subject:(Composite Adhesive)

1. Engozogho Anris, Starlin Peguy. Etude des produits connexes de la transformation industrielle du bois d’Okoumé du Gabon : analyse et mise en œuvre de nouveaux matériaux : Study of related industrial transformed products from Gabonese Okoume wood : analysis and implementation of new materials.

Degree: Docteur es, Chimie Analytique et environnement, 2020, Pau

URL: http://www.theses.fr/2020PAUU3005

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Ce travail de thèse s’est organisé autour de la valorisation des produits connexes issus de la première et de la deuxième transformation des bois du… (more)

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Ce travail de thèse s’est organisé autour de la valorisation des produits connexes issus de la première et de la deuxième transformation des bois du Bassin du Congo en général et de l’Aucoumea Klaineana Pierre (Okoumé) du Gabon en particulier.En effet, 85% des produits connexes issus de cette industrie, sont incinérés 24/24h à ciel ouvert, la raison étant l’absence ou les faibles voies de valorisations possibles. Notre objectif premier est de présenter des voies de valorisations capables de réduire considérablement l’incinération de ces rebus. De ce fait et pour répondre à cette première problématique, nous avons procédé dans un premier temps, par une analyse chimique des trois parties du bois (écorce, aubier, cœur), visant à mettre en évidence les différentes molécules et leurs potentiels domaines de valorisation. Les molécules principalement visées étant les polyphénols. Nous avons par la suite porté un accent particulier aux tanins condensés extraits de l’Okoumé, que nous avons caractérisé thermiquement et chimiquement. Afin d’observer leur pouvoir collant, notamment leur capacité à être utilisé comme substrat pour la mise en point d’un adhésif bio-sourcée pour l’industrie du contreplaqué et du panneau.La deuxième voie de valorisation mise en évidence, est la mise au point d’une composite bois-plastique par thermocompression sans passé par une étape d’extrusion préalable. Ce composite pourra trouver son utilisation dans la construction et l’aménagement interne.

This thesis work was organized around the promotion of related products from the first and second processing of wood from the Congo Basin in general and Aucoumea Klaineana Pierre (Okoumé) from Gabon in particular.Indeed, 85% of related products from this industry are incinerated 24 hours a day in the open air, the reason being the absence or the weak ways of possible valorizations.Our primary objective is to present ways of recovery capable of considerably reducing the incineration of this waste. Therefore and to answer this first issue, we proceeded first, by a chemical analysis of the three parts of the wood (bark, sapwood, heart), aiming to highlight the different molecules and their potential areas of development. The molecules mainly targeted are polyphenols. We then focused in particular on the condensed tannins extracted from Okoumé, which we characterized thermally and chemically. To observe their stickiness, including their ability to be used as a substrate for the development of a bio-sourced adhesive for the plywood and panel industry.The second recovery method highlighted is the development of a wood-plastic composite by thermocompression without having gone through a prior extrusion step. This composite can find its use in construction and internal design.

Advisors/Committee Members: Charrier, Bertrand (thesis director).

Subjects/Keywords: Adhésif; Composite; Okoumé; Polyphénols; Tanins; Adhesive; Composite; Okoume; Polyphenols; Tannins; 543

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Engozogho Anris, S. P. (2020). Etude des produits connexes de la transformation industrielle du bois d’Okoumé du Gabon : analyse et mise en œuvre de nouveaux matériaux : Study of related industrial transformed products from Gabonese Okoume wood : analysis and implementation of new materials. (Doctoral Dissertation). Pau. Retrieved from http://www.theses.fr/2020PAUU3005

Chicago Manual of Style (16^th Edition):

Engozogho Anris, Starlin Peguy. “Etude des produits connexes de la transformation industrielle du bois d’Okoumé du Gabon : analyse et mise en œuvre de nouveaux matériaux : Study of related industrial transformed products from Gabonese Okoume wood : analysis and implementation of new materials.” 2020. Doctoral Dissertation, Pau. Accessed January 18, 2021. http://www.theses.fr/2020PAUU3005.

MLA Handbook (7^th Edition):

Engozogho Anris, Starlin Peguy. “Etude des produits connexes de la transformation industrielle du bois d’Okoumé du Gabon : analyse et mise en œuvre de nouveaux matériaux : Study of related industrial transformed products from Gabonese Okoume wood : analysis and implementation of new materials.” 2020. Web. 18 Jan 2021.

Vancouver:

Engozogho Anris SP. Etude des produits connexes de la transformation industrielle du bois d’Okoumé du Gabon : analyse et mise en œuvre de nouveaux matériaux : Study of related industrial transformed products from Gabonese Okoume wood : analysis and implementation of new materials. [Internet] [Doctoral dissertation]. Pau; 2020. [cited 2021 Jan 18]. Available from: http://www.theses.fr/2020PAUU3005.

Council of Science Editors:

Engozogho Anris SP. Etude des produits connexes de la transformation industrielle du bois d’Okoumé du Gabon : analyse et mise en œuvre de nouveaux matériaux : Study of related industrial transformed products from Gabonese Okoume wood : analysis and implementation of new materials. [Doctoral Dissertation]. Pau; 2020. Available from: http://www.theses.fr/2020PAUU3005

2. Darroman, Emilie. Elaboration de polymères biosourcés pour application dans un matériau composite à base de farine de liège : Development of bio-based polymers for use in cork composites.

Degree: Docteur es, Chimie et Physicochimie des matériaux, 2014, Montpellier, Ecole nationale supérieure de chimie

URL: http://www.theses.fr/2014ENCM0018

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Les travaux présentés concernent le développement d'un matériau composite (farine de liège, liant et additif) pour l'élaboration de bouchons technologiques mis en œuvre par un… (more)

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Les travaux présentés concernent le développement d'un matériau composite (farine de liège, liant et additif) pour l'élaboration de bouchons technologiques mis en œuvre par un procédé de moulage. Dans le cadre de ces travaux, la synthèse, la caractérisation et la formulation d'un polymère biosourcé ont été développées en tant que liant de ce matériau composite. La stratégie de cette thèse a été de développer un polymère obtenu par polycondensation d'un composé époxydique avec un agent réticulant de type amine. Dans un premier temps, une caractérisation approfondie du liant utilisé par DIAM Bouchage a été réalisée pour définir le cahier des charges du nouveau polymère. L'étude de composés époxydiques et amines ont permis de sélectionner des précurseurs commerciaux biosourcés et non-classés CMR qui répondent au cahier des charges. De nouveaux précurseurs époxydiques et amines ont été synthétisés à partir de bioressources telles que la vanilline et les dérivés d'acide gras. La synthèse de résines époxy-amines a été effectuée grâce aux précurseurs commerciaux sélectionnés et ces résines ont été caractérisées thermiquement, mécaniquement et physiquement. Finalement, des bouchons technologiques ont été synthétisés selon différentes formulations et caractérisés pour évaluer leur adéquation avec les spécifications de DIAM Bouchage.

The presented study concerns the development of a composite material (cork flour, binder and additive) in order to produce of technological cork-stoppers carried out by a molding process. As part of this work, the synthesis, the characterization and the formulation of a biobased polymer have been developed as a binder of the composite material. The strategy of this thesis was to develop a polymer obtained by polycondensation of an epoxy compound with an amine curing agent.As a first step, a thorough characterization of the binder used by DIAM Bouchage was carried out to define the specifications of the novel polymer. The study of epoxy and amine compounds led to the selection of biobased commercial and non-classified CMR precursors that meet the specifications. Novel epoxy and amine precursors were synthesized from biobased resources such as vanillin and fatty acid derivatives. The synthesis of epoxy-amine resins was performed with the selected commercial precursors and these resins were characterized thermally, mechanically and physically. Finally, different formulations of technological cork-stoppers were synthesized and characterized to evaluate their suitability with the DIAM Bouchage specifications.

Advisors/Committee Members: Boutevin, Bernard (thesis director), Caillol, Sylvain (thesis director).

Subjects/Keywords: Composite; Biosourcé; Liège; Résine; Adhésif; Composite; Biobased; Cork; Resin; Adhesive; 540

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Darroman, E. (2014). Elaboration de polymères biosourcés pour application dans un matériau composite à base de farine de liège : Development of bio-based polymers for use in cork composites. (Doctoral Dissertation). Montpellier, Ecole nationale supérieure de chimie. Retrieved from http://www.theses.fr/2014ENCM0018

Chicago Manual of Style (16^th Edition):

Darroman, Emilie. “Elaboration de polymères biosourcés pour application dans un matériau composite à base de farine de liège : Development of bio-based polymers for use in cork composites.” 2014. Doctoral Dissertation, Montpellier, Ecole nationale supérieure de chimie. Accessed January 18, 2021. http://www.theses.fr/2014ENCM0018.

MLA Handbook (7^th Edition):

Darroman, Emilie. “Elaboration de polymères biosourcés pour application dans un matériau composite à base de farine de liège : Development of bio-based polymers for use in cork composites.” 2014. Web. 18 Jan 2021.

Vancouver:

Darroman E. Elaboration de polymères biosourcés pour application dans un matériau composite à base de farine de liège : Development of bio-based polymers for use in cork composites. [Internet] [Doctoral dissertation]. Montpellier, Ecole nationale supérieure de chimie; 2014. [cited 2021 Jan 18]. Available from: http://www.theses.fr/2014ENCM0018.

Council of Science Editors:

Darroman E. Elaboration de polymères biosourcés pour application dans un matériau composite à base de farine de liège : Development of bio-based polymers for use in cork composites. [Doctoral Dissertation]. Montpellier, Ecole nationale supérieure de chimie; 2014. Available from: http://www.theses.fr/2014ENCM0018

Indian Institute of Science

3. Vijaya Kumar, R L. Some Experimental and Numerical Studies on Evaluation of Adhesive Bond Integrity of Composites Lap Shear Joints.

Degree: PhD, Faculty of Engineering, 2018, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/3220

► Adhesive bonding which has been in use for long as a traditional joining method has gained ground in the last couple of decades due to… (more)

▼ Adhesive bonding which has been in use for long as a traditional joining method has gained ground in the last couple of decades due to the introduction of advanced composite materials into the aerospace industry. Bonded structures have advantages such as high corrosion and fatigue resistance, ability to join dissimilar materials, reduced stress concentration, uniform stress distribution, good damping characteristics etc. They also have certain limitations like environmental degradation, existence of defects like pores, voids and disbonds, difficulty in maintenance and repair etc. A serious drawback in the use of adhesively bonded structures has been that there are no established comprehensive non-destructive testing (NDT) techniques for their evaluation. Further, a reliable evaluation of the effect of the existing defects on strength and durability of adhesive joints is yet to be achieved. This has been a challenge for the research and development community over several decades and hence, been the motivation behind this piece of research work. Under the scope of the work carried out in the thesis, some of the primary factors such as the existence of defects, degradation of the adhesive, stress and strain distribution in the bonded region etc., have been considered to study the bond integrity in composite to composite lap shear joints. The problem becomes complex if all the parameters affecting the adhesive joint are varied simultaneously. Taking this into consideration, one of the key parameters affecting the bond quality, viz., the adhesive layer degradation was chosen to study its effect on the bonded joint. The epoxy layer was added with different, definite amount of Poly vinyl alcohol (PVA) to arrive at sets of bonded joint specimens with varied adhesive layer properties. A thorough review of different non destructive testing methods applied to this particular problem showed that ultrasonic wave based techniques could be the right choice. To start with, preliminary experimental investigations were carried on unidirectional glass fiber reinforced plastic (GFRP-epoxy) lap joints. The adhesive joints were subjected to non destructive evaluation (NDE) using ultrasonic through transmission and pulse echo techniques as also low energy digital X-ray techniques. The results obtained showed a variation in reflected and transmitted ultrasonic pulse amplitude with bond quality. Digital X-Ray radiography technique showed a variation in the intensity of transmitted x-rays due to variation in the density of adhesive. Standard mechanical tests revealed that the addition of PVA decreased the bond strength. A plot of coefficient of reflection from the first interface and the bond strength showed a linear correlation between them. After obtaining a cursory feel and understanding of the parameters involved with the preliminary experiments on GFRP adhesive joints which yielded interesting and encouraging results, further work was carried on specimens made out of autoclave cured carbon fiber reinforced plastic (CFRP)-epoxy… Advisors/Committee Members: Murthy, C R L (advisor), Bhat, M R (advisor).

Subjects/Keywords: Adhesive Bonding; Composite Lap Joints; Adhesive Joints; Glass Fiber Reinforced Plastic Adhesive Joints; Carbon Fiber Reinforced Plastic Adhesive Joints; Composite Adhesive Joints; Composite Lap Shear Joints; Non Destructive Evaluation - Adehsive Joints; Composite Epoxy Adhesive Lap Joints; Composite Bonded Joints; Aerospace Composites; Composite Lap Joints; Composite Single Lap Joint; Composite Adhesively Bonded Joints; Composite Adhesive Lap Joints; Composite Single-lap Joints; Adhesively Bonded Joints; Single Lap Shear Joints; Adhesively Bonded Composite Lap Joints; Adhesive Bond Integrity; Aerospace Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Vijaya Kumar, R. L. (2018). Some Experimental and Numerical Studies on Evaluation of Adhesive Bond Integrity of Composites Lap Shear Joints. (Doctoral Dissertation). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/3220

Chicago Manual of Style (16^th Edition):

Vijaya Kumar, R L. “Some Experimental and Numerical Studies on Evaluation of Adhesive Bond Integrity of Composites Lap Shear Joints.” 2018. Doctoral Dissertation, Indian Institute of Science. Accessed January 18, 2021. http://etd.iisc.ac.in/handle/2005/3220.

MLA Handbook (7^th Edition):

Vijaya Kumar, R L. “Some Experimental and Numerical Studies on Evaluation of Adhesive Bond Integrity of Composites Lap Shear Joints.” 2018. Web. 18 Jan 2021.

Vancouver:

Vijaya Kumar RL. Some Experimental and Numerical Studies on Evaluation of Adhesive Bond Integrity of Composites Lap Shear Joints. [Internet] [Doctoral dissertation]. Indian Institute of Science; 2018. [cited 2021 Jan 18]. Available from: http://etd.iisc.ac.in/handle/2005/3220.

Council of Science Editors:

Vijaya Kumar RL. Some Experimental and Numerical Studies on Evaluation of Adhesive Bond Integrity of Composites Lap Shear Joints. [Doctoral Dissertation]. Indian Institute of Science; 2018. Available from: http://etd.iisc.ac.in/handle/2005/3220

Michigan State University

4. Khawarizmi, Ryan. Experimental photoelastic strain measurements and numerical simulations on multi-material Pi-/T- joints.

Degree: 2018, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:19283

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Thesis M.S. Michigan State University. Mechanical Engineering 2018

An adhesively bonded Pi-/T-joint is a common ‘out-of-plane’ structural joint that connects a vertical (web) and a… (more)

Subjects/Keywords: Adhesive joints – Testing; Composite materials; Strains and stresses; Adhesive joints – Mathematical models; Mechanical engineering; Optics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Khawarizmi, R. (2018). Experimental photoelastic strain measurements and numerical simulations on multi-material Pi-/T- joints. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:19283

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Khawarizmi, Ryan. “Experimental photoelastic strain measurements and numerical simulations on multi-material Pi-/T- joints.” 2018. Thesis, Michigan State University. Accessed January 18, 2021. http://etd.lib.msu.edu/islandora/object/etd:19283.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Khawarizmi, Ryan. “Experimental photoelastic strain measurements and numerical simulations on multi-material Pi-/T- joints.” 2018. Web. 18 Jan 2021.

Vancouver:

Khawarizmi R. Experimental photoelastic strain measurements and numerical simulations on multi-material Pi-/T- joints. [Internet] [Thesis]. Michigan State University; 2018. [cited 2021 Jan 18]. Available from: http://etd.lib.msu.edu/islandora/object/etd:19283.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Khawarizmi R. Experimental photoelastic strain measurements and numerical simulations on multi-material Pi-/T- joints. [Thesis]. Michigan State University; 2018. Available from: http://etd.lib.msu.edu/islandora/object/etd:19283

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan Technological University

5. Pinnaratip, Rattapol. STUDY OF SILICA NANOPARTICLE COMPOSITE ON SILICA-HYDROGEN PEROXIDE COMPLEXATIONS AND THEIR EFFECTS IN CATECHOL BASED ADHESIVES.

Degree: PhD, Department of Biomedical Engineering, 2020, Michigan Technological University

URL: https://digitalcommons.mtu.edu/etdr/1044

► Mussel adhesive proteins contain catechol moiety, which allows the protein to crosslinked, solidify, and adhere to surrounding surfaces even under wet conditions. Incorporating the… (more)

Subjects/Keywords: Silica Particle; Wound Healing; Controlled Release; Catechol Adhesive; Hydrogen Peroxide; Composite Adhesive; Biomaterials

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pinnaratip, R. (2020). STUDY OF SILICA NANOPARTICLE COMPOSITE ON SILICA-HYDROGEN PEROXIDE COMPLEXATIONS AND THEIR EFFECTS IN CATECHOL BASED ADHESIVES. (Doctoral Dissertation). Michigan Technological University. Retrieved from https://digitalcommons.mtu.edu/etdr/1044

Chicago Manual of Style (16^th Edition):

Pinnaratip, Rattapol. “STUDY OF SILICA NANOPARTICLE COMPOSITE ON SILICA-HYDROGEN PEROXIDE COMPLEXATIONS AND THEIR EFFECTS IN CATECHOL BASED ADHESIVES.” 2020. Doctoral Dissertation, Michigan Technological University. Accessed January 18, 2021. https://digitalcommons.mtu.edu/etdr/1044.

MLA Handbook (7^th Edition):

Pinnaratip, Rattapol. “STUDY OF SILICA NANOPARTICLE COMPOSITE ON SILICA-HYDROGEN PEROXIDE COMPLEXATIONS AND THEIR EFFECTS IN CATECHOL BASED ADHESIVES.” 2020. Web. 18 Jan 2021.

Vancouver:

Pinnaratip R. STUDY OF SILICA NANOPARTICLE COMPOSITE ON SILICA-HYDROGEN PEROXIDE COMPLEXATIONS AND THEIR EFFECTS IN CATECHOL BASED ADHESIVES. [Internet] [Doctoral dissertation]. Michigan Technological University; 2020. [cited 2021 Jan 18]. Available from: https://digitalcommons.mtu.edu/etdr/1044.

Council of Science Editors:

Pinnaratip R. STUDY OF SILICA NANOPARTICLE COMPOSITE ON SILICA-HYDROGEN PEROXIDE COMPLEXATIONS AND THEIR EFFECTS IN CATECHOL BASED ADHESIVES. [Doctoral Dissertation]. Michigan Technological University; 2020. Available from: https://digitalcommons.mtu.edu/etdr/1044

Université de Bordeaux I

6. Le Crom, Bénédicte. Evaluation ultrasonore des réparations de structures métalliques par collage de patchs composites : Tribofunctional study of low-friction engine liner textures generated by honing process.

Degree: Docteur es, Mécanique, 2010, Université de Bordeaux I

URL: http://www.theses.fr/2010BOR14024

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Cette thèse s’est déroulée dans le contexte de l’évaluation non destructive du collage de patches composites employés pour la réparation de structures aéronautiques. Le besoin… (more)

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Cette thèse s’est déroulée dans le contexte de l’évaluation non destructive du collage de patches composites employés pour la réparation de structures aéronautiques. Le besoin a été exprimé par la DGA Techniques Aéronautiques (Toulouse). Le travail effectué a consisté en l’exploitation des ondes guidées, de type SH puis Lamb, pour mesurer des caractéristiques mécaniques d'un joint de colle et tenter d’évaluer, de manière non destructive, la qualité du collage. Dans un premier temps, les propriétés viscoélastiques des matériaux assemblés sont déterminées. Elles servent alors de données d’entrée à des modèles, basés sur la méthode SAFE (Semi Analytical Finite Element method), permettant d’obtenir les courbes de dispersion ainsi que les champs des différents modes guidés se propageant le long de l’assemblage collé. Ces simulations numériques permettent alors d’évaluer le potentiel des ondes guidées à caractériser un adhésif. Des mesures expérimentales sont ensuite menées pour confirmer les prédictions numériques. Finalement la résolution d’un problème inverse, qui consiste à évaluer les modules de rigidité de la couche de colle se situant entre une plaque d’aluminium et un patch, est proposée pour établir des pistes d’évaluation non destructive d’un collage répondant au besoin industriel. Cette étude a été financée par la DGA, France.

Repairing of metallic structures using composite patches bonded with an adhesive layer is more and more common in the aeronautic field, and particularly at DGA Techniques Aéronautiques. In order to guarantee the quality of this bond, the sensitivity of ultrasonic guided waves is investigated. Shear-horizontally polarized (SH) waves, and Lamb waves are investigated to infer the stiffness of the adhesive layer. The SAFE method is used to predict the dispersion curves and mode shapes of the different wave modes propagating along the three-layer assembly. Numerical simulations are run for selecting the most appropriate wave modes, i.e. with higher sensitivity to the stiffness of the bond than to other components properties. Experiments are also made for generating-detecting pre-selected SH or Lamb wave modes in order to confirm the numerical predictions. Finally the resolution of an inverse problem, consisting in the evaluation of the stiffness modulus of the bond layer between an aluminium plate and a carbon-epoxy composite patch, at different curing time, is proposed as a contribution to the establishment of possible strategies for bonds testing. This work was supported by DGA, France.

Advisors/Committee Members: Castaings, Michel (thesis director).

Subjects/Keywords: Ondes ultrasonores; CND; Collage; Patch composite; Ultrasonic waves; NDT; Adhesive layer; Composite patch repair

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APA (6^th Edition):

Le Crom, B. (2010). Evaluation ultrasonore des réparations de structures métalliques par collage de patchs composites : Tribofunctional study of low-friction engine liner textures generated by honing process. (Doctoral Dissertation). Université de Bordeaux I. Retrieved from http://www.theses.fr/2010BOR14024

Chicago Manual of Style (16^th Edition):

Le Crom, Bénédicte. “Evaluation ultrasonore des réparations de structures métalliques par collage de patchs composites : Tribofunctional study of low-friction engine liner textures generated by honing process.” 2010. Doctoral Dissertation, Université de Bordeaux I. Accessed January 18, 2021. http://www.theses.fr/2010BOR14024.

MLA Handbook (7^th Edition):

Le Crom, Bénédicte. “Evaluation ultrasonore des réparations de structures métalliques par collage de patchs composites : Tribofunctional study of low-friction engine liner textures generated by honing process.” 2010. Web. 18 Jan 2021.

Vancouver:

Le Crom B. Evaluation ultrasonore des réparations de structures métalliques par collage de patchs composites : Tribofunctional study of low-friction engine liner textures generated by honing process. [Internet] [Doctoral dissertation]. Université de Bordeaux I; 2010. [cited 2021 Jan 18]. Available from: http://www.theses.fr/2010BOR14024.

Council of Science Editors:

Le Crom B. Evaluation ultrasonore des réparations de structures métalliques par collage de patchs composites : Tribofunctional study of low-friction engine liner textures generated by honing process. [Doctoral Dissertation]. Université de Bordeaux I; 2010. Available from: http://www.theses.fr/2010BOR14024

Brno University of Technology

7. Henkrichová, Jana. Optimalizace rozhraní v dlouhovláknovém dentálním kompozitu: Optimization of interfaces in long-fiber reinforced dental composites.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/38557

► This bachelor's thesis is dealing with study of fiber reinforced dental composites. Important properties of dental polymers, used fibers and options of their treatment were… (more)

Subjects/Keywords: vláknový kompozit; plazma; adhézny spoj; dentálny kompozit; fiber reinforced composite; plasma; adhesive bond; dental composite

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Henkrichová, J. (2019). Optimalizace rozhraní v dlouhovláknovém dentálním kompozitu: Optimization of interfaces in long-fiber reinforced dental composites. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/38557

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Henkrichová, Jana. “Optimalizace rozhraní v dlouhovláknovém dentálním kompozitu: Optimization of interfaces in long-fiber reinforced dental composites.” 2019. Thesis, Brno University of Technology. Accessed January 18, 2021. http://hdl.handle.net/11012/38557.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Henkrichová, Jana. “Optimalizace rozhraní v dlouhovláknovém dentálním kompozitu: Optimization of interfaces in long-fiber reinforced dental composites.” 2019. Web. 18 Jan 2021.

Vancouver:

Henkrichová J. Optimalizace rozhraní v dlouhovláknovém dentálním kompozitu: Optimization of interfaces in long-fiber reinforced dental composites. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/11012/38557.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Henkrichová J. Optimalizace rozhraní v dlouhovláknovém dentálním kompozitu: Optimization of interfaces in long-fiber reinforced dental composites. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/38557

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

RMIT University

8. White, C. Health monitoring of bonded composite aerospace structures.

Degree: 2009, RMIT University

URL: http://researchbank.rmit.edu.au/view/rmit:6847

► Airframe assemblers have long recognised that for a new aircraft to be successful it must use less fuel, have lower maintenance requirements, and be more… (more)

▼ Airframe assemblers have long recognised that for a new aircraft to be successful it must use less fuel, have lower maintenance requirements, and be more affordable. One common tactic is the use of innovative materials, such as advanced composites. Composite materials are suited to structural connection by adhesive bonding, which minimises the need for inefficient mechanical fastening. The aim of this PhD project was to investigate the application of existing, yet immature Structural Health Monitoring (SHM) techniques to adhesively bonded composite aerospace structures. The PhD study focused on two emerging SHM technologies - frequency response and comparative vacuum monitoring (CVM). This project aimed to provide missing critical information for each technique. This included determining sensitivity to damage, repeatability of results, and operating limitations for the frequency response method. Study of the CVM technique aimed to address effectiveness of damage detection, manufacture of sensor cavities, and the influence of sensor integration on mechanical performance of bonded structures. Experimental research work is presented examining the potential of frequency response techniques for the detection of debonding in composite-to-composite external patch repairs. Natural frequencies were found to decrease over a discrete frequency range as the debond size increased; confirming that such features could be used to both detect and characterise damage. The effectiveness of the frequency response technique was then confirmed for composite patch and scarf repair specimens for free-free and fixed-fixed boundary conditions. Finally, the viability of the frequency response technique was assessed for a scarf repair of a real aircraft component, where it was found that structural damping limited the maximum useable frequency. The feasibility of CVM technique for the inspection of co-cured stiffener-skin aircraft structures was explored. The creation of sensor cavities with tapered mandrels was found to significantly alter the microstructure of the stiffener, including crimping and waviness of fibres and resin-rich zones between plies. Representative stiffened-skin structure with two sensor cavity configurations (parallel and perpendicular to the stiffener direction) was tested to failure in tension and compression. While tensile failure strength was significantly reduced for both configurations (up to 25%), no appreciable differences in compression properties were found. Two potential sensor cavity configurations were investigated for the extension of the CVM technique to pre-cured and co-bonded scarf repair schemes. The creation of radial and circumferential CVM sensor cavities was found to significantly alter the microstructure of the adhesive bond-line and the architecture of the repair material in the case of the co-bonded repair. These alterations changed the failure mode and reduced the tensile failure strength of the repair. A fibre straightening mechanism responsible for progressive failure (specific to…

Subjects/Keywords: Fields of Research; composite; adhesive; joint; repair; SHM; CVM; frequency response

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APA (6^th Edition):

White, C. (2009). Health monitoring of bonded composite aerospace structures. (Thesis). RMIT University. Retrieved from http://researchbank.rmit.edu.au/view/rmit:6847

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

White, C. “Health monitoring of bonded composite aerospace structures.” 2009. Thesis, RMIT University. Accessed January 18, 2021. http://researchbank.rmit.edu.au/view/rmit:6847.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

White, C. “Health monitoring of bonded composite aerospace structures.” 2009. Web. 18 Jan 2021.

Vancouver:

White C. Health monitoring of bonded composite aerospace structures. [Internet] [Thesis]. RMIT University; 2009. [cited 2021 Jan 18]. Available from: http://researchbank.rmit.edu.au/view/rmit:6847.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

White C. Health monitoring of bonded composite aerospace structures. [Thesis]. RMIT University; 2009. Available from: http://researchbank.rmit.edu.au/view/rmit:6847

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Mississippi State University

9. Jolly, Prateek. Lamb wave based active damage identification in adhesively bonded composite lap joints.

Degree: MS, Aerospace Engineering, 2016, Mississippi State University

URL: http://sun.library.msstate.edu/ETD-db/theses/available/etd-11122015-160426/ ;

► Bonding composite structures using adhesives offers several advantages over mechanical fastening such as better flow stress, weight saving, improved fatigue resistance and the ability… (more)

Subjects/Keywords: PZT; Lap joint; Vibrometer; Composite materials; Lamb waves; Adhesive bonding

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APA (6^th Edition):

Jolly, P. (2016). Lamb wave based active damage identification in adhesively bonded composite lap joints. (Masters Thesis). Mississippi State University. Retrieved from http://sun.library.msstate.edu/ETD-db/theses/available/etd-11122015-160426/ ;

Chicago Manual of Style (16^th Edition):

Jolly, Prateek. “Lamb wave based active damage identification in adhesively bonded composite lap joints.” 2016. Masters Thesis, Mississippi State University. Accessed January 18, 2021. http://sun.library.msstate.edu/ETD-db/theses/available/etd-11122015-160426/ ;.

MLA Handbook (7^th Edition):

Jolly, Prateek. “Lamb wave based active damage identification in adhesively bonded composite lap joints.” 2016. Web. 18 Jan 2021.

Vancouver:

Jolly P. Lamb wave based active damage identification in adhesively bonded composite lap joints. [Internet] [Masters thesis]. Mississippi State University; 2016. [cited 2021 Jan 18]. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-11122015-160426/ ;.

Council of Science Editors:

Jolly P. Lamb wave based active damage identification in adhesively bonded composite lap joints. [Masters Thesis]. Mississippi State University; 2016. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-11122015-160426/ ;

University of Alberta

10. Parashar, Avinash. Graphene Reinforced Adhesives for Improved Joint Characteristics in Large Diameter Composite Piping.

Degree: PhD, Department of Mechanical Engineering, 2012, University of Alberta

URL: https://era.library.ualberta.ca/files/rb68xd280

► Higher specific properties and corrosion resistance of fibre reinforced polymer (FRP) pipes make them a potential candidate for replacing metallic piping structures. This research project… (more)

Subjects/Keywords: Finite Element Analysis; Composite Piping; Multiscale Modeling; Atomistic Modeling; Adhesive bonding

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APA (6^th Edition):

Parashar, A. (2012). Graphene Reinforced Adhesives for Improved Joint Characteristics in Large Diameter Composite Piping. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/rb68xd280

Chicago Manual of Style (16^th Edition):

Parashar, Avinash. “Graphene Reinforced Adhesives for Improved Joint Characteristics in Large Diameter Composite Piping.” 2012. Doctoral Dissertation, University of Alberta. Accessed January 18, 2021. https://era.library.ualberta.ca/files/rb68xd280.

MLA Handbook (7^th Edition):

Parashar, Avinash. “Graphene Reinforced Adhesives for Improved Joint Characteristics in Large Diameter Composite Piping.” 2012. Web. 18 Jan 2021.

Vancouver:

Parashar A. Graphene Reinforced Adhesives for Improved Joint Characteristics in Large Diameter Composite Piping. [Internet] [Doctoral dissertation]. University of Alberta; 2012. [cited 2021 Jan 18]. Available from: https://era.library.ualberta.ca/files/rb68xd280.

Council of Science Editors:

Parashar A. Graphene Reinforced Adhesives for Improved Joint Characteristics in Large Diameter Composite Piping. [Doctoral Dissertation]. University of Alberta; 2012. Available from: https://era.library.ualberta.ca/files/rb68xd280

University of Toronto

11. Ngai, Kimberly. Dental Adhesive Systems Loaded with Antimicrobial Drug-silica-Co-assembled Particles for Interfacial Biodegradation and Recurrent Caries Reduction.

Degree: 2020, University of Toronto

URL: http://hdl.handle.net/1807/103721

►

Resin composite restorations fail prematurely mainly due to biodegradation and bacterial attack, leading to recurrent caries. It is hypothesized that 1) dental adhesives containing drug-silica-co-assembled-particles… (more)

Subjects/Keywords: Antimicrobial; Biodegradation; Biofilm; Dental adhesive; Resin composite; Secondary caries; 0567

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APA (6^th Edition):

Ngai, K. (2020). Dental Adhesive Systems Loaded with Antimicrobial Drug-silica-Co-assembled Particles for Interfacial Biodegradation and Recurrent Caries Reduction. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/103721

Chicago Manual of Style (16^th Edition):

Ngai, Kimberly. “Dental Adhesive Systems Loaded with Antimicrobial Drug-silica-Co-assembled Particles for Interfacial Biodegradation and Recurrent Caries Reduction.” 2020. Masters Thesis, University of Toronto. Accessed January 18, 2021. http://hdl.handle.net/1807/103721.

MLA Handbook (7^th Edition):

Ngai, Kimberly. “Dental Adhesive Systems Loaded with Antimicrobial Drug-silica-Co-assembled Particles for Interfacial Biodegradation and Recurrent Caries Reduction.” 2020. Web. 18 Jan 2021.

Vancouver:

Ngai K. Dental Adhesive Systems Loaded with Antimicrobial Drug-silica-Co-assembled Particles for Interfacial Biodegradation and Recurrent Caries Reduction. [Internet] [Masters thesis]. University of Toronto; 2020. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/1807/103721.

Council of Science Editors:

Ngai K. Dental Adhesive Systems Loaded with Antimicrobial Drug-silica-Co-assembled Particles for Interfacial Biodegradation and Recurrent Caries Reduction. [Masters Thesis]. University of Toronto; 2020. Available from: http://hdl.handle.net/1807/103721

Brno University of Technology

12. Bystřický, Zdeněk. Vliv struktury vláknového kompozitu (FRC) a adheziva na pevnost spoje FRC/částicový dentální kompozit: Effect of Structure of FRC and Adhesive on the Bond Strength of Joint between FRC and Particulate Filled Dental Composite.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/7392

► This bachelor’s thesis investigates how is the strength of adhesive bond between dental FRC (Fiber Reinforced Composite) and adhesive affected by the type of reinforcement… (more)

Subjects/Keywords: adhezní spoj; vláknový kompozit; pevnost; adhesive bond; fiber reinforced composite; strength

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bystřický, Z. (2019). Vliv struktury vláknového kompozitu (FRC) a adheziva na pevnost spoje FRC/částicový dentální kompozit: Effect of Structure of FRC and Adhesive on the Bond Strength of Joint between FRC and Particulate Filled Dental Composite. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/7392

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bystřický, Zdeněk. “Vliv struktury vláknového kompozitu (FRC) a adheziva na pevnost spoje FRC/částicový dentální kompozit: Effect of Structure of FRC and Adhesive on the Bond Strength of Joint between FRC and Particulate Filled Dental Composite.” 2019. Thesis, Brno University of Technology. Accessed January 18, 2021. http://hdl.handle.net/11012/7392.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bystřický, Zdeněk. “Vliv struktury vláknového kompozitu (FRC) a adheziva na pevnost spoje FRC/částicový dentální kompozit: Effect of Structure of FRC and Adhesive on the Bond Strength of Joint between FRC and Particulate Filled Dental Composite.” 2019. Web. 18 Jan 2021.

Vancouver:

Bystřický Z. Vliv struktury vláknového kompozitu (FRC) a adheziva na pevnost spoje FRC/částicový dentální kompozit: Effect of Structure of FRC and Adhesive on the Bond Strength of Joint between FRC and Particulate Filled Dental Composite. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/11012/7392.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bystřický Z. Vliv struktury vláknového kompozitu (FRC) a adheziva na pevnost spoje FRC/částicový dentální kompozit: Effect of Structure of FRC and Adhesive on the Bond Strength of Joint between FRC and Particulate Filled Dental Composite. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/7392

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

13. Χαριτίδης, Παναγιώτης. Πειραματική και αριθμητική μελέτη συγκολλητών συνδέσμων μεταξύ διαφορετικών υλικών.

Degree: 2015, University of Patras; Πανεπιστήμιο Πατρών

URL: http://hdl.handle.net/10442/hedi/39376

► Joints make them attractive in industries such as aeronautics, automotive and civilengineering. When compared to mechanically fastened joints, adhesive joints have theadvantages of having fewer… (more)

▼ Joints make them attractive in industries such as aeronautics, automotive and civilengineering. When compared to mechanically fastened joints, adhesive joints have theadvantages of having fewer sources of stress concentrations, more uniformdistribution of load, and better fatigue properties. Structures that are adhesivelybonded must be designed in such a way so that certain types of loading should beavoided or at least minimized (cleavage). The adhesive should be mainly loaded inshear if optimum strength is required. Adhesives are generally stronger incompression than in tension, and this should be taken into account in the design byusing appropriate pressure depended yield-failure criteria.The scope of this thesis is the experimental study and numerical analysis of balancedand unbalanced joints with the aim of deeper investigation of the phenomenon, as inliterature, large differences between the experimental results and theoreticalpredictions of the existing bending moment coefficient, especially after the erosion ofthe joint material, which is a random event whose scope we cannot predefined,especially when the adherends have different mechanical properties. The configuration of the Single Lap Joint will be used in the current work, as it issimple to manufacture and is the basis for most joint configurations. Single lap jointswere manufactured using Boron/Epoxy and Aluminum 2024-T3 as adherends andFM94 as adhesive. All joints were manufactured in Hellenic Airspace Industry S.A.(H.A.I S.A.), according to ASTM D-1002. A total of 224 specimens were tested tofailure. One of the aims of the current investigation was to access the effect on theoverlap length on the strength and failure of the single lap joint. Although simple tomanufacture, the single lap joint is quite complex to analyze. The eccentricity of theload path causes the joint to rotate under load. The materials (aluminum 2024-T3 andFM94) can also deform plastically under load. Poisson’s ratio effects will give rise totransverse stresses in both the adhesive and adherends. As a consequence, a threedimensionalstress state develops throughout the joint. The behavior of bothadherends and adhesives in the strength to the joints so both adhesive and adherendsmust be modeled accurately.Joints with four different overlap lengths were manufactured, ranging from 13mm to40mm (20 and 30mm). The free length was kept constant at 63.5mm for all the jointconfigurations. Another parameter affecting the strength of joints is the glue linethickness, which kept constant at 0.04mm. Most specimens remain in a salt spraychamber for 72, 166, and 236 hours, respectively at 35 °C with 5% NaCl, in order toinvestigate the effect of a controlled corrosive environment in the strength and failureof the specimens. Once the stress and strain states have been defined by usingappropriate modeling procedures and criteria, then a failure analysis will be needed.The failure criteria must be applicable in a variety of cases and basic materialproperties (from tensile and shear tests) should be used…

Subjects/Keywords: Σύνθετα υλικά; Εποξική κόλλα; Σύνδεσμοι; Composite materials; Epoxy adhesive; Joints

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Χαριτίδης, . �. (2015). Πειραματική και αριθμητική μελέτη συγκολλητών συνδέσμων μεταξύ διαφορετικών υλικών. (Thesis). University of Patras; Πανεπιστήμιο Πατρών. Retrieved from http://hdl.handle.net/10442/hedi/39376

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Χαριτίδης, Παναγιώτης. “Πειραματική και αριθμητική μελέτη συγκολλητών συνδέσμων μεταξύ διαφορετικών υλικών.” 2015. Thesis, University of Patras; Πανεπιστήμιο Πατρών. Accessed January 18, 2021. http://hdl.handle.net/10442/hedi/39376.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Χαριτίδης, Παναγιώτης. “Πειραματική και αριθμητική μελέτη συγκολλητών συνδέσμων μεταξύ διαφορετικών υλικών.” 2015. Web. 18 Jan 2021.

Vancouver:

Χαριτίδης �. Πειραματική και αριθμητική μελέτη συγκολλητών συνδέσμων μεταξύ διαφορετικών υλικών. [Internet] [Thesis]. University of Patras; Πανεπιστήμιο Πατρών; 2015. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/10442/hedi/39376.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Χαριτίδης �. Πειραματική και αριθμητική μελέτη συγκολλητών συνδέσμων μεταξύ διαφορετικών υλικών. [Thesis]. University of Patras; Πανεπιστήμιο Πατρών; 2015. Available from: http://hdl.handle.net/10442/hedi/39376

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

14. Cristina Alves Pereira. Avaliação comparativa pelos testes micropush-out e micro-cisalhamento da resistência adesiva de restaurações diretas de resina composta usando diferentes sistemas adesivos.

Degree: 2008, Federal University of Uberlândia

URL: http://www.bdtd.ufu.br//tde_busca/arquivo.php?codArquivo=2511

►

The bond strength may be influenced by the different composition and manipulation of the adhesive systems, the dentin structure and the method of evaluation. After… (more)

▼

The bond strength may be influenced by the different composition and manipulation of the adhesive systems, the dentin structure and the method of evaluation. After exposure of the occlusal dentin surface 160 third human molars were divided in 2 groups (n=80) for the micropush-out (μPBS) and microshear (μSBS) bond strength tests. For the μPBS, 4 groups (n=20) were obtained and a tapered cavity (2,5x1,5x1,0mm) was prepared on the dentin surface and restored with composite resin after treatment using different adhesive systems: Adper Single Bond, Adper Scotchbond MP, Prompt-L-Pop, AdheSE. After water storage for 24 hours, from 10 teeth per group, 1 oclusal slice (1,5 0,3mm) was obtained from each tooth, and the restoration submitted to vertical load. The other 10 teeth were storage for 12 months and then submitted to the same procedure. For the μSBS another 80 teeth were divided into 4 groups (n=20), the dentin surface was treated using the same adhesive systems and composite resin cylinders (1x1mm) were constructed and polymerized in a single increment onto the bonding area. Ten specimens were tested after 24 hours and 10 after 12 months of water storage. The null hypotheses were that (1) the composition and manipulation of the adhesive systems, (2) the water storage and (3) the method of evaluation might influence the bond strength of direct composite resin restorations. Results of ANOVA did not show significant difference for the storage time factor (p=.6343), but there was difference between the methods (p<.0001), with higher values for the μPBS test, and among the adhesive systems (p<.0001). The Adper Scotchbond and AdheSE systems presented higher bond strength values. Adhesive x method (p=.0002) and adhesive x method x time (p=.0037) interactions were significant, with different behaviors from adhesive systems within the method and time of evaluation. Conclusions were that the storage time might be not sufficient to result in alterations and that adhesive systems composition and manipulation might influence the bond strength. The μPBS test, presented the higher bond values with lower coefficient of variation, indicating more consistence than the μSBS test, besides of reproduce more faithfully clinical conditions.

Dentre os vários fatores que podem influenciar a resistência adesiva de diferentes sistemas adesivos à dentina estão as suas diferentes composições e manipulação, o substrato dentinário e a produção do teste. Após exposição da superfície dentinária oclusal 160 molares humanos foram divididos em 2 grupos (n=80) para os testes de micropush-out e micro-cisalhamento. Para o teste de micropush-out a superfície dentinária de 4 grupos (n=20) recebeu uma cavidade tronco-cônica (2,0x1,5x1,0mm) restaurada com resina composta após aplicação do sistema adesivo: Adper Single Bond (SLB); Adper Scotchbond MP (SMP); Prompt-L-Pop (PLP); Adhe SE (ADH). Após armazenagem em água por 24 horas, a partir de 10 dentes de cada grupo, foi obtida uma fatia oclusal (1,5 0,3mm) por dente cuja…

Advisors/Committee Members: Osmir Batista de Oliveira Junior, Roberto Elias Campos, Luiz Carlos Gonçalves.

Subjects/Keywords: Restaurações diretas; Sistemas adesivos; Resistência adesiva; Dentina; ODONTOLOGIA; Materiais dentários; Composite direct; Adhesive; Storage; Strength adhesive; Dentin

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pereira, C. A. (2008). Avaliação comparativa pelos testes micropush-out e micro-cisalhamento da resistência adesiva de restaurações diretas de resina composta usando diferentes sistemas adesivos. (Thesis). Federal University of Uberlândia. Retrieved from http://www.bdtd.ufu.br//tde_busca/arquivo.php?codArquivo=2511

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pereira, Cristina Alves. “Avaliação comparativa pelos testes micropush-out e micro-cisalhamento da resistência adesiva de restaurações diretas de resina composta usando diferentes sistemas adesivos.” 2008. Thesis, Federal University of Uberlândia. Accessed January 18, 2021. http://www.bdtd.ufu.br//tde_busca/arquivo.php?codArquivo=2511.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pereira, Cristina Alves. “Avaliação comparativa pelos testes micropush-out e micro-cisalhamento da resistência adesiva de restaurações diretas de resina composta usando diferentes sistemas adesivos.” 2008. Web. 18 Jan 2021.

Vancouver:

Pereira CA. Avaliação comparativa pelos testes micropush-out e micro-cisalhamento da resistência adesiva de restaurações diretas de resina composta usando diferentes sistemas adesivos. [Internet] [Thesis]. Federal University of Uberlândia; 2008. [cited 2021 Jan 18]. Available from: http://www.bdtd.ufu.br//tde_busca/arquivo.php?codArquivo=2511.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pereira CA. Avaliação comparativa pelos testes micropush-out e micro-cisalhamento da resistência adesiva de restaurações diretas de resina composta usando diferentes sistemas adesivos. [Thesis]. Federal University of Uberlândia; 2008. Available from: http://www.bdtd.ufu.br//tde_busca/arquivo.php?codArquivo=2511

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

15. Jönsson, Frida. Adhesive bonding between dissimilar materials .

Degree: Chalmers tekniska högskola / Institutionen för industri- och materialvetenskap, 2020, Chalmers University of Technology

URL: http://hdl.handle.net/20.500.12380/301727

► This master thesis is done at a Defense & Security Company in cooperation with the department of Industrial and Materials Science at Chalmers University of… (more)

▼ This master thesis is done at a Defense & Security Company in cooperation with the department of Industrial and Materials Science at Chalmers University of Technology. This thesis is an evaluation of adhesive bonds between composite to composite, and composite to metal in different environments. The different environments are simulated only by temperature variations to represent environmental conditions of land, sea and air. The evaluation is done through a literature study and experimental mechanical testing. The literature study resulted in a theoretical background that comprises knowledge about composites, adhesive joints and surface treatments prior to adhesive bonding. The experimental part of the evaluation is done to determine the tensile shear strength of a single-lap bond, with a test method similar to ISO4578. The material combinations tested are mostly based on usability for the Defense & Security Company, resulting in tests of glass fiber reinforced polymer (GFRP) adhered to GFRP, GFRP adhered to aluminium and aramid fiber reinforced polymer (AFRP) adhered to aluminium. All test series were bonded with the adhesive film, FM 300-2M. All combinations were tested in room temperature and at elevated temperature. GFRP to aluminium and AFRP to aluminium were tested after pre-conditioning by temperature cycling. Sandblasting was used as surface treatment for all the test samples. Production of the test samples and the adhesion process were done externally at Elitkomposit AB and the tensile shear testing was conducted at the Defense & Security Company. When bonding GFRP to GFRP the results showed that mechanical joints could be replaced with single-lap adhesive bonds. However, the results from the dissimilar test series were promising as the shear strength was high, but the it varied within each test series. Therefore, the mechanical joints can not be replaced based on these results. Further evaluation and testing are recommended in order to replace mechanical joints with adhesive bonds when dissimilar material are used.

Subjects/Keywords: Adhesive bonding; tensile shear testing; single-lap; adhesive bond; GFRP; AFRP; Aluminium 6082-T6; Polymer Matrix Composite; Fiber reinforced composite; thermal cycling

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jönsson, F. (2020). Adhesive bonding between dissimilar materials . (Thesis). Chalmers University of Technology. Retrieved from http://hdl.handle.net/20.500.12380/301727

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jönsson, Frida. “Adhesive bonding between dissimilar materials .” 2020. Thesis, Chalmers University of Technology. Accessed January 18, 2021. http://hdl.handle.net/20.500.12380/301727.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jönsson, Frida. “Adhesive bonding between dissimilar materials .” 2020. Web. 18 Jan 2021.

Vancouver:

Jönsson F. Adhesive bonding between dissimilar materials . [Internet] [Thesis]. Chalmers University of Technology; 2020. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/20.500.12380/301727.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jönsson F. Adhesive bonding between dissimilar materials . [Thesis]. Chalmers University of Technology; 2020. Available from: http://hdl.handle.net/20.500.12380/301727

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

16. Hernandez Baltodano, Dany Arnoldo [UNESP]. Strain rate dependent behavior of composite materials and epoxy.

Degree: 2017, Universidade Estadual Paulista

URL: http://hdl.handle.net/11449/150330

►

Considerando as amplas aplicações de materiais compósitos para melhorar estruturas de obras em engenharia, é importante estudar a dependência do comportamento do material em função… (more)

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Considerando as amplas aplicações de materiais compósitos para melhorar estruturas de obras em engenharia, é importante estudar a dependência do comportamento do material em função da velocidade de deformação aplicada aos materiais compósitos e aos epóxis adesivos. Propriedades mecânicas do material Sikacarbodur S512 e materiais adesivos mostram comportamentos diferentes quando analisados utilizando diferentes razões de deformação. Os resultados obtidos mostram que o Sikacarbodur S512 não é um material dúctil devido à ausência de capacidade de experimentar deformações inelásticas porque o domínio elástico domina seu comportamento mecânico. Os aditivos epóxis não têm domínio plástico considerável, e o intervalo visco elástico domina o seu comportamento mecânico sob forças de tração. As análises de microscopia eletrônica de varredura (MEV) das amostras de Sikacarbodur S512 mostram que o comportamento de fratura acontece na zona de interface (zona de contato entre as fibras e a resina) que é afetada pela concentração de tensões e propagações de trincas. As análises de MEV antes e depois dos testes de tração das amostras de Sikadur 30 e Sikadur 330 mostram que ambos os materiais possuem uma fase contínua e uma fase granular. Nas duas resinas as ligações covalentes são quebradas durante os testes embora o Sikadur 30 tem o comportamento mais crítico. O Sikadur 330 tem melhor comportamento mecânico do que o sikadur 30 e esse melhor comportamento é mais bem entendido quando compara-se suas deformações de ruptura em tensão e suas capacidades para absorver energia.

Considering the wide application range of composite materials for retrofitting civil engineering structures, it is found important to study the strain rate dependent behavior of both composite materials and some structural adhesive epoxies. Mechanical properties of Sikacarbodur S512 and adhesives bonding materials show different behavior when analyzed at different strain rates. Moreover, it was found that Sikacarbodur S512 is not a ductile material since it cannot sustain inelastic deformation because an elastic range governs its mechanical behavior. Epoxies adhesive do not have a significant plastic range; a viscoelastic range governs their main mechanical behavior under tensile loads. Sikacarbodur S512 analyses using scanning electron microscopy (SEM) shows that the fracture behavior is addressed by the interphase zone (contact zone between fiber and resin) which is affected by tensile stress concentration and cracks propagations. SEM analyses before and after tensile tests of both Sikadur 30 and Sikadur 330 shows that they have a continuous phase and a granular phase. In both resins, covalent bonds are broken, however sikadur 30 shows the most critical behavior. Sikadur 330 has better mechanical behavior under uniaxial tensile test than sikadur 30, and this better behavior is realized when their tensile strain to break and absorbed energy capacity are compared.

Advisors/Committee Members: Orlandi, Marcelo Ornaghi [UNESP], Universidade Estadual Paulista (UNESP).

Subjects/Keywords: Composite materials; Epoxy adhesive; Scanning electron microscopy; Materiais compostos; Adesivos epóxis; Microscopia eletrônica de varredura

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hernandez Baltodano, D. A. [. (2017). Strain rate dependent behavior of composite materials and epoxy. (Thesis). Universidade Estadual Paulista. Retrieved from http://hdl.handle.net/11449/150330

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hernandez Baltodano, Dany Arnoldo [UNESP]. “Strain rate dependent behavior of composite materials and epoxy.” 2017. Thesis, Universidade Estadual Paulista. Accessed January 18, 2021. http://hdl.handle.net/11449/150330.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hernandez Baltodano, Dany Arnoldo [UNESP]. “Strain rate dependent behavior of composite materials and epoxy.” 2017. Web. 18 Jan 2021.

Vancouver:

Hernandez Baltodano DA[. Strain rate dependent behavior of composite materials and epoxy. [Internet] [Thesis]. Universidade Estadual Paulista; 2017. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/11449/150330.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hernandez Baltodano DA[. Strain rate dependent behavior of composite materials and epoxy. [Thesis]. Universidade Estadual Paulista; 2017. Available from: http://hdl.handle.net/11449/150330

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

17. Alessandra Paschoalino Machado dos Santos. AVALIAÇÃO IN VITRO DO SELAMENTO MARGINAL DE RESTAURAÇÕES CLASSE II COM RESINA COMPOSTA UTILIZANDO-SE DIFERENTES SISTEMAS ADESIVOS: COMPARAÇÃO DO EFEITO DE DUAS SOLUÇÕES.

Degree: 2010, Universidade Federal de Juiz de Fora

URL: http://www.bdtd.ufjf.br/tde_busca/arquivo.php?codArquivo=891

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Neste estudo foi avaliado in vitro o selamento marginal em restaurações classe II com resina composta utilizando-se três sistemas adesivos por meio de comparação da… (more)

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Neste estudo foi avaliado in vitro o selamento marginal em restaurações classe II com resina composta utilizando-se três sistemas adesivos por meio de comparação da penetração de dois evidenciadores. Sessenta molares humanos hígidos foram utilizados, nos quais foram realizadas cavidades tipo slot vertical com término gengival abaixo da junção esmalte-cemento. Os dentes foram divididos aleatoriamente em três grupos, de acordo com o sistema adesivo a ser empregado (n=20): Grupo A Sistema adesivo Scotchbond Multi Purpose, Grupo B Sistema adesivo Adper Easy One e Grupo C Sistema adesivo Clearfil SE Bond. As cavidades foram restauradas com resina composta nanoparticulada Filtek Z350, sendo a mesma inserida através da técnica incremental. Os corpos de prova foram submetidos à termociclagem de 1500 ciclos a temperaturas de 5C + 2C e 55C+ 2C, em banhos alternados de 30 segundos cada. Posteriormente, cada grupo foi subdividido em dois subgrupos, de acordo com o evidenciador a ser utilizado. Os corpos de prova do subgrupo 1 ficaram imersos por 24 horas em solução de nitrato de prata amoniacal, em seguida, imersos em revelador radiográfico por 8 horas sob luz fluorescente. No subgrupo 2, os corpos de prova ficaram imersos em solução de azul de metileno a 2% por 24 horas. Foram seccionados no sentido mesio-distal e a microinfiltração marginal foi avaliada com lupa estereoscópica por dois observadores. Os resultados foram submetidos a análise estatística pelo teste não-paramétrico de Kruskal Wallis, e análise de Variância de Mann-Whitney (p=0,05). Pode-se concluir que: a) Nenhum sistema adesivo testado foi significativamente eficaz no selamento marginal em restaurações classe II com resina composta; b)Houve maior penetração do evidenciador azul de metileno a 2%, indicando que o 15 tipo de material utilizado pode influenciar nos resultado da pesquisa; c) Outros estudos deverão ser realizados com o intuito se verificar qual a melhor concentração e o melhor tempo de imersão para os evidenciadores utilizados nos testes de microinfiltração marginal

Here we evaluated in vitro the marginal sealing of class II restoration with composite resin using three different adhesive systems by comparing the penetration of two solutions evidenced. Sixty human molars were used, in which were made cavities as vertical slots with gingival ending below the enamel-cementum junction. The teeth were randomly divided into three groups according to the adhesive system to be used (n=20): Group A: Adhesive System Sctchbond Multi Purpose, Group B: Adhesive System Adper Easy One and Group C: Adhesive System Clearfil SE Bond. The cavities were restored with composite resin Filtek Z350, witch was introduced in the cavity by an incremental technique. The bodies of evidence were submitted to term cycles of 1500 cycles of 5C + 2C e 55C+ 2C of temperature in alternated baths of 30 seconds each. After, each group was divided into two subgroups according to the solutions evidenced to be used. The body of evidence from the subgroup 1 was kept immersed in the contrast…

Advisors/Committee Members: Fabíola Pessôa Pereira Leite, Henrique Nogueira Reis, Marília Nalon Pereira.

Subjects/Keywords: CLINICA ODONTOLOGICA; adesivos dentinários; microinfiltração; resina composta; evidenciadores; adhesive systems; microleakage; composite resin; solutions evidenced

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Santos, A. P. M. d. (2010). AVALIAÇÃO IN VITRO DO SELAMENTO MARGINAL DE RESTAURAÇÕES CLASSE II COM RESINA COMPOSTA UTILIZANDO-SE DIFERENTES SISTEMAS ADESIVOS: COMPARAÇÃO DO EFEITO DE DUAS SOLUÇÕES. (Thesis). Universidade Federal de Juiz de Fora. Retrieved from http://www.bdtd.ufjf.br/tde_busca/arquivo.php?codArquivo=891

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Santos, Alessandra Paschoalino Machado dos. “AVALIAÇÃO IN VITRO DO SELAMENTO MARGINAL DE RESTAURAÇÕES CLASSE II COM RESINA COMPOSTA UTILIZANDO-SE DIFERENTES SISTEMAS ADESIVOS: COMPARAÇÃO DO EFEITO DE DUAS SOLUÇÕES.” 2010. Thesis, Universidade Federal de Juiz de Fora. Accessed January 18, 2021. http://www.bdtd.ufjf.br/tde_busca/arquivo.php?codArquivo=891.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Santos, Alessandra Paschoalino Machado dos. “AVALIAÇÃO IN VITRO DO SELAMENTO MARGINAL DE RESTAURAÇÕES CLASSE II COM RESINA COMPOSTA UTILIZANDO-SE DIFERENTES SISTEMAS ADESIVOS: COMPARAÇÃO DO EFEITO DE DUAS SOLUÇÕES.” 2010. Web. 18 Jan 2021.

Vancouver:

Santos APMd. AVALIAÇÃO IN VITRO DO SELAMENTO MARGINAL DE RESTAURAÇÕES CLASSE II COM RESINA COMPOSTA UTILIZANDO-SE DIFERENTES SISTEMAS ADESIVOS: COMPARAÇÃO DO EFEITO DE DUAS SOLUÇÕES. [Internet] [Thesis]. Universidade Federal de Juiz de Fora; 2010. [cited 2021 Jan 18]. Available from: http://www.bdtd.ufjf.br/tde_busca/arquivo.php?codArquivo=891.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Santos APMd. AVALIAÇÃO IN VITRO DO SELAMENTO MARGINAL DE RESTAURAÇÕES CLASSE II COM RESINA COMPOSTA UTILIZANDO-SE DIFERENTES SISTEMAS ADESIVOS: COMPARAÇÃO DO EFEITO DE DUAS SOLUÇÕES. [Thesis]. Universidade Federal de Juiz de Fora; 2010. Available from: http://www.bdtd.ufjf.br/tde_busca/arquivo.php?codArquivo=891

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Univerzitet u Beogradu

18. Ležaja, Maja M., 1984-. Kompoziti i adhezivi sa sintetskim hidroksiapatitnim puniocima i hidroksiapatitni inserti : ispitivanje mehaničkih svojstava i kvaliteta adhezivne veze.

Degree: Stomatološki fakultet, 2016, Univerzitet u Beogradu

URL: https://fedorabg.bg.ac.rs/fedora/get/o:10884/bdef:Content/get

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Stomatološke nauke - Restaurativna odontologija / Dental Sciences - Restorative Dentistry

Kalcijum hidroksiapatit (HAP) čini osnovnu mineralnu komponentu čvrstih zubnih tkiva pa kao takav predstavlja… (more)

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Stomatološke nauke - Restaurativna odontologija / Dental Sciences - Restorative Dentistry

Kalcijum hidroksiapatit (HAP) čini osnovnu mineralnu komponentu čvrstih zubnih tkiva pa kao takav predstavlja poţeljnu komponentu materijala koji izgubljena zubna tkiva treba da nadoknade. U eri estetske stomatologije najzastupljeniji restaurativni materijali su kompoziti adhezivno vezani za tvrda zubna tkiva. Osnovni nedostatak kompozitnih materijala i dalje predstavlja polimerizaciona kontrakcija, koja uzrokuje stvaranje napona u materijalu i dovodi do nastanka mikropukotine na njihovom spoju sa zubnim tkivima. Cilj ove doktorske disertacije bio je da se ispita uticaj HAP punilaca u kompozitima i adhezivima na njihova mehanička svojstva i vezu sa dentinom, kao i pravljenje i testiranje inserata na bazi HAP-a kao potencijalnih dentinskih zamenika. Testiran je uticaj zamene dela staklenih punilaca jednim od pet oblika HAP punilaca (nanočestičnim, mikročestičnim: sferama sa i bez dopiranja silicijumom i trakama sa i bez dopiranja silicijumom), na stepen konverzije, tvrdoću po Vikersu, savojnu čvrstoću, savojni moduo elastičnosti, kompresivnu čvrstoću i kompresivni moduo elastičnosti eksperimentalnih kompozita, inicijalno i nakon „starenja‟. Optimalan maseni udeo punilaca na bazi HAP-a odreĎen je pilot studijama. Osim toga, dva oblika nanočestičnog HAP-a (u obliku nano-iglica i nano-traka) u udelima 0,5-1,5 mas% su u obliku suspenzije dodavana u komercijalne adhezive, nakon čega je testom makrosmicanja ispitana jačina veze, a skenirajućom elektronskom mikroskopijom morfologija interakcije dobijenih adheziva sa dentinom. U trećem delu studije ispitivan je uticaj primene inserata na bazi HAP-a (standardizovani inleji) na zapreminsku kontrakciju i pomeranje materijala metodom korelacije digitalnih slika sa korišćenjem sistema dve kamere za trodimenzionalno merenje, kod restauracija koje su činili inserti u kombinaciji sa univerzalnim ili tečnim kompozitom, odnosno smolom modifikovanim glas jonomer cementom. TakoĎe je merena jačina veze HAP inserata sa pomenutim materijalima. HAP punioci svojim mehaničkim svojstvima mogu da pariraju najčešće korišćenim staklenim puniocima, pri čemu su HAP sfere pozitivno uticale na mehanička svojstva testiranih materijala, kao inicijalno, tako i nakon „starenja‟ u Henkovom rastvoru tokom 4 nedelje...

Advisors/Committee Members: Miletić, Vesna, 1975-.

Subjects/Keywords: hydroxyapatite; composite; adhesive; insert; mechanical properties; bond strength to dentin; volumetric shrinkage

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ležaja, Maja M., 1. (2016). Kompoziti i adhezivi sa sintetskim hidroksiapatitnim puniocima i hidroksiapatitni inserti : ispitivanje mehaničkih svojstava i kvaliteta adhezivne veze. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:10884/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ležaja, Maja M., 1984-. “Kompoziti i adhezivi sa sintetskim hidroksiapatitnim puniocima i hidroksiapatitni inserti : ispitivanje mehaničkih svojstava i kvaliteta adhezivne veze.” 2016. Thesis, Univerzitet u Beogradu. Accessed January 18, 2021. https://fedorabg.bg.ac.rs/fedora/get/o:10884/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ležaja, Maja M., 1984-. “Kompoziti i adhezivi sa sintetskim hidroksiapatitnim puniocima i hidroksiapatitni inserti : ispitivanje mehaničkih svojstava i kvaliteta adhezivne veze.” 2016. Web. 18 Jan 2021.

Vancouver:

Ležaja, Maja M. 1. Kompoziti i adhezivi sa sintetskim hidroksiapatitnim puniocima i hidroksiapatitni inserti : ispitivanje mehaničkih svojstava i kvaliteta adhezivne veze. [Internet] [Thesis]. Univerzitet u Beogradu; 2016. [cited 2021 Jan 18]. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:10884/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ležaja, Maja M. 1. Kompoziti i adhezivi sa sintetskim hidroksiapatitnim puniocima i hidroksiapatitni inserti : ispitivanje mehaničkih svojstava i kvaliteta adhezivne veze. [Thesis]. Univerzitet u Beogradu; 2016. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:10884/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waterloo

19. Trinidad, Ephraim. Evaluation of Hybrid Electrically Conductive Adhesives.

Degree: 2016, University of Waterloo

URL: http://hdl.handle.net/10012/10991

► An electrically conductive adhesive (ECA) is a composite material acting as a conductive paste, which consists of a thermoset loaded with conductive fillers (typically silver… (more)

▼ An electrically conductive adhesive (ECA) is a composite material acting as a conductive paste, which consists of a thermoset loaded with conductive fillers (typically silver (Ag)). Many works that focus on this line of research were successful at making strides to improve its main weakness of low electrical conductivity. Most research focused on developing better silver fillers and co-fillers, or utilizing conductive polymers to improve its electrical conductivity, however, most of these works are carried out on small scale. In this work, we aim to produce larger quantities of hybrid ECA to successfully test its properties. Industry is interested in materials with superior physical properties. As such, rheological behavior and mechanical strength were explored as it has been theoretically hinted that incorporation of exfoliated graphene within the composite could impact those factors listed in a positive manner. In the first step of this project, pre-treated sodium dodecyl sulfate (SDS)-decorated graphene’s rheological properties were examined. An epoxy resin diglycidylether of bisphenol-A (DGEBA) was the main polymer used for this study: a well-known material that can behave either as a shear-thinning or shear-thickening material depending on the supplier. We showed how composites that contain graphene (Gr) had higher viscosities than ones that contained SDS decorated graphene Gr(s). Not only did we confirm that surfactant was a key factor in the decrease of viscosity, but we also report how Gr and Gr(s) had a special effect that suppresses the intrinsic shear thickening behavior of epoxy resin at weight concentrations (wt%) higher than 0.5 wt%. The results showed that Gr(s) is not only beneficial in terms of improving the conductivity of conventional ECAs, but it also acts as a solid lubricant that decreases the viscosity of the composite paste at higher weight concentrations. In the second step of the project, pre-treated SDS decorated graphene’s mechanical properties were examined. In specific, its lap-shear strength (LSS) as well as the effect of residual solvent when present in our hybrid ECA system were studied in order to follow up on the thermal results obtained from a previous study. We showed that our initial suspicion was correct as the LSS did decrease for all of the solvent-assisted formulations that contained Gr(s) ranging from 66 to 84%, however, we were not able to tell whether or not that decrease was caused by lower crosslinking density. Instead, we uncovered another reason for this decrease: bubble formation during the curing step. This suspicion was confirmed qualitatively through light microscopy and quantitatively through optical profilometry, where we present an increase in surface roughness for the solvent-assisted samples. Furthermore, by using SEM, we also confirmed that this bubble formation extends throughout the entire bulk material rather than just at the interface. Lastly, we investigated whether the use of solvent to assist in the mixing process significantly improves the…

Subjects/Keywords: Adhesive; Viscosity; Electrical Conductivity; Lap-Shear Strength; Graphene; Surfactant; PEDOT:PSS; Silver; Composite; Modulus

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Trinidad, E. (2016). Evaluation of Hybrid Electrically Conductive Adhesives. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/10991

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Trinidad, Ephraim. “Evaluation of Hybrid Electrically Conductive Adhesives.” 2016. Thesis, University of Waterloo. Accessed January 18, 2021. http://hdl.handle.net/10012/10991.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Trinidad, Ephraim. “Evaluation of Hybrid Electrically Conductive Adhesives.” 2016. Web. 18 Jan 2021.

Vancouver:

Trinidad E. Evaluation of Hybrid Electrically Conductive Adhesives. [Internet] [Thesis]. University of Waterloo; 2016. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/10012/10991.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Trinidad E. Evaluation of Hybrid Electrically Conductive Adhesives. [Thesis]. University of Waterloo; 2016. Available from: http://hdl.handle.net/10012/10991

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

The Ohio State University

20. McFall, Bruce Daniel. An Adaptive Method of Joining Composite Structural Members.

Degree: MS, Mechanical Engineering, 2014, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1405435976

► In an era where there are growing concerns about the continued use of fossil fuels with approximately 71% of the petroleum used in the United… (more)

Subjects/Keywords: Mechanical Engineering; Mechanics; Systems Design; Transportation; Carbon-Fiber; Composite; Joint; Hybrid; Adhesive; Mechanical; Structural

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

McFall, B. D. (2014). An Adaptive Method of Joining Composite Structural Members. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1405435976

Chicago Manual of Style (16^th Edition):

McFall, Bruce Daniel. “An Adaptive Method of Joining Composite Structural Members.” 2014. Masters Thesis, The Ohio State University. Accessed January 18, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1405435976.

MLA Handbook (7^th Edition):

McFall, Bruce Daniel. “An Adaptive Method of Joining Composite Structural Members.” 2014. Web. 18 Jan 2021.

Vancouver:

McFall BD. An Adaptive Method of Joining Composite Structural Members. [Internet] [Masters thesis]. The Ohio State University; 2014. [cited 2021 Jan 18]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1405435976.

Council of Science Editors:

McFall BD. An Adaptive Method of Joining Composite Structural Members. [Masters Thesis]. The Ohio State University; 2014. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1405435976

University of Waterloo

21. Trimiño, Luis. Epoxy Adhesives, Correlation between Strain Whitening and Damage Using a Macroscopic Optical Method.

Degree: 2019, University of Waterloo

URL: http://hdl.handle.net/10012/14493

► The success of lightweight automotive multi-material assemblies depends on selecting appropriate joining techniques that can provide the expected day-to-day operational strength while delivering occupant protection… (more)

▼ The success of lightweight automotive multi-material assemblies depends on selecting appropriate joining techniques that can provide the expected day-to-day operational strength while delivering occupant protection during crash scenarios and long-term durability performance. Epoxy-based adhesives provide an important joining method to increase structural stiffness and enable the joining of dissimilar materials for multi-material assemblies. However, the design of adhesive joints requires mechanical data to support integration in vehicles and computer aided engineering design. The objective of this research was to address a deficit in the identification and quantification of damage in epoxy adhesive materials under applied loading, which is critical for constitutive models that can be used in the numerical representation of structural epoxy adhesive materials. Three structural epoxy adhesive formulations: a non-toughened single-part epoxy (EC-2214, 3M); a two-part toughened epoxy (DP-460NS, 3M); and a high toughness single-part epoxy (SA-9850, 3M); were tested to failure under tension and shear loading conditions over a range of strain rates (0.002–100 s-1). The measured mechanical data was implemented in constitutive models using two approaches (cohesive zone model and continuum solid element formulation) and verified using finite element simulations of the experiments. This study provided understanding regarding the mechanical response of structural adhesives to loading and the relationship between shear and tensile strength, differences in non-recoverable mechanical response, and the mode of failure for different adhesive formulations (localization and brittle failure, development of strain whitening and ductile failure). Adhesives strength increased with increases in strain rate for all three materials, and limitations in current modeling approaches such as the use of a von Mises yield surface and assuming coupling of strain rate effects between different modes of loading, were identified. Importantly, strain whitening was observed on the surface of the specimens during testing, and exhibited varying intensity and distribution depending on the strain rate and material type. A paucity of damage data for structural adhesives was identified in the literature. This information is necessary to define or enhance failure criteria in finite element simulations, which in turn can improve the physical representation of adhesive materials in numerical simulations. A follow-on study investigated the viability of using Vickers microhardness measurements as a forensic technique to quantify damage in structural adhesives. The study used tensile specimens machined from bulk adhesive and tested to failure over a range of strain rates (0.002-100 s-1). Pre-test reference microhardness measurements were compared to post-test hardness measurements along the gauge length of the test specimens. The changes in microhardness were used to indirectly measure damage in the materials. In general, for toughened epoxies, the damage extended…

Subjects/Keywords: Epoxy adhesives; Damage; Strain whitening; Microhardness; Optical measurement; Microscopy; Load-unload; Composite construction; Composite materials; Adhesive joints; Epoxy compounds

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Trimiño, L. (2019). Epoxy Adhesives, Correlation between Strain Whitening and Damage Using a Macroscopic Optical Method. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/14493

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Trimiño, Luis. “Epoxy Adhesives, Correlation between Strain Whitening and Damage Using a Macroscopic Optical Method.” 2019. Thesis, University of Waterloo. Accessed January 18, 2021. http://hdl.handle.net/10012/14493.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Trimiño, Luis. “Epoxy Adhesives, Correlation between Strain Whitening and Damage Using a Macroscopic Optical Method.” 2019. Web. 18 Jan 2021.

Vancouver:

Trimiño L. Epoxy Adhesives, Correlation between Strain Whitening and Damage Using a Macroscopic Optical Method. [Internet] [Thesis]. University of Waterloo; 2019. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/10012/14493.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Trimiño L. Epoxy Adhesives, Correlation between Strain Whitening and Damage Using a Macroscopic Optical Method. [Thesis]. University of Waterloo; 2019. Available from: http://hdl.handle.net/10012/14493

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

22. Simon, Pavel. Progresivní styčníky FRP kompozitů konstrukcí dopravní infrastruktury: Joints from FRP composite intended for transport infrastructure.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/137005

► This thesis deals with junction points of construction used in transport infrastructure, which are made of FRP composite material. Main focus is on bonded joints.… (more)

Subjects/Keywords: FRP kompozit; GFRP kompozit; styčníky; lepené spoje; šroubované spoje; FRP composite; GFRP composite; joints; adhesive bonded joints; bolted joints

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Simon, P. (2018). Progresivní styčníky FRP kompozitů konstrukcí dopravní infrastruktury: Joints from FRP composite intended for transport infrastructure. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/137005

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Simon, Pavel. “Progresivní styčníky FRP kompozitů konstrukcí dopravní infrastruktury: Joints from FRP composite intended for transport infrastructure.” 2018. Thesis, Brno University of Technology. Accessed January 18, 2021. http://hdl.handle.net/11012/137005.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Simon, Pavel. “Progresivní styčníky FRP kompozitů konstrukcí dopravní infrastruktury: Joints from FRP composite intended for transport infrastructure.” 2018. Web. 18 Jan 2021.

Vancouver:

Simon P. Progresivní styčníky FRP kompozitů konstrukcí dopravní infrastruktury: Joints from FRP composite intended for transport infrastructure. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/11012/137005.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Simon P. Progresivní styčníky FRP kompozitů konstrukcí dopravní infrastruktury: Joints from FRP composite intended for transport infrastructure. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/137005

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

23. Drubi Filho, Brahim. Resistência ao cisalhamento de bráquetes ortodônticos após envelhecimento artificial acelerado.

Degree: Mestrado, Reabilitação Oral, 2011, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/58/58131/tde-07022012-144833/ ;

►

O propósito deste estudo foi comparar a resistência ao cisalhamento (RC) e o índice de remanescente adesivo (IRA) após Envelhecimento Artificial Acelerado (EAA) de bráquetes… (more)

▼

O propósito deste estudo foi comparar a resistência ao cisalhamento (RC) e o índice de remanescente adesivo (IRA) após Envelhecimento Artificial Acelerado (EAA) de bráquetes ortodônticos metálicos fixados com compósitos autopolimerizável (Concise Ortodôntico - CS, 3M Unitek) e fotoativado (Transbond Plus Color Change - TPCC, 3M Unitek) com diferentes tratamentos de superfície do esmalte. Foram selecionados 60 pré-molares humanos recém extraídos, que tiveram suas raízes embutidas em resina acrílica ativada quimicamente de forma que a face vestibular ficasse perpendicular ao plano horizontal. Estas foram limpas com pedra pomes e água por 10 segundos, lavadas e secas. Os dentes foram separados aleatoriamente em 5 grupos (n=12), segundo o tipo de tratamento de superfície do esmalte, e do compósito utilizado para fixação dos bráquetes: Grupo I - ácido fosfórico a 37% (Dental Gel, Dentsply) e CS; Grupo II - ácido fosfórico a 37% + Primer e CS; Grupo III - ácido fosfórico a 37% e TPCC; Grupo IV - ácido fosfórico a 37% + XT Primer (3M Unitek) e TPCC; e Grupo V Transbond Plus Self Etching Primer - SEP (3M Unitek) e TPCC. Após 24h da colagem dos bráquetes, metade das amostras de cada grupo (n=6) foi submetida ao EAA por 960 horas. Todas as amostras foram submetidas ao ensaio de resistência ao cisalhamento com cinzel em máquina universal de ensaios (DL 200, EMIC) na velocidade de 0,5 mm/min. Após a descolagem dos bráquetes, causada pelo teste de resistência ao cisalhamento, o IRA foi avaliado em lupa (10X) e quantificado a partir de escore (0-3). Os dados foram analisados estatisticamente (2-way ANOVA, Bonferroni, p<0,05) e verificou-se que não houve diferença estatisticamente significante entre os Grupos em função do EAA (p>0,05). Quando comparados os sistemas adesivos utilizados, verificou-se que o Grupo II sem EAA, apresentou a maior média de RC, resultado estatisticamente significante (p<0,05) em relação aos grupos III e V, que apresentou a menor média de RC. Quanto ao IRA, todos os grupos sem EAA apresentaram maior frequência do índice 3. Com EAA, houve aumento de frequência dos índices 1 e 2. Concluiu-se que o EAA não influenciou a RC de bráquetes ao dente, mas diminuiu a área de remanescente adesivo sobre o dente.

The purpose of this study was to compare the shear bond strength (SBS) and the adhesive remnant index (ARI) after Accelerated Artificial Aging (AAA) of metal orthodontic brackets bonded with self-polymerizing (Concise Ortodôntico - CS, 3M Unitek) and light activated (Transbond Plus Color Change - TPCC, 3M Unitek) composites, to enamel with different surface treatments. Sixty recently-extracted human premolars were selected. Their roots were embedded in chemically activated acrylic resin so that the vestibular face was perpendicular to the horizontal plane. They were cleaned with pumice stone and water for 10 seconds, washed and dried. The teeth were randomly separated into 5 groups (n=12), according to the type of enamel surface treatment, and composite used for bracket bonding: Group I - 37% phosphoric…

Advisors/Committee Members: Souza, Fernanda de Carvalho Panzeri Pires de.

Subjects/Keywords: Accelerated Artificial Aging; Adhesive Systems; Bráquetes ortodônticos; Composite; Compósito; Envelhecimento artificial acelerado; Orthodontic Brackets; Sistemas adesivos

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Drubi Filho, B. (2011). Resistência ao cisalhamento de bráquetes ortodônticos após envelhecimento artificial acelerado. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/58/58131/tde-07022012-144833/ ;

Chicago Manual of Style (16^th Edition):

Drubi Filho, Brahim. “Resistência ao cisalhamento de bráquetes ortodônticos após envelhecimento artificial acelerado.” 2011. Masters Thesis, University of São Paulo. Accessed January 18, 2021. http://www.teses.usp.br/teses/disponiveis/58/58131/tde-07022012-144833/ ;.

MLA Handbook (7^th Edition):

Drubi Filho, Brahim. “Resistência ao cisalhamento de bráquetes ortodônticos após envelhecimento artificial acelerado.” 2011. Web. 18 Jan 2021.

Vancouver:

Drubi Filho B. Resistência ao cisalhamento de bráquetes ortodônticos após envelhecimento artificial acelerado. [Internet] [Masters thesis]. University of São Paulo; 2011. [cited 2021 Jan 18]. Available from: http://www.teses.usp.br/teses/disponiveis/58/58131/tde-07022012-144833/ ;.

Council of Science Editors:

Drubi Filho B. Resistência ao cisalhamento de bráquetes ortodônticos após envelhecimento artificial acelerado. [Masters Thesis]. University of São Paulo; 2011. Available from: http://www.teses.usp.br/teses/disponiveis/58/58131/tde-07022012-144833/ ;

24. Satthumnuwong, Purimpat. Approche expérimentale et numérique de la rupture des assemblages collés de composites stratifiés : Experimental and numerical study of the strength of adhesively bonded composite laminates.

Degree: Docteur es, Mécanique et énergétique, 2011, Université de Bourgogne

URL: http://www.theses.fr/2011DIJOS052

►

L’assemblage des matériaux composites par collage présente des avantages incontestés par rapport à d’autres méthodes telles que le boulonnage ou le rivetage. Cependant, la principale difficulté… (more)

▼

L’assemblage des matériaux composites par collage présente des avantages incontestés par rapport à d’autres méthodes telles que le boulonnage ou le rivetage. Cependant, la principale difficulté que rencontrent les concepteurs est celle de la prévision du niveau et du mode de rupture de ces collages. Dans le cas des composites stratifiés, un des facteurs influents sur le comportement des joints collés est la séquence d'empilement, mais les travaux présentés dans la littérature ne séparent pas les effets globaux (modification des rigidités de membrane et de flexion) et les effets locaux (orientation des plis au contact de la colle). La présente étude s'intéresse à la caractérisation de ces effets dans le cas de joints de type simple recouvrement de stratifiés carbone/epoxy. Pour isoler les effets locaux, des séquences d'empilement spécifiques quasi isotropes quasi homogènes sont utilisées. A propriétés de raideur globale égales, des différences de résistance de plus de 30% sont observées selon les séquences considérées. Les essais réalisés avec un stratifié symétrique anisotrope en flexion montrent également que la raideur en flexion joue un rôle important dans le comportement des joints. Les modèles analytiques utilisés prédisent les effets globaux avec une bonne précision mais sont inappropriés lorsque des phénomènes locaux se produisent. Une approche par éléments finis permet de prendre en compte ces phénomènes, en modélisant explicitement les plis au contact de la colle et en rendant possible le décollement interlaminaire de ces plis à l'aide d'un modèle de zone cohésive. Cette modélisation est mise en œuvre pour réaliser une étude paramétrique de la géométrie du joint et pour produire une enveloppe de rupture en fonction de la direction de sollicitation.

Adhesive bonding of composite materials has undeniable advantages over other methods such as bolting or riveting. However, one of the difficulties encountered by designers is the prediction of the failure level and failure mode of these adhesively bonded assemblies. In the case of composite laminates, one of the factors acting on the bonded joint behaviour is the stacking sequence, but works presented in the literature do not separate global effects (membrane and bending stiffness modification) and local effect (ply orientation near the adhesive layer). This study deals with the characterization of such effects in the case of single lap joints of carbon/epoxy laminates. In order to isolate the local effects, specific quasi isotropic quasi homogeneous stacking sequences are used. When stiffness properties are maintained constant, strength variations of more than 30 % are observed. Tests performed with a symmetric laminate with bending anisotropy show that the bending stiffness plays also an important role in the joint behaviour. Closed form models are able to predict global effects with a good accuracy but are inappropriate when local effects occur. The use of finite element models can account for these phenomena, by explicitly modelling the laminate plies near…

Advisors/Committee Members: Aivazzadeh, Shahram (thesis director).

Subjects/Keywords: Collage; Composites stratifiés; Séquence d'empilement; Délaminage; Éléments finis; Adhesive bonding; Composite laminates; Stacking sequence; Delamination; Finite element; 620.192

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Satthumnuwong, P. (2011). Approche expérimentale et numérique de la rupture des assemblages collés de composites stratifiés : Experimental and numerical study of the strength of adhesively bonded composite laminates. (Doctoral Dissertation). Université de Bourgogne. Retrieved from http://www.theses.fr/2011DIJOS052

Chicago Manual of Style (16^th Edition):

Satthumnuwong, Purimpat. “Approche expérimentale et numérique de la rupture des assemblages collés de composites stratifiés : Experimental and numerical study of the strength of adhesively bonded composite laminates.” 2011. Doctoral Dissertation, Université de Bourgogne. Accessed January 18, 2021. http://www.theses.fr/2011DIJOS052.

MLA Handbook (7^th Edition):

Satthumnuwong, Purimpat. “Approche expérimentale et numérique de la rupture des assemblages collés de composites stratifiés : Experimental and numerical study of the strength of adhesively bonded composite laminates.” 2011. Web. 18 Jan 2021.

Vancouver:

Satthumnuwong P. Approche expérimentale et numérique de la rupture des assemblages collés de composites stratifiés : Experimental and numerical study of the strength of adhesively bonded composite laminates. [Internet] [Doctoral dissertation]. Université de Bourgogne; 2011. [cited 2021 Jan 18]. Available from: http://www.theses.fr/2011DIJOS052.

Council of Science Editors:

Satthumnuwong P. Approche expérimentale et numérique de la rupture des assemblages collés de composites stratifiés : Experimental and numerical study of the strength of adhesively bonded composite laminates. [Doctoral Dissertation]. Université de Bourgogne; 2011. Available from: http://www.theses.fr/2011DIJOS052

Drexel University

25. Lei, Bin. On the Durability of Bonded Repairs to Fuselage Structures Subjected to Mechanical and Environmental Conditions.

Degree: 2018, Drexel University

URL: https://idea.library.drexel.edu/islandora/object/idea%3A8299

►

Bonded repair is one of the structural repair technologies that the aircraft industry uses to restore the strength of fuselage structures and increase the life… (more)

▼

Bonded repair is one of the structural repair technologies that the aircraft industry uses to restore the strength of fuselage structures and increase the life of an aircraft. Bonded repairs are superior to the conventional metallic fastened repairs in that the former yield a higher stiffness and lower stress concentrations and are more aerodynamically and structurally efficient. Bonded repair technology has been used to repair military aircraft for over three decades but has not been certified for repairing commercial aircraft due to the lack of sufficient performance data to support their airworthiness. Experimental work and analytical modeling of bonded repairs have also been limited to those of flat coupon specimen under ambient environmental conditions. In this study, experimental and analytical work on a full-scale curved fuselage panel with various bonded repairs is conducted to investigate their durability and integrity. The experimental work was carried out using the Federal Aviation Administration's Full-Scale Aircraft Structural Test Evaluation and Research fixture. The objectives are to characterize the durability and fatigue performance of boron/epoxy (B/Ep) and aluminum bonded repairs under a simulated service load condition over the design service life of the airplane and to investigate tools for evaluating and monitoring the repair integrity over the life of the part. During all test phases, damage formation and growth of cracks and disbonds were monitored and recorded using a structural health monitoring system and several nondestructive inspection methods. In addition, strains in the vicinity of the repair patches were continuously recording using strain gages and the digital image correlation method. Experimental results indicated that the bonded repairs are effective to reduce the fatigue crack growth rate. A linear elastic fracture mechanics based analytical model is developed to predict the growth rates of fatigue cracks in the curved panel repaired by bonded patches. The unique feature of this model is that, by using a fuselage-dependent geometric correction factor and incorporating the bonded repair theory, this model can be applied to predict the growth of a crack under any type of bonded repair in a given fuselage. The model has been validated by comparing the predicted crack growth rate results with that obtained experimentally.

Ph.D., Mechanical Engineering and Mechanics – Drexel University, 2018

Advisors/Committee Members: Awerbuch, Jonathan, Tan, Tein-Min, College of Engineering.

Subjects/Keywords: Mechanical engineering; Adhesive joints – Repairing; Airframes – Fatigue – Research; Composite materials – Mechanical properties; Finite element method; Fracture mechanics – Research

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lei, B. (2018). On the Durability of Bonded Repairs to Fuselage Structures Subjected to Mechanical and Environmental Conditions. (Thesis). Drexel University. Retrieved from https://idea.library.drexel.edu/islandora/object/idea%3A8299

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lei, Bin. “On the Durability of Bonded Repairs to Fuselage Structures Subjected to Mechanical and Environmental Conditions.” 2018. Thesis, Drexel University. Accessed January 18, 2021. https://idea.library.drexel.edu/islandora/object/idea%3A8299.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lei, Bin. “On the Durability of Bonded Repairs to Fuselage Structures Subjected to Mechanical and Environmental Conditions.” 2018. Web. 18 Jan 2021.

Vancouver:

Lei B. On the Durability of Bonded Repairs to Fuselage Structures Subjected to Mechanical and Environmental Conditions. [Internet] [Thesis]. Drexel University; 2018. [cited 2021 Jan 18]. Available from: https://idea.library.drexel.edu/islandora/object/idea%3A8299.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lei B. On the Durability of Bonded Repairs to Fuselage Structures Subjected to Mechanical and Environmental Conditions. [Thesis]. Drexel University; 2018. Available from: https://idea.library.drexel.edu/islandora/object/idea%3A8299

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Bristol

26. Paul, Aakash. Understanding the effects of environmental conditions on the failure of bonded joints.

Degree: PhD, 2020, University of Bristol

URL: http://hdl.handle.net/1983/64aef3e9-77a2-4790-b4ae-117b4f397c2e

► Composites are widely utilised in aerospace structures, especially for the newer generation designs, due to their advanced properties such as high strength to weight ratios… (more)

▼ Composites are widely utilised in aerospace structures, especially for the newer generation designs, due to their advanced properties such as high strength to weight ratios and durability. Understanding the failure of bonded joints with composite adherends is key for designers, particularly within the aerospace industry, for both a safe design and meeting the aircraft regulation standards. This thesis investigates both experimentally and numerically the effects of environmental conditions on the strength of Double Lap Joints (DLJ) with composite adherends, for different geometrical and loading conditions. The environmental conditions tested are at Room Temperature Dry (RTD), Hot Temperature Dry (HTD) and Hot Temperature Wet (HTW). The mechanical properties of both the adhesive and composite are characterised at these environmental conditions. DLJ tests for pristine, impacted and specimens with artificial defects are tested. Analytical models using simple calculations are used to determine the failure modes. Numerical model using Cohesive Zone Models (CZM) are used to predict and further understand the DLJ behaviour through sensitivity analyses. During the characterisation tests, it is found that Mode I fracture energy increases whereas Mode II decreases with increasing temperature and moisture for both adhesive and composite. A distinct change in failure mechanism is also found with the influence of temperature and moisture. The effects of overlap length, adherend and adhesive thickness on the pristine DLJ strength at different environmental conditions are analysed and discussed. Following the pristine tests, the residual tensile strength after through-thickness impact and the effects of artificial defects (disbond) on the strength of DLJ are also studied. The impact is applied at RTD and followed by tensile tests at different environmental conditions. Disbond cases are represented by inserting an artificial defect in the bondline during the manufacturing process and is followed by tests at different environmental conditions. For all DLJ, increasing temperature and moisture had a significant effect on the strength, failure mechanisms and fracture surface.

Subjects/Keywords: Adhesive joints; Composite materials; Environmental Conditions; Double Lap Joints; Failure prediction; Fracture mechanics; Static Loading; Impact; Failure

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Paul, A. (2020). Understanding the effects of environmental conditions on the failure of bonded joints. (Doctoral Dissertation). University of Bristol. Retrieved from http://hdl.handle.net/1983/64aef3e9-77a2-4790-b4ae-117b4f397c2e

Chicago Manual of Style (16^th Edition):

Paul, Aakash. “Understanding the effects of environmental conditions on the failure of bonded joints.” 2020. Doctoral Dissertation, University of Bristol. Accessed January 18, 2021. http://hdl.handle.net/1983/64aef3e9-77a2-4790-b4ae-117b4f397c2e.

MLA Handbook (7^th Edition):

Paul, Aakash. “Understanding the effects of environmental conditions on the failure of bonded joints.” 2020. Web. 18 Jan 2021.

Vancouver:

Paul A. Understanding the effects of environmental conditions on the failure of bonded joints. [Internet] [Doctoral dissertation]. University of Bristol; 2020. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/1983/64aef3e9-77a2-4790-b4ae-117b4f397c2e.

Council of Science Editors:

Paul A. Understanding the effects of environmental conditions on the failure of bonded joints. [Doctoral Dissertation]. University of Bristol; 2020. Available from: http://hdl.handle.net/1983/64aef3e9-77a2-4790-b4ae-117b4f397c2e

Universitat de Girona

27. Renart Canalias, Jordi. Desarrollo de un nuevo ensayo experimental para la evaluación de la calidad de uniones adhesivas entre componentes estructurales de composite para la indústria aeronáutica.

Degree: Departament d'Enginyeria Mecànica i de la Construcció Industrial, 2010, Universitat de Girona

URL: http://hdl.handle.net/10803/296679

► The use of composite materials in the aircraft industry has been increasing in recent years due to their application in structural parts. To reduce the… (more)

▼ The use of composite materials in the aircraft industry has been increasing in recent years due to their application in structural parts. To reduce the production costs of these components the join between skins and stiffeners is made by means of an adhesive. In order to guarantee that the bonded joint fulfils the structural requirements, experimental tests on specimens are done from the first development tasks and throughout the production stages. In the present work, an analysis of the experimental test methods to determine the quality of bonded joints has been performed - the quality of bonded joints depends on the quality of the surface preparation, the adhesive properties and the compatibility between the adhesive and the adherents. The work focuses on two objectives: the improvement of the double cantilever beam test, and the development of an alternative method of bonded joint characterization based on driving a wedge into the adhesive layer (Wedge Driven Test, WDT). In the double cantilever beam test, a mechanical fixture tool has been designed and a data reduction method for stick-slip crack propagation has been developed. On the other hand, the alternative test method such as the DCB, focuses on determining the fracture toughness in mode I of the adhesive joint, by means of introducing a wedge inside the specimen at a constant speed rate. To prove the sensitivity of the WDT to the quality of the adhesive joint, a series of testing campaigns has been performed over 4 adhesive joint configurations (combining 2 adhesives and 2 adherents). Moreover, deliberately produced bad surface preparations have been tested. From the test results, it has been observed that the driven wedge test exhibits an equivalent behaviour to the double cantilever beam test and has a similar level of sensitivity to the quality of the bonded joint. Advisors/Committee Members: [email protected] (authoremail), false (authoremailshow), Costa i Balanzat, Josep (director), true (authorsendemail).

Subjects/Keywords: Composite materials; Composites; Compòsits; Aircraft industry; Industria aeronautica; Adhesive joints; Uniones adhesivas; Unions adhesives; Wedge; Cuña; Cunya; Delamination; Delaminación; Delaminació; 629

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Renart Canalias, J. (2010). Desarrollo de un nuevo ensayo experimental para la evaluación de la calidad de uniones adhesivas entre componentes estructurales de composite para la indústria aeronáutica. (Thesis). Universitat de Girona. Retrieved from http://hdl.handle.net/10803/296679

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Renart Canalias, Jordi. “Desarrollo de un nuevo ensayo experimental para la evaluación de la calidad de uniones adhesivas entre componentes estructurales de composite para la indústria aeronáutica.” 2010. Thesis, Universitat de Girona. Accessed January 18, 2021. http://hdl.handle.net/10803/296679.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Renart Canalias, Jordi. “Desarrollo de un nuevo ensayo experimental para la evaluación de la calidad de uniones adhesivas entre componentes estructurales de composite para la indústria aeronáutica.” 2010. Web. 18 Jan 2021.

Vancouver:

Renart Canalias J. Desarrollo de un nuevo ensayo experimental para la evaluación de la calidad de uniones adhesivas entre componentes estructurales de composite para la indústria aeronáutica. [Internet] [Thesis]. Universitat de Girona; 2010. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/10803/296679.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Renart Canalias J. Desarrollo de un nuevo ensayo experimental para la evaluación de la calidad de uniones adhesivas entre componentes estructurales de composite para la indústria aeronáutica. [Thesis]. Universitat de Girona; 2010. Available from: http://hdl.handle.net/10803/296679

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

28. Bahillo Varela, José. Sustitutos de Amalgama para la obtención de un composite que nos permita obturar las cavidades de manera rápida y sencilla.

Degree: Departament d'Odontologia, 2015, Universitat Internacional de Catalunya

URL: http://hdl.handle.net/10803/315650

► La Odontología conservadora ha dado varios cambios sustanciales, el ultimo se llama "odontología adhesiva". Los avances en la tecnología adhesiva han simplificado los procedimientos dentales,… (more)

Subjects/Keywords: Dental Adhesion; Amalgam Sustitutes; Marginal Adaptation; ETCH; Dual-cure composite; Bulk technique; Bond degradation; Adhesive rehabilitation; Odontologia; 616.3

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bahillo Varela, J. (2015). Sustitutos de Amalgama para la obtención de un composite que nos permita obturar las cavidades de manera rápida y sencilla. (Thesis). Universitat Internacional de Catalunya. Retrieved from http://hdl.handle.net/10803/315650

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bahillo Varela, José. “Sustitutos de Amalgama para la obtención de un composite que nos permita obturar las cavidades de manera rápida y sencilla.” 2015. Thesis, Universitat Internacional de Catalunya. Accessed January 18, 2021. http://hdl.handle.net/10803/315650.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bahillo Varela, José. “Sustitutos de Amalgama para la obtención de un composite que nos permita obturar las cavidades de manera rápida y sencilla.” 2015. Web. 18 Jan 2021.

Vancouver:

Bahillo Varela J. Sustitutos de Amalgama para la obtención de un composite que nos permita obturar las cavidades de manera rápida y sencilla. [Internet] [Thesis]. Universitat Internacional de Catalunya; 2015. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/10803/315650.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bahillo Varela J. Sustitutos de Amalgama para la obtención de un composite que nos permita obturar las cavidades de manera rápida y sencilla. [Thesis]. Universitat Internacional de Catalunya; 2015. Available from: http://hdl.handle.net/10803/315650

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Washington

29. Singhal, Taru. Weak bond detection in composites using solitary waves.

Degree: 2015, University of Washington

URL: http://hdl.handle.net/1773/33549

► A composite material is composed of fibers embedded in a matrix and is called Fiber Reinforced Plastic (FRP). Particularly, Carbon Fiber Reinforced Plastic (CFRP) has… (more)

▼ A composite material is composed of fibers embedded in a matrix and is called Fiber Reinforced Plastic (FRP). Particularly, Carbon Fiber Reinforced Plastic (CFRP) has carbon fiber as the reinforcement. It has a high strength-to-weight ratio and is not less susceptible to fatigue or corrosion compared to metallic materials. Therefore, composite materials like CFRP find applications in aerospace industry due to their low weight and advanced mechanical properties. For large scale composite structures, smaller parts often need to be connected together. The connection of these parts could be done either by mechanical joints such as fasteners or by gluing them together using adhesives. This research focuses on bonded composite structures. A prevailing problem in bonded joints is the indeterminate nature of the strength of the adhesive bond. Low strength bonds, i.e., weak bonds, are very difficult to detect and may become the cause of catastrophic failure. Hence, this work aims to develop a technique based on highly nonlinear waves called solitary waves to detect weak bonds. Nonlinear solitary waves can be generated in a 1-D chain of granular crystals, which consists of discrete particles having nonlinear interactions. Solitary waves are high energy packets, which maintain a finite spatial width while traveling. These waves, traveling in the granular chain, can be transmitted into the specimen by making direct contact with the chain. The reflected wave pattern from the specimen can give information about the localized stiffness of the specimen. In this study, two kinds of CFRP specimens are fabricated - one with pristine bond and the other with a weak bond. For making a weak bond specimen, mold release agent is used to coat the surface of CFRP laminate prior to bonding. This coating acts as an impurity at the bondline and is an example of poor surface preparation. First, standard tests such as the three point bending and the end notched flexure tests are conducted to demonstrate that the strength of the bond is reduced due to the presence of the release agent coating. Further, impact test by solitary wave injection is conducted to cause weak bonds to develop delamination and obtain the response of solitary waves reflected from the specimens. We study the reflected wave characteristics for weak bond detection. Two cases are considered; in the first case, two specimens - pristine and weak bond samples, both without having an initial crack - are tested. In the second case, two specimens - pristine and weak bond samples, both with an initial crack - are tested. The results differentiate the weak bond with the pristine bond based on reflected wave characteristics. This study shows promising results indicating the potential of solitary wave-based detection of weak bond for hot spot monitoring of composite-based structures. Advisors/Committee Members: Yang, Jinkyu (advisor).

Subjects/Keywords: Adhesive bond; Composite structure; Kissing bond; Low velocity impact; Solitary wave; Weak bond; Aerospace engineering; aeronautics and astronautics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Singhal, T. (2015). Weak bond detection in composites using solitary waves. (Thesis). University of Washington. Retrieved from http://hdl.handle.net/1773/33549

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Singhal, Taru. “Weak bond detection in composites using solitary waves.” 2015. Thesis, University of Washington. Accessed January 18, 2021. http://hdl.handle.net/1773/33549.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Singhal, Taru. “Weak bond detection in composites using solitary waves.” 2015. Web. 18 Jan 2021.

Vancouver:

Singhal T. Weak bond detection in composites using solitary waves. [Internet] [Thesis]. University of Washington; 2015. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/1773/33549.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Singhal T. Weak bond detection in composites using solitary waves. [Thesis]. University of Washington; 2015. Available from: http://hdl.handle.net/1773/33549

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

30. LEE CHON KIAT. A Study of Composite Wet-Layup Bonded Repair for Aircraft.

Degree: 2013, National University of Singapore

URL: http://scholarbank.nus.edu.sg/handle/10635/37885

Subjects/Keywords: Composite; wet-layup; bonded repair; aircraft; adhesive; finite element

Record Details Similar Records Cite « Share

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

KIAT, L. C. (2013). A Study of Composite Wet-Layup Bonded Repair for Aircraft. (Thesis). National University of Singapore. Retrieved from http://scholarbank.nus.edu.sg/handle/10635/37885

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

KIAT, LEE CHON. “A Study of Composite Wet-Layup Bonded Repair for Aircraft.” 2013. Thesis, National University of Singapore. Accessed January 18, 2021. http://scholarbank.nus.edu.sg/handle/10635/37885.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

KIAT, LEE CHON. “A Study of Composite Wet-Layup Bonded Repair for Aircraft.” 2013. Web. 18 Jan 2021.

Vancouver:

KIAT LC. A Study of Composite Wet-Layup Bonded Repair for Aircraft. [Internet] [Thesis]. National University of Singapore; 2013. [cited 2021 Jan 18]. Available from: http://scholarbank.nus.edu.sg/handle/10635/37885.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

KIAT LC. A Study of Composite Wet-Layup Bonded Repair for Aircraft. [Thesis]. National University of Singapore; 2013. Available from: http://scholarbank.nus.edu.sg/handle/10635/37885

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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