subject:(Honeycomb)

University of Toronto

1. Moes, Calvin. Melt-stretched Thermoplastic Honeycomb Sandwich Panels.

Degree: 2016, University of Toronto

►

Melt-stretched honeycombs were developed as a novel polymer honeycomb for structural applications. A fabrication process was devised in which a molten polymer is expanded between… (more)

Subjects/Keywords: Honeycomb; Thermoplastic; 0794

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APA (6^th Edition):

Moes, C. (2016). Melt-stretched Thermoplastic Honeycomb Sandwich Panels. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/75817

Chicago Manual of Style (16^th Edition):

Moes, Calvin. “Melt-stretched Thermoplastic Honeycomb Sandwich Panels.” 2016. Masters Thesis, University of Toronto. Accessed April 11, 2021. http://hdl.handle.net/1807/75817.

MLA Handbook (7^th Edition):

Moes, Calvin. “Melt-stretched Thermoplastic Honeycomb Sandwich Panels.” 2016. Web. 11 Apr 2021.

Vancouver:

Moes C. Melt-stretched Thermoplastic Honeycomb Sandwich Panels. [Internet] [Masters thesis]. University of Toronto; 2016. [cited 2021 Apr 11]. Available from: http://hdl.handle.net/1807/75817.

Council of Science Editors:

Moes C. Melt-stretched Thermoplastic Honeycomb Sandwich Panels. [Masters Thesis]. University of Toronto; 2016. Available from: http://hdl.handle.net/1807/75817

Texas A&M University

2. Wang, Ruoshui. Design and Analysis of Honeycomb Structures with Advanced Cell Walls.

Degree: PhD, Materials Science and Engineering, 2016, Texas A&M University

URL: http://hdl.handle.net/1969.1/174295

► Honeycomb structures are widely used in engineering applications. This work consists of three parts, in which three modified honeycombs are designed and analyzed. The objectives… (more)

▼ Honeycomb structures are widely used in engineering applications. This work consists of three parts, in which three modified honeycombs are designed and analyzed. The objectives are to obtain honeycomb structures with improved specific stiffness and specific buckling resistance while considering the manufacturing feasibility. The objective of the first part is to develop analytical models for general case honeycombs with non-linear cell walls. Using spline curve functions, the model can describe a wide range of 2-D periodic structures with nonlinear cell walls. The derived analytical model is verified by comparing model predictions with other existing models, finite element analysis (FEA) and experimental results. Parametric studies are conducted by analytical calculation and finite element modeling to investigate the influences of the spline waviness on the homogenized properties. It is found that, comparing to straight cell walls, spline cell walls have increased out-of-plane buckling resistance per unit weight, and the extent of such improvement depends on the distribution of the spline’s curvature. The second part of this research proposes a honeycomb with laminated composite cell walls, which offer a wide selection of constituent materials and improved specific stiffness. Analytical homogenization is established and verified by FEA comparing the mechanical responses of a full-detailed honeycomb and a solid cuboid assigned with the calculated homogenization properties. The results show that the analytical model is accurate at a small computational cost. Parametric studies reveal nonlinear relationships between the ply thickness and the effective properties, based on which suggestions are made for property optimizations. The third part studies honeycomb structures with perforated cell walls. The homogenized properties of this new honeycomb are analytically modeled and investigated by finite element modeling. It is found that comparing to conventional honeycombs, honeycombs with perforated cell walls demonstrate enhanced in-plane stiffness, out-of-plane bending rigidity, out-of-plane compressive buckling stress, approximately the same out-of-plane shear buckling strength, and reduced out-of-plane stiffness. For the future design, empirical formulas, based on finite element results and expressed as functions of the perforation size, are derived for the mechanical properties and verified by mechanical tests conducted on a series of 3D printed perforated honeycomb specimens. Advisors/Committee Members: Zhang, Xinghang (advisor), Wang, Jyhwen (advisor), Hartwig, Karl Ted (committee member), Benzerga, Amine (committee member).

Subjects/Keywords: Honeycomb; Composite; Finite element

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APA (6^th Edition):

Wang, R. (2016). Design and Analysis of Honeycomb Structures with Advanced Cell Walls. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/174295

Chicago Manual of Style (16^th Edition):

Wang, Ruoshui. “Design and Analysis of Honeycomb Structures with Advanced Cell Walls.” 2016. Doctoral Dissertation, Texas A&M University. Accessed April 11, 2021. http://hdl.handle.net/1969.1/174295.

MLA Handbook (7^th Edition):

Wang, Ruoshui. “Design and Analysis of Honeycomb Structures with Advanced Cell Walls.” 2016. Web. 11 Apr 2021.

Vancouver:

Wang R. Design and Analysis of Honeycomb Structures with Advanced Cell Walls. [Internet] [Doctoral dissertation]. Texas A&M University; 2016. [cited 2021 Apr 11]. Available from: http://hdl.handle.net/1969.1/174295.

Council of Science Editors:

Wang R. Design and Analysis of Honeycomb Structures with Advanced Cell Walls. [Doctoral Dissertation]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/174295

3. Montoya Macias , Pablo Andres. ESTUDIO DE LAS PROPIEDADES BAJO IMPACTOS A BAJA VELOCIDAD DE UN HONEYCOMB CON REFUERZO INTERNO .

Degree: 2014, Universidad de los Andes

URL: http://documentodegrado.uniandes.edu.co/documentos/200823822_fecha_2014_06_27_hora_23_55_17_parte_1.pdf;http://documentodegrado.uniandes.edu.co/documentos/200823822_fecha_2014_06_27_hora_23_55_17_parte_2.pdf

► El comportamiento dinámico de un honeycomb de aluminio es estudiado sobre tres tasas de deformación 200, 250 y 300 s-1; utilizando un Dispositivo de Impacto… (more)

Subjects/Keywords: Honeycomb Poliuretano

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APA (6^th Edition):

Montoya Macias , P. A. (2014). ESTUDIO DE LAS PROPIEDADES BAJO IMPACTOS A BAJA VELOCIDAD DE UN HONEYCOMB CON REFUERZO INTERNO . (Thesis). Universidad de los Andes. Retrieved from http://documentodegrado.uniandes.edu.co/documentos/200823822_fecha_2014_06_27_hora_23_55_17_parte_1.pdf;http://documentodegrado.uniandes.edu.co/documentos/200823822_fecha_2014_06_27_hora_23_55_17_parte_2.pdf

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):

Montoya Macias , Pablo Andres. “ESTUDIO DE LAS PROPIEDADES BAJO IMPACTOS A BAJA VELOCIDAD DE UN HONEYCOMB CON REFUERZO INTERNO .” 2014. Thesis, Universidad de los Andes. Accessed April 11, 2021. http://documentodegrado.uniandes.edu.co/documentos/200823822_fecha_2014_06_27_hora_23_55_17_parte_1.pdf;http://documentodegrado.uniandes.edu.co/documentos/200823822_fecha_2014_06_27_hora_23_55_17_parte_2.pdf.

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

MLA Handbook (7^th Edition):

Montoya Macias , Pablo Andres. “ESTUDIO DE LAS PROPIEDADES BAJO IMPACTOS A BAJA VELOCIDAD DE UN HONEYCOMB CON REFUERZO INTERNO .” 2014. Web. 11 Apr 2021.

Vancouver:

Montoya Macias PA. ESTUDIO DE LAS PROPIEDADES BAJO IMPACTOS A BAJA VELOCIDAD DE UN HONEYCOMB CON REFUERZO INTERNO . [Internet] [Thesis]. Universidad de los Andes; 2014. [cited 2021 Apr 11]. Available from: http://documentodegrado.uniandes.edu.co/documentos/200823822_fecha_2014_06_27_hora_23_55_17_parte_1.pdf;http://documentodegrado.uniandes.edu.co/documentos/200823822_fecha_2014_06_27_hora_23_55_17_parte_2.pdf.

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

Council of Science Editors:

Montoya Macias PA. ESTUDIO DE LAS PROPIEDADES BAJO IMPACTOS A BAJA VELOCIDAD DE UN HONEYCOMB CON REFUERZO INTERNO . [Thesis]. Universidad de los Andes; 2014. Available from: http://documentodegrado.uniandes.edu.co/documentos/200823822_fecha_2014_06_27_hora_23_55_17_parte_1.pdf;http://documentodegrado.uniandes.edu.co/documentos/200823822_fecha_2014_06_27_hora_23_55_17_parte_2.pdf

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

Clemson University

4. Gandhi, Ninad. FINITE ELEMENT ANALYSIS OF EFFECTIVE MECHANICAL PROPERTIES OF HIERARCHICAL HONEYCOMB STRUCTURES.

Degree: MS, Mechanical Engineering, 2015, Clemson University

URL: https://tigerprints.clemson.edu/all_theses/2216

► Honeycomb structures are widely used in engineering applications mainly due to their high strength to weight ratio. By changing the base material and geometry of… (more)

▼ Honeycomb structures are widely used in engineering applications mainly due to their high strength to weight ratio. By changing the base material and geometry of the repeating unit cell structure, target effective properties can be achieved. Hierarchical honeycomb structures are known to have enhanced mechanical properties when compared to regular honeycomb structures. Therefore, it is important to understand and quantify the mechanical properties and the variation of these properties with the presence of hierarchy. This investigation builds upon prior work and considers the mechanical properties of two dimensional hierarchical honeycomb structures. Previous research of hierarchical honeycomb structures studied replacing the homogeneous cell walls with truss lattices, or by replacing the cell walls by composite layers. Another hierarchy was examined by replacing the vertices of hexagon by smaller hexagons. However, in contrast to these previous studies, reiterated hierarchy is studied in this work, where a first order hierarchy structure is created by placing smaller honeycombs inside the conventional honeycombs such that midpoints of edges of the base level-0 honeycomb are shared vertices of the smaller level-1 honeycomb. In this work, the in-plane effective mechanical properties of these reiterated hierarchical honeycomb structures are studied with both regular and auxetic honeycombs. Effective elastic moduli and Poisson's ratio properties are determined and compared for a range of different cell wall thickness ratios between the base level-0 and smaller level-1 hierarchy. For comparisons, the mass was kept constant in all cases. Given the total mass and thickness ratio of the level-0 to level-1 hierarchy, the mass distribution is varied. The mechanical properties are determined from finite element analysis of a patch of honeycombs in both uni-axial tension and shear loading conditions. By changing the thickness ratio of level-0 to level-1 hierarchy, a nonlinear variation in mechanical properties is observed showing maximum and minimum values at specific ratios. From the results of first order regular hierarchical honeycomb structures, it can be said that for the same mass, the effective Young's modulus for thickness ratio of 0.1 between level-0 divided by level-1 is maximum and is about 1.45 times that of the zeroth order. Maximum effective shear modulus occurs for the special case with thickness ratio of zero, corresponding to a special level-1 honeycomb structure with the level-0 structure removed, and is 1.57 times that of the zeroth order. From the results of first order auxetic hierarchical honeycomb structures, it can be said that the effective relative Young's modulus, and shear modulus of first order is higher for any thickness ratio than that of the zeroth order auxetic honeycomb structure of the same mass. The maximum effective Young's modulus occurs for thickness ratio 9 and is about 2.8 times that of the zeroth order. The maximum effective shear modulus of first order structure… Advisors/Committee Members: Thompson, Lonny L, Summers, Joshua D, Li, Gang.

Subjects/Keywords: Auxetic hierarchical honeycomb structures; Effective mechanical properties of honeycomb structures; Finite element analysis; Hierarchical honeycomb structures; Honeycomb structures; Engineering

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APA (6^th Edition):

Gandhi, N. (2015). FINITE ELEMENT ANALYSIS OF EFFECTIVE MECHANICAL PROPERTIES OF HIERARCHICAL HONEYCOMB STRUCTURES. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/2216

Chicago Manual of Style (16^th Edition):

Gandhi, Ninad. “FINITE ELEMENT ANALYSIS OF EFFECTIVE MECHANICAL PROPERTIES OF HIERARCHICAL HONEYCOMB STRUCTURES.” 2015. Masters Thesis, Clemson University. Accessed April 11, 2021. https://tigerprints.clemson.edu/all_theses/2216.

MLA Handbook (7^th Edition):

Gandhi, Ninad. “FINITE ELEMENT ANALYSIS OF EFFECTIVE MECHANICAL PROPERTIES OF HIERARCHICAL HONEYCOMB STRUCTURES.” 2015. Web. 11 Apr 2021.

Vancouver:

Gandhi N. FINITE ELEMENT ANALYSIS OF EFFECTIVE MECHANICAL PROPERTIES OF HIERARCHICAL HONEYCOMB STRUCTURES. [Internet] [Masters thesis]. Clemson University; 2015. [cited 2021 Apr 11]. Available from: https://tigerprints.clemson.edu/all_theses/2216.

Council of Science Editors:

Gandhi N. FINITE ELEMENT ANALYSIS OF EFFECTIVE MECHANICAL PROPERTIES OF HIERARCHICAL HONEYCOMB STRUCTURES. [Masters Thesis]. Clemson University; 2015. Available from: https://tigerprints.clemson.edu/all_theses/2216

University of Texas – Austin

5. -6032-702X. Experimental study of impact loading on negative stiffness structures.

Degree: MSin Engineering, Mechanical Engineering, 2015, University of Texas – Austin

URL: http://hdl.handle.net/2152/31985

► This work outlines the design of a drop testing apparatus and the use of the apparatus to perform impact tests on negative stiffness honeycomb structures.… (more)

Subjects/Keywords: Negative stiffness; Honeycomb; Impact testing

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APA (6^th Edition):

-6032-702X. (2015). Experimental study of impact loading on negative stiffness structures. (Masters Thesis). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/31985

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

-6032-702X. “Experimental study of impact loading on negative stiffness structures.” 2015. Masters Thesis, University of Texas – Austin. Accessed April 11, 2021. http://hdl.handle.net/2152/31985.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

-6032-702X. “Experimental study of impact loading on negative stiffness structures.” 2015. Web. 11 Apr 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

-6032-702X. Experimental study of impact loading on negative stiffness structures. [Internet] [Masters thesis]. University of Texas – Austin; 2015. [cited 2021 Apr 11]. Available from: http://hdl.handle.net/2152/31985.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

-6032-702X. Experimental study of impact loading on negative stiffness structures. [Masters Thesis]. University of Texas – Austin; 2015. Available from: http://hdl.handle.net/2152/31985

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Anna University

6. Nagasankar P. Dynamic characteristics of fiber reinforced polymer composite with and without interleaving of polypropylene honeycomb structure;.

Degree: Dynamic characteristics of fiber reinforced polymer composite with and without interleaving of polypropylene honeycomb structure, 2015, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/49371

►

In this research work the dynamic characteristics of fiber reinforced polymer FRP composites under the influence of various factors have been investigated from the theoretical… (more)

Subjects/Keywords: Fiber reinforced polymer; honeycomb structure; Mechanical engineering; Polypropylene; Polypropylene honeycomb structure

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APA (6^th Edition):

P, N. (2015). Dynamic characteristics of fiber reinforced polymer composite with and without interleaving of polypropylene honeycomb structure;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/49371

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):

P, Nagasankar. “Dynamic characteristics of fiber reinforced polymer composite with and without interleaving of polypropylene honeycomb structure;.” 2015. Thesis, Anna University. Accessed April 11, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/49371.

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

MLA Handbook (7^th Edition):

P, Nagasankar. “Dynamic characteristics of fiber reinforced polymer composite with and without interleaving of polypropylene honeycomb structure;.” 2015. Web. 11 Apr 2021.

Vancouver:

P N. Dynamic characteristics of fiber reinforced polymer composite with and without interleaving of polypropylene honeycomb structure;. [Internet] [Thesis]. Anna University; 2015. [cited 2021 Apr 11]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/49371.

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

Council of Science Editors:

P N. Dynamic characteristics of fiber reinforced polymer composite with and without interleaving of polypropylene honeycomb structure;. [Thesis]. Anna University; 2015. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/49371

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

NSYSU

7. Hsieh, Huan-Ting. A Study on the Stiffness of Composite Honeycomb Plates.

Degree: Master, Mechanical and Electro-Mechanical Engineering, 2003, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0628103-203307

► Abstract In this thesis, the effect of the orientation of trussed honeycomb core design on the stiffness of a composite honeycomb plate is presented. A… (more)

Subjects/Keywords: Stiffness of honeycomb; Orientations; Composite honeycomb; Trussed honeycomb; FEM

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APA (6^th Edition):

Hsieh, H. (2003). A Study on the Stiffness of Composite Honeycomb Plates. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0628103-203307

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):

Hsieh, Huan-Ting. “A Study on the Stiffness of Composite Honeycomb Plates.” 2003. Thesis, NSYSU. Accessed April 11, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0628103-203307.

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

MLA Handbook (7^th Edition):

Hsieh, Huan-Ting. “A Study on the Stiffness of Composite Honeycomb Plates.” 2003. Web. 11 Apr 2021.

Vancouver:

Hsieh H. A Study on the Stiffness of Composite Honeycomb Plates. [Internet] [Thesis]. NSYSU; 2003. [cited 2021 Apr 11]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0628103-203307.

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

Council of Science Editors:

Hsieh H. A Study on the Stiffness of Composite Honeycomb Plates. [Thesis]. NSYSU; 2003. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0628103-203307

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

Anna University

8. Antony Arul Prakash M D. The static impact and vibration behaviour of frp honeycomb core sandwich composites; -.

Degree: Mechanical Engineering, 2014, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/25228

►

Sandwich structured composites are a special class of composite newlinematerials which have become very popular due to their high specific strength newlineand bending stiffness Sandwich… (more)

Subjects/Keywords: frp honeycomb core; mechanical engineering; static impact

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APA (6^th Edition):

D, A. A. P. M. (2014). The static impact and vibration behaviour of frp honeycomb core sandwich composites; -. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/25228

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):

D, Antony Arul Prakash M. “The static impact and vibration behaviour of frp honeycomb core sandwich composites; -.” 2014. Thesis, Anna University. Accessed April 11, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/25228.

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

MLA Handbook (7^th Edition):

D, Antony Arul Prakash M. “The static impact and vibration behaviour of frp honeycomb core sandwich composites; -.” 2014. Web. 11 Apr 2021.

Vancouver:

D AAPM. The static impact and vibration behaviour of frp honeycomb core sandwich composites; -. [Internet] [Thesis]. Anna University; 2014. [cited 2021 Apr 11]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/25228.

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

Council of Science Editors:

D AAPM. The static impact and vibration behaviour of frp honeycomb core sandwich composites; -. [Thesis]. Anna University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/25228

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

Queens University

9. Mansouri Birjandi, Neda. Convective Heat Transfer from a Recessed Window Covered By a Top Down – Bottom Up Single-Layer Honeycomb Blind .

Degree: Mechanical and Materials Engineering, 2015, Queens University

URL: http://hdl.handle.net/1974/13139

► Honeycomb (or cellular) Top Down–Bottom Up blinds are quite widely available. When this type of blind is closed there are two or more vertical blind… (more)

▼ Honeycomb (or cellular) Top Down–Bottom Up blinds are quite widely available. When this type of blind is closed there are two or more vertical blind portions and a series of horizontal or near-horizontal blind portions joining the vertical portions forming a series of cells. When such a blind is open the vertical portions of the blind bend decreasing the blind height. A honeycomb blind with a single column of cells in two different shapes was considered in the present study. Results have also been obtained for a Top Down-Bottom Up plane blind for comparative purposes. The effect of the dimensionless top and bottom blind openings, shape of the blind and dimensionless window recess depth on the convective heat transfer from a window to the surrounding room was numerically investigated. The case where the window is at a higher temperature than room was considered. Laminar and turbulent flow can occur over the window system for the conditions considered in this work. The numerical results were obtained using the commercial CFD finite-volume based solver FLUENT© and using the standard k-epsilon turbulence model. Some experimental tests were undertaken for a window-blind system with plane blind to validate the numerical results obtained in this work. From the results of this study it is concluded that when the blind is fully closed the mean window heat transfer rate for a case where a honeycomb blind is used is less than that for the case where a plane blind is used. However when the blind is partially open, the heat transfer rate from a window-blind system with a honeycomb blind is higher than it is for the case where a plane blind is used at high Rayleigh numbers considered. When the blind is partially open, increasing the dimensionless top blind opening or decreasing the dimensionless bottom blind opening increases the mean window Nusselt number at the higher Rayleigh numbers considered. The results indicate that the effect of the dimensionless window recess depth on the mean window Nusselt number is different in each flow regime i.e. with laminar, transitional and turbulent flow.

Subjects/Keywords: Numerical ; Experimental ; Heat transfer ; Honeycomb blind

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APA (6^th Edition):

Mansouri Birjandi, N. (2015). Convective Heat Transfer from a Recessed Window Covered By a Top Down – Bottom Up Single-Layer Honeycomb Blind . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/13139

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):

Mansouri Birjandi, Neda. “Convective Heat Transfer from a Recessed Window Covered By a Top Down – Bottom Up Single-Layer Honeycomb Blind .” 2015. Thesis, Queens University. Accessed April 11, 2021. http://hdl.handle.net/1974/13139.

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

MLA Handbook (7^th Edition):

Mansouri Birjandi, Neda. “Convective Heat Transfer from a Recessed Window Covered By a Top Down – Bottom Up Single-Layer Honeycomb Blind .” 2015. Web. 11 Apr 2021.

Vancouver:

Mansouri Birjandi N. Convective Heat Transfer from a Recessed Window Covered By a Top Down – Bottom Up Single-Layer Honeycomb Blind . [Internet] [Thesis]. Queens University; 2015. [cited 2021 Apr 11]. Available from: http://hdl.handle.net/1974/13139.

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

Council of Science Editors:

Mansouri Birjandi N. Convective Heat Transfer from a Recessed Window Covered By a Top Down – Bottom Up Single-Layer Honeycomb Blind . [Thesis]. Queens University; 2015. Available from: http://hdl.handle.net/1974/13139

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

University of Houston

10. Bratsch, Michaela 1988-. AAg2(M'xM1-x)[VO4]2: Synthesis and Structure-Property Relationships.

Degree: PhD, Chemistry, 2015, University of Houston

URL: http://hdl.handle.net/10657/1967

► This dissertation focuses on the synthesis and characterization of the AAg2(M’1 xMx)[VO4]2 series of compounds. These compounds are modifications of the parent type of compound,… (more)

▼ This dissertation focuses on the synthesis and characterization of the AAg2(M’1 xMx)[VO4]2 series of compounds. These compounds are modifications of the parent type of compound, AAg2M[VO4]2. We have investigated the following parameters: i) the charge and size of the spacer ion (A), ii) the charge, size, and spin of the magnetic cation (M), and iii) the ratio (M’:M) of the solid solution series. In this research we specifically targeted the honeycomb (1:2) and kagome (1:3) lattices for the solid solution series, AAg2(M’1-xMx)[VO4]2. This provides an opportunity to tune the magnetic lattices by varying the M-site cations. The M-site cations utilized in this research are non-magnetic cations, Mg2+, Zn2+, In3+, and the magnetic cations, Ni2+ (S = 1), Co2+ (S = 3/2), Mn2+ (S = 5/2), Fe3+ (S = 5/2), and Cr3+ (S = 3/2). These cations provided an opportunity to probe different magnetic interactions in the compounds. The A-site cations that have been studied in this research were: Rb+, K+, Ba2+, Sr2+, and Ag+. With decreasing ionic radius, from Rb+ to Ba2+ the crystal structure is P3, and for Sr2+ and Ag+ the crystal structure is C 2/c. The structure and phase purity of the compounds were confirmed by XRD measurements. SEM-EDX was used to investigate the chemical compositions, and confirm the ratio of the M’ and M cations (stoichiometry). Raman spectroscopy in combination with DFT calculations has been conducted as a local probe to monitor the environment of the [VO4]3- unit and confirms that the surrounding of the [VO4]3- is in either a 1:2 (honeycomb) or 1:3 (kagome) ratio of M’:M. The thermodynamic properties of this series were investigated. These confirmed that the cations Ni2+ and Co2+ are ferromagnetic and follow a mean field theory behavior and that Mn2+, Fe3+, and Cr3+ are antiferromagnetic. The physical properties measurements indicate the bulk magnetic properties of the compounds are in agreement with the chemical composition. Neutron diffraction measurements performed on RbAg2(In1/3Cr2/3)[VO4]2 and AgAg2Cr[VO4]2 provided further information about the magnetic behaviors of these compounds. Advisors/Committee Members: Guloy, Arnold M. (advisor), Moeller, Angela (advisor), Jacobson, Allan J. (committee member), Brgoch, Jakoah (committee member), Yang, Ding-Shyue (committee member).

Subjects/Keywords: Solid state; Kagome; Honeycomb; Triangular; Solid solutions

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APA (6^th Edition):

Bratsch, M. 1. (2015). AAg2(M'xM1-x)[VO4]2: Synthesis and Structure-Property Relationships. (Doctoral Dissertation). University of Houston. Retrieved from http://hdl.handle.net/10657/1967

Chicago Manual of Style (16^th Edition):

Bratsch, Michaela 1988-. “AAg2(M'xM1-x)[VO4]2: Synthesis and Structure-Property Relationships.” 2015. Doctoral Dissertation, University of Houston. Accessed April 11, 2021. http://hdl.handle.net/10657/1967.

MLA Handbook (7^th Edition):

Bratsch, Michaela 1988-. “AAg2(M'xM1-x)[VO4]2: Synthesis and Structure-Property Relationships.” 2015. Web. 11 Apr 2021.

Vancouver:

Bratsch M1. AAg2(M'xM1-x)[VO4]2: Synthesis and Structure-Property Relationships. [Internet] [Doctoral dissertation]. University of Houston; 2015. [cited 2021 Apr 11]. Available from: http://hdl.handle.net/10657/1967.

Council of Science Editors:

Bratsch M1. AAg2(M'xM1-x)[VO4]2: Synthesis and Structure-Property Relationships. [Doctoral Dissertation]. University of Houston; 2015. Available from: http://hdl.handle.net/10657/1967

Hong Kong University of Science and Technology

11. Yang, Meng. Bacterial behavior on honeycomb patterned surfaces.

Degree: 2013, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-62656 ; https://doi.org/10.14711/thesis-b1255095 ; http://repository.ust.hk/ir/bitstream/1783.1-62656/1/th_redirect.html

► The adhesion of bacteria to medical implants forming biofilms might lead to healthcare-associated infections. Initial bacterial adhesion is mediated by material surface properties. Therefore, control… (more)

▼ The adhesion of bacteria to medical implants forming biofilms might lead to healthcare-associated infections. Initial bacterial adhesion is mediated by material surface properties. Therefore, control of bacterial adhesion to material surfaces is important for reducing infection. Numerous researches have been devoted to the chemical and physical modification of biomaterial surfaces to control initial bacterial adhesion. However, the successful design of biomaterials for the treatment of infections remains a challenge. Surface topographic patterns of micro- or nano-scale have been effective to manipulate behavior of different types of cells. Previously, the bacterial behavior on the micro-pillar patterned surfaces has been studied in our group and confirmed that the micro-pillar pattern do have effects on the bacterial behavior. Now in this study we further fabricated a honeycomb pattern which provided a reduced continuous surface area compared with micro-pillar pattern. The honeycomb patterns on silicon substrate with characteristic dimensions varied from 0.5 μm to 10 μm were fabricated. Two typical bacteria with distinctive shapes (E.coli and S.aureus) were used as study models. After culturing the samples with bacteria, the effects of honeycomb patterns on the bacterial adhesion, growth, proliferation and viability were investigated. Experimental results show that the honeycomb topography with specific feature size around 1 μm can significantly reduce bacterial adhesion. Furthermore, the honeycomb patterns can inhibit bacterial growth and change the direction of growth when the bacterial is confined into a well. These influences may result from the physical confinement effect on bacteria. By comparing Sample_UP vs. Sample_DOWN, the adherent bacterial is much less on Sample_DOWN, but the trends of bacterial adhesion are the same and irrespective of the gravity of bacteria. In comparison with bacterial responses to pillar patterns, we found that topographic patterns with dimensions approaching to bacterial size can provide stronger physical confinement effect than others. However, the viability of the bacteria does not obviously influenced by the pillar and honeycomb topography within 24h. This study is expected to contribute to better understanding of topographic effects on bacterial behavior and healthcare-associated infections on biomaterials.

Subjects/Keywords: Bacteria ; Adhesion ; Biomedical materials ; Surfaces ; Honeycomb structures

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APA (6^th Edition):

Yang, M. (2013). Bacterial behavior on honeycomb patterned surfaces. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-62656 ; https://doi.org/10.14711/thesis-b1255095 ; http://repository.ust.hk/ir/bitstream/1783.1-62656/1/th_redirect.html

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):

Yang, Meng. “Bacterial behavior on honeycomb patterned surfaces.” 2013. Thesis, Hong Kong University of Science and Technology. Accessed April 11, 2021. http://repository.ust.hk/ir/Record/1783.1-62656 ; https://doi.org/10.14711/thesis-b1255095 ; http://repository.ust.hk/ir/bitstream/1783.1-62656/1/th_redirect.html.

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

MLA Handbook (7^th Edition):

Yang, Meng. “Bacterial behavior on honeycomb patterned surfaces.” 2013. Web. 11 Apr 2021.

Vancouver:

Yang M. Bacterial behavior on honeycomb patterned surfaces. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2013. [cited 2021 Apr 11]. Available from: http://repository.ust.hk/ir/Record/1783.1-62656 ; https://doi.org/10.14711/thesis-b1255095 ; http://repository.ust.hk/ir/bitstream/1783.1-62656/1/th_redirect.html.

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

Council of Science Editors:

Yang M. Bacterial behavior on honeycomb patterned surfaces. [Thesis]. Hong Kong University of Science and Technology; 2013. Available from: http://repository.ust.hk/ir/Record/1783.1-62656 ; https://doi.org/10.14711/thesis-b1255095 ; http://repository.ust.hk/ir/bitstream/1783.1-62656/1/th_redirect.html

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

Virginia Tech

12. Lyford, Andrew Lindquist. Failure Prediction of Honeycomb Panel Joints using Finite Element Analysis.

Degree: MS, Aerospace Engineering, 2017, Virginia Tech

URL: http://hdl.handle.net/10919/77029

► Spacecraft structures rely on honeycomb panels to provide a light weight means to support the vehicle. Honeycomb panels can carry significant load but are most… (more)

Subjects/Keywords: Adhesive; Honeycomb; Joint; Finite Element Analysis

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APA (6^th Edition):

Lyford, A. L. (2017). Failure Prediction of Honeycomb Panel Joints using Finite Element Analysis. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/77029

Chicago Manual of Style (16^th Edition):

Lyford, Andrew Lindquist. “Failure Prediction of Honeycomb Panel Joints using Finite Element Analysis.” 2017. Masters Thesis, Virginia Tech. Accessed April 11, 2021. http://hdl.handle.net/10919/77029.

MLA Handbook (7^th Edition):

Lyford, Andrew Lindquist. “Failure Prediction of Honeycomb Panel Joints using Finite Element Analysis.” 2017. Web. 11 Apr 2021.

Vancouver:

Lyford AL. Failure Prediction of Honeycomb Panel Joints using Finite Element Analysis. [Internet] [Masters thesis]. Virginia Tech; 2017. [cited 2021 Apr 11]. Available from: http://hdl.handle.net/10919/77029.

Council of Science Editors:

Lyford AL. Failure Prediction of Honeycomb Panel Joints using Finite Element Analysis. [Masters Thesis]. Virginia Tech; 2017. Available from: http://hdl.handle.net/10919/77029

Delft University of Technology

13. Khurana, Siddhant (author). Equivalent Fluid Modelling of a Honeycomb Acoustic Liner using the Acoustic Porous Medium Formulation.

Degree: 2020, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:9ae314db-b6f1-4294-a661-041b2c26114c

►

Over the past decades, numerous methods have been used to study acoustic liners through their impedance, of which numerical methods are of particular interest. Despite… (more)

▼

Over the past decades, numerous methods have been used to study acoustic liners through their impedance, of which numerical methods are of particular interest. Despite their advantages, numerical methods are bounded by certain drawbacks. One such drawback stems from the need to accurately discretize the liner geometry, which can lead to large simulation wall-clock time. Another limitation is caused by the absence of a stable and robust impedance boundary condition to account for the liner effects. With such limitations, there is a need to develop new methodologies which can effectively mimic the effects of an acoustic liner. A possible approach could be to model them as equivalent fluids. Thus, the primary objective of this project is to investigate the efficacy of the equivalent fluid approach to reproduce the liner effects. To satisfy this objective, the Acoustic Porous Medium (APM), which is an equivalent fluid formulation available in the flow-solver PowerFLOW® is employed in the current thesis. For reproducing the liner effects with an APM, two different methodologies are explored. In the first approach, the APM model parameters are derived through an inverse algorithm which uses a priori known impedance as an input and gives the corresponding model parameters as an output. In the second approach, the APM parameters are derived through the pressure drop values, measured across the liner facesheet under a steady laminar flow. With both these approaches, APM faces some limitations when compared with the reference results. The shortcoming is primarily cause by the inability of the APM formulation to correctly account for the mass reactance effects of the reference liner. Moreover, the results have also raised doubts over the use of the APM formulation for low input porosity values. Thus, some improvements are required in the current implementation of APM to improve its efficacy for reproducing the acoustic effects of liner used in this thesis.

Aerospace Engineering

Advisors/Committee Members: Avallone, F. (mentor), Casalino, D. (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Aeroacoustics; CFD; lattice boltzmann method; Honeycomb liner

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APA (6^th Edition):

Khurana, S. (. (2020). Equivalent Fluid Modelling of a Honeycomb Acoustic Liner using the Acoustic Porous Medium Formulation. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:9ae314db-b6f1-4294-a661-041b2c26114c

Chicago Manual of Style (16^th Edition):

Khurana, Siddhant (author). “Equivalent Fluid Modelling of a Honeycomb Acoustic Liner using the Acoustic Porous Medium Formulation.” 2020. Masters Thesis, Delft University of Technology. Accessed April 11, 2021. http://resolver.tudelft.nl/uuid:9ae314db-b6f1-4294-a661-041b2c26114c.

MLA Handbook (7^th Edition):

Khurana, Siddhant (author). “Equivalent Fluid Modelling of a Honeycomb Acoustic Liner using the Acoustic Porous Medium Formulation.” 2020. Web. 11 Apr 2021.

Vancouver:

Khurana S(. Equivalent Fluid Modelling of a Honeycomb Acoustic Liner using the Acoustic Porous Medium Formulation. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Apr 11]. Available from: http://resolver.tudelft.nl/uuid:9ae314db-b6f1-4294-a661-041b2c26114c.

Council of Science Editors:

Khurana S(. Equivalent Fluid Modelling of a Honeycomb Acoustic Liner using the Acoustic Porous Medium Formulation. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:9ae314db-b6f1-4294-a661-041b2c26114c

University of Texas – Austin

14. Debeau, David Alexander Robbins. 2.5D and conformal negative stiffness honeycombs under static and dynamic loading.

Degree: PhD, Mechanical Engineering, 2019, University of Texas – Austin

URL: http://dx.doi.org/10.26153/tsw/5759

► Negative stiffness honeycombs have been shown to provide nearly ideal impact mitigation with elastically recoverable configuration and mechanical behavior. This capability allows for reliable mitigation… (more)

▼ Negative stiffness honeycombs have been shown to provide nearly ideal impact mitigation with elastically recoverable configuration and mechanical behavior. This capability allows for reliable mitigation of multiple impacts, which conventional honeycombs cannot accommodate because of plastic deformation and collapse. A more in-depth characterization of the mechanical behavior of these negative stiffness honeycombs is presented. The starting point is a 2.5D configuration in which the negative stiffness honeycomb configuration is varied in-plane and extruded out-of-plane. Impact mitigation is investigated by subjecting the 2.5D honeycombs to various drop heights on a purpose-built, drop-test rig. Several embodiments of the 2.5D honeycomb are designed and tested, including nylon versus aluminum, constrained versus unconstrained, and altered configurations with different numbers of rows and columns of negative stiffness elements. While the 2.5D configuration performs well in response to in-plane loading, it is not designed to accommodate out-of-plane loading. A conformal negative stiffness honeycomb design is introduced that conforms to curved surfaces and accommodates out-of-plane loading that is not orthogonal to the load concentrator on top of the honeycomb. Quasi-static mechanical and dynamic mechanical impulse testing of the conformal honeycomb are conducted to characterize the mechanical performance of the conformal design. The final chapter includes a multi-element study that demonstrates how multiple elements perform in an assembly in a more realistic setting. A FEA framework is built to automate the simulation of the 2.5D and conformal negative stiffness honeycomb designs. The framework is built within the commercial Abaqus® FEA package using its Python scripting interface. Automating the design, meshing, loading, and boundary conditions allows for rapid design iteration. Simulations using the FEA framework are compared to experimental quasi-static, impact, and impulse tests. The conformal design was developed to be manufactured additively. The additive manufacturing process introduces sources of potentially significant geometric and material property variability that affect the performance of the honeycombs. The FEA framework is used to conduct a predictability and reliability study that incorporates several sources of variability into the analysis and returns estimates of the expected force threshold and its distribution. Advisors/Committee Members: Seepersad, Carolyn C. (advisor), Haberman, Michael R (committee member), Kovar, Desiderio (committee member), Roach, Allen (committee member).

Subjects/Keywords: Negative stiffness; Honeycomb; Impact mitigation; Additive manufacturing

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APA (6^th Edition):

Debeau, D. A. R. (2019). 2.5D and conformal negative stiffness honeycombs under static and dynamic loading. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://dx.doi.org/10.26153/tsw/5759

Chicago Manual of Style (16^th Edition):

Debeau, David Alexander Robbins. “2.5D and conformal negative stiffness honeycombs under static and dynamic loading.” 2019. Doctoral Dissertation, University of Texas – Austin. Accessed April 11, 2021. http://dx.doi.org/10.26153/tsw/5759.

MLA Handbook (7^th Edition):

Debeau, David Alexander Robbins. “2.5D and conformal negative stiffness honeycombs under static and dynamic loading.” 2019. Web. 11 Apr 2021.

Vancouver:

Debeau DAR. 2.5D and conformal negative stiffness honeycombs under static and dynamic loading. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2019. [cited 2021 Apr 11]. Available from: http://dx.doi.org/10.26153/tsw/5759.

Council of Science Editors:

Debeau DAR. 2.5D and conformal negative stiffness honeycombs under static and dynamic loading. [Doctoral Dissertation]. University of Texas – Austin; 2019. Available from: http://dx.doi.org/10.26153/tsw/5759

University of Melbourne

15. ZHANG, ZHOU. Molecular structure effects on polymeric honeycomb film formation.

Degree: 2013, University of Melbourne

URL: http://hdl.handle.net/11343/38647

► Polymeric films with uniform porous patterns and narrow pore size distributions are of great interests for variety of applications. Among currently available porous patterned films,… (more)

▼ Polymeric films with uniform porous patterns and narrow pore size distributions are of great interests for variety of applications. Among currently available porous patterned films, honeycomb films have attracted significant attention due to their rapid and facile fabrication technique, termed as the Breath Figure technique. Following its first report in 1911, the Breath Figure technique has been intensively utilised to produce hexagonal patterned porous films from polymers with various molecular structures and architectures over the past 20 years. More recently the major focus of honeycomb film formation has been directed at their possible practical applications. However, to a lesser extent, fundamental research into the nature and mechanism of honeycomb film formation has declined. This thesis aims to establish a deeper fundamental understanding of the Breath Figure process thus establishing a simple and robust approach for honeycomb formation via the exploration of critical molecular structure effects on the polymeric honeycomb film formation, including (a) a systematic study on polymer composition influence on the formation of honeycomb structures; (b) the development of highly reproducible honeycomb films on non-planar surfaces; (c) the development of efficient blending system for honeycomb film formation; and (d) a new hypothesis outlining the key factors influencing honeycomb film formation. A range of star shaped fluorinated polymers were designed and synthesised with various degrees of fluorination. The glass transition temperatures (Tg) of star polymers and the hydrophobicity of the resultant honeycomb patterned films were found to be directly related to the degree of fluorination. The pore diameter distribution and uniformity of honeycomb films were also influenced by the varying polymer molecular structures. To further investigate the fluorine effect on honeycomb film formation, a fluorinated block copolymer macroinitiator was synthesised and used to prepare both core cross-linked star (CCS) polymers and micelles, whereby the outer shell and core, respectively, were comprised of fluorinated segments. The hydrophobicity of their honeycomb films was observed to be impacted significantly by the location of the fluorine segments in each molecular structure. A limitation in the application of honeycomb films is there propensity for poor reproducibility on non-planar surfaces, often with the formation of major cracks. Previously high Tg polymers were observed to be unable to form regular porous films devoid of cracking on non-planar surfaces. As new candidates for this application, a series of fluorinated star polymers with varying Tg’s and Young’s modulus (E) were prepared and characterised. Changes in fluorination were shown to directly influence their E. It was discovered that their non-cracking honeycomb film formation on…

Subjects/Keywords: star polymer; fluorinated polymer; honeycomb film; the mechanism of honeycomb film formation

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APA (6^th Edition):

ZHANG, Z. (2013). Molecular structure effects on polymeric honeycomb film formation. (Doctoral Dissertation). University of Melbourne. Retrieved from http://hdl.handle.net/11343/38647

Chicago Manual of Style (16^th Edition):

ZHANG, ZHOU. “Molecular structure effects on polymeric honeycomb film formation.” 2013. Doctoral Dissertation, University of Melbourne. Accessed April 11, 2021. http://hdl.handle.net/11343/38647.

MLA Handbook (7^th Edition):

ZHANG, ZHOU. “Molecular structure effects on polymeric honeycomb film formation.” 2013. Web. 11 Apr 2021.

Vancouver:

ZHANG Z. Molecular structure effects on polymeric honeycomb film formation. [Internet] [Doctoral dissertation]. University of Melbourne; 2013. [cited 2021 Apr 11]. Available from: http://hdl.handle.net/11343/38647.

Council of Science Editors:

ZHANG Z. Molecular structure effects on polymeric honeycomb film formation. [Doctoral Dissertation]. University of Melbourne; 2013. Available from: http://hdl.handle.net/11343/38647

Indian Institute of Science

16. Saha, Bhaskar Prasad. Processing Of Zirconia Based Honeycombs And Evaluation Of Thermo Mechanical Properties.

Degree: PhD, Faculty of Engineering, 2010, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/818

► Ceramic cellular solids, mainly honeycombs and foams, are a novel class of composite materials where one phase is an interconnected network of solid struts or… (more)

▼ Ceramic cellular solids, mainly honeycombs and foams, are a novel class of composite materials where one phase is an interconnected network of solid struts or plates and the other one an empty phase or possibly a fluid. Honeycombs are an array of two dimensional prismatic cells whereas in foams the arrangements of cells are three dimensional polyhedral cells. Unlike solids, the properties of honeycombs are based on three major variables i.e. a) relative density (p* /p s where p* is the density of the cellular material and ps that of the solid of which it is made) b) cell wall material and c) geometry of the cells. Because of the flexibility in tailoring these variables, cellular solids can be engineered to exhibit a unique combination of mechanical and thermal properties for diversified thermostructural applications. Ceramic based honeycombs fabricated out of cordierite (2MgO.2Al2O35SiO2), mullite (3Al2O32SiO2), cordierite: mullite (2MgO.2Al2O35SiO2) with specific configurations are the leading candidates for many of the applications such as substrates for catalytic converters, molten metal filters, air heaters and heat exchangers etc. Zirconia by the virtue of its high fracture toughness and low thermal conductivity and high refractoriness is an interesting ceramic material and explored for versatile applications. However, no significant efforts have been reported to produce zirconia/alumina and their composite based honeycomb structures and also they have not been explored for their thermo-mechanical and energy absorption based applications. In the present study, looking at the possible potential applications of the honeycombs of Zirconia/alumina and their composites such as solid oxide fuel cells, high temperature filters, blast protection tiles etc., attempts are made to fabricate honeycomb structures. Chapter 1 of the thesis describes the detailed literature survey that has been carried out using advanced search packages regarding the evolution of ceramic honeycomb structures and their properties followed by the advantages of zirconia/alumina and their composites as candidate materials for targeted applications. Literature survey also covers the various processing techniques, characterization procedures with special emphasis on the thermo-mechanical properties. Chapter II describes attempts on developing an optimum scheme of processing of zirconia honeycomb which includes selection of precursor oxides, mixing of formulations, dough making based on viscosity measurements, shaping by extrusion, microwave drying, debinding and sintering to obtain the defect free monolithic structures keeping in view of the scale up possibilities. The chapter also describes a specially developed die fabrication process with innovative machining procedures. (Patent no. 198045). Sintered honeycombs were also characterized for their critical physiochemical properties. In chapter III mechanical characterization of honeycomb samples is reported after subjecting them to compression testing with varying cell channel orientation,… Advisors/Committee Members: Jayaram, Vikram (advisor).

Subjects/Keywords: Zirconia - Metallurgy; Honeycomb Fabrication; Honeycomb - Mechanical Properties; Honeycomb - Thermal Properties; Ceramic Honeycomb; Cellular Materials; Zirconia Honeycombs; Honeycombs - Processing; Cellular Honeycomb; Metallurgy

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

APA (6^th Edition):

Saha, B. P. (2010). Processing Of Zirconia Based Honeycombs And Evaluation Of Thermo Mechanical Properties. (Doctoral Dissertation). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/818

Chicago Manual of Style (16^th Edition):

Saha, Bhaskar Prasad. “Processing Of Zirconia Based Honeycombs And Evaluation Of Thermo Mechanical Properties.” 2010. Doctoral Dissertation, Indian Institute of Science. Accessed April 11, 2021. http://etd.iisc.ac.in/handle/2005/818.

MLA Handbook (7^th Edition):

Saha, Bhaskar Prasad. “Processing Of Zirconia Based Honeycombs And Evaluation Of Thermo Mechanical Properties.” 2010. Web. 11 Apr 2021.

Vancouver:

Saha BP. Processing Of Zirconia Based Honeycombs And Evaluation Of Thermo Mechanical Properties. [Internet] [Doctoral dissertation]. Indian Institute of Science; 2010. [cited 2021 Apr 11]. Available from: http://etd.iisc.ac.in/handle/2005/818.

Council of Science Editors:

Saha BP. Processing Of Zirconia Based Honeycombs And Evaluation Of Thermo Mechanical Properties. [Doctoral Dissertation]. Indian Institute of Science; 2010. Available from: http://etd.iisc.ac.in/handle/2005/818

KTH

17. Buzys, Matas. Development of a new test methodology for car-to-truck crash.

Degree: Industrial Engineering and Management (ITM), 2019, KTH

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-262654

►

Till följ av de stora skadorna som riskeras vid frontalkollision mellan personbil och lastbil, utför Scania CV AB kraschtester för att bättre kunna utveckla komponenter… (more)

▼

Till följ av de stora skadorna som riskeras vid frontalkollision mellan personbil och lastbil, utför Scania CV AB kraschtester för att bättre kunna utveckla komponenter med syfte att skydda passagerarna i personbilen. Den typ av test som denna studie bygger på utvärderar den s.k. FUP:en (engelska Front Underrun Protection). I dagsläget görs ett fullskaligt test, där en personbil avfyras in i en lastbil. Syftet med studien är att undersöka möjligheten att utveckla en förenklad test metod där endast de väsentliga komponenterna från lastbilen inkluderas, och en representativ struktur ersätter personbilen. Om möjligt kommer detta minska kostnaderna samt möjliggöra för större repeterbarhet. Tester och utvärderingar görs med hjälp av simulationer i LS-Dyna, ANSA & META, och designkoncept visualiseras i CAD-programmet CATIA V5. Resultat visar att det finns goda förutsättningar för att ersätta personbilen med en barriär av honeycomb struktur samt att lastbilen kan ersättas med en vagn där de väsentliga komponenterna fäst. Diskussioner kring simuleringarna och designen lyfter fram faktorer som visar på goda utvecklingsmöjligheter, men med betoning på det fortsatta arbetet som krävs.

Scania CV AB are developing components to prevent fatal damages during frontal collisions with passenger cars. Therefore, they need to test their assemblies and specifically FUP (Frontal Underrun Protection). Currently, a full-scale test is done in which a passenger car is launched into a truck. The purpose of this study is to examine and develop the possibility of having a simplified test procedure in which only the relevant components of the truck are included, and a representative structure replaces the car. If possible, this would reduce costs and allow for greater repeatability. Analysis and evaluations are done via finite element models using ANSA, LS-Dyna and META. The conceptual design is visualized using CATIA V5. Results show good indication that the passenger car can be replaced by a trolley with deformable barriers mounted on it and the truck can be replaced by a simplified structure with main FUP components mounted onto it. Discussions about the numerical models results and the conceptual design highlight factors that show promising possibilities, but with emphasis on the continued work that is required.

Subjects/Keywords: Crash tests; FUP; Frontal impact; Honeycomb structure; FUP; Frontalkrock; Honeycomb struktur; Kraschtest; Engineering and Technology; Teknik och teknologier

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APA (6^th Edition):

Buzys, M. (2019). Development of a new test methodology for car-to-truck crash. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-262654

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):

Buzys, Matas. “Development of a new test methodology for car-to-truck crash.” 2019. Thesis, KTH. Accessed April 11, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-262654.

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

MLA Handbook (7^th Edition):

Buzys, Matas. “Development of a new test methodology for car-to-truck crash.” 2019. Web. 11 Apr 2021.

Vancouver:

Buzys M. Development of a new test methodology for car-to-truck crash. [Internet] [Thesis]. KTH; 2019. [cited 2021 Apr 11]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-262654.

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

Council of Science Editors:

Buzys M. Development of a new test methodology for car-to-truck crash. [Thesis]. KTH; 2019. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-262654

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

NSYSU

18. Huang, Zhi-Quan. Topological phase transitions of group IV and V elements in the honeycomb structures and on substrate.

Degree: PhD, Physics, 2016, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0819116-160713

► In this dissertation, we investigated the topological phase transitions of materials in the buckled and planar honeycomb structures under isotropic strain and the eff ects… (more)

Subjects/Keywords: group IV; honeycomb structure; topological crystalline insulator; topological insulator; group V

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APA (6^th Edition):

Huang, Z. (2016). Topological phase transitions of group IV and V elements in the honeycomb structures and on substrate. (Doctoral Dissertation). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0819116-160713

Chicago Manual of Style (16^th Edition):

Huang, Zhi-Quan. “Topological phase transitions of group IV and V elements in the honeycomb structures and on substrate.” 2016. Doctoral Dissertation, NSYSU. Accessed April 11, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0819116-160713.

MLA Handbook (7^th Edition):

Huang, Zhi-Quan. “Topological phase transitions of group IV and V elements in the honeycomb structures and on substrate.” 2016. Web. 11 Apr 2021.

Vancouver:

Huang Z. Topological phase transitions of group IV and V elements in the honeycomb structures and on substrate. [Internet] [Doctoral dissertation]. NSYSU; 2016. [cited 2021 Apr 11]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0819116-160713.

Council of Science Editors:

Huang Z. Topological phase transitions of group IV and V elements in the honeycomb structures and on substrate. [Doctoral Dissertation]. NSYSU; 2016. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0819116-160713

NSYSU

19. Chou, Hsin-Lei. Study of the Structural and Electronic Properties for the Bi on decorated Si(111) surface.

Degree: Master, Physics, 2015, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0306115-234101

► The Honeycomb structure of meatal with high atomic number was predicted as a candidate which can show the topological edge state. To find the new… (more)

Subjects/Keywords: Scanning tunneling microscope; Si(111); Honeycomb; Bi; Topological insulator

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APA (6^th Edition):

Chou, H. (2015). Study of the Structural and Electronic Properties for the Bi on decorated Si(111) surface. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0306115-234101

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):

Chou, Hsin-Lei. “Study of the Structural and Electronic Properties for the Bi on decorated Si(111) surface.” 2015. Thesis, NSYSU. Accessed April 11, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0306115-234101.

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

MLA Handbook (7^th Edition):

Chou, Hsin-Lei. “Study of the Structural and Electronic Properties for the Bi on decorated Si(111) surface.” 2015. Web. 11 Apr 2021.

Vancouver:

Chou H. Study of the Structural and Electronic Properties for the Bi on decorated Si(111) surface. [Internet] [Thesis]. NSYSU; 2015. [cited 2021 Apr 11]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0306115-234101.

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

Council of Science Editors:

Chou H. Study of the Structural and Electronic Properties for the Bi on decorated Si(111) surface. [Thesis]. NSYSU; 2015. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0306115-234101

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

Universiteit Utrecht

20. Peters, J.L. Fabrication of single crystalline ultra-thin superlattices by self-assembly via oriented Fabrication of single crystalline ultra-thin superlattices by self-assembly via oriented attachment of PbTe nanocrystals.

Degree: 2014, Universiteit Utrecht

URL: http://dspace.library.uu.nl:8080/handle/1874/298252

► Oriented attachment offers new possibilities to precisely build up complex structures. In this thesis oriented attachment of PbTe and PbS is investigated on an ethylene… (more)

Subjects/Keywords: Oriented attachment; Quantum dots; Nanotechnology; self-assembly; PbTe; 2D superlattices ; honeycomb

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APA (6^th Edition):

Peters, J. L. (2014). Fabrication of single crystalline ultra-thin superlattices by self-assembly via oriented Fabrication of single crystalline ultra-thin superlattices by self-assembly via oriented attachment of PbTe nanocrystals. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/298252

Chicago Manual of Style (16^th Edition):

Peters, J L. “Fabrication of single crystalline ultra-thin superlattices by self-assembly via oriented Fabrication of single crystalline ultra-thin superlattices by self-assembly via oriented attachment of PbTe nanocrystals.” 2014. Masters Thesis, Universiteit Utrecht. Accessed April 11, 2021. http://dspace.library.uu.nl:8080/handle/1874/298252.

MLA Handbook (7^th Edition):

Peters, J L. “Fabrication of single crystalline ultra-thin superlattices by self-assembly via oriented Fabrication of single crystalline ultra-thin superlattices by self-assembly via oriented attachment of PbTe nanocrystals.” 2014. Web. 11 Apr 2021.

Vancouver:

Peters JL. Fabrication of single crystalline ultra-thin superlattices by self-assembly via oriented Fabrication of single crystalline ultra-thin superlattices by self-assembly via oriented attachment of PbTe nanocrystals. [Internet] [Masters thesis]. Universiteit Utrecht; 2014. [cited 2021 Apr 11]. Available from: http://dspace.library.uu.nl:8080/handle/1874/298252.

Council of Science Editors:

Peters JL. Fabrication of single crystalline ultra-thin superlattices by self-assembly via oriented Fabrication of single crystalline ultra-thin superlattices by self-assembly via oriented attachment of PbTe nanocrystals. [Masters Thesis]. Universiteit Utrecht; 2014. Available from: http://dspace.library.uu.nl:8080/handle/1874/298252

21. Tom, Louis-Georges. Contribution à l'étude numérique de la propagation d'un défaut de collage dans une structure sandwich Nida : Contribution to the numerical analysis of disbond growth in honeycomb core sandwich structure.

Degree: Docteur es, Génie mécanique et productique, 2014, Le Mans

URL: http://www.theses.fr/2014LEMA1036

►

SAFRAN Aircelle produit des panneaux sandwiches constitués de peaux composites collées sur une âme nid d’abeille (« Nida ») en aluminium pour des applications de… (more)

▼

SAFRAN Aircelle produit des panneaux sandwiches constitués de peaux composites collées sur une âme nid d’abeille (« Nida ») en aluminium pour des applications de nacelle de moteur d’avion. Des décollements locaux peuvent exister à l’interface peau/Nida et réduire significativement la capacité structurale de ces sandwiches. L’objectif de cette thèse entre l’ISMANS et SAFRAN Aircelle réside dans la mise en place d’une approche de type « Virtual testing » pour réduire les coûts de validation et de vérification des sandwiches possédant des décollements.L’originalité de ces travaux vient du choix de la représentation des sandwiches à travers deux familles de modèles : les modèles « âme pleine » (modélisation volumique) prévus pour une utilisation en bureau d’études et les modèles « âme creuse » (modélisation physique des clinquants) permettant d’analyser finement les mécanismes de propagation des décollements peau/Nida. Une technique de sous-structuration a été mise en oeuvre avec succès et a permis de réduire significativement les temps de calcul du modèle « âme creuse ».La mécanique de l’endommagement, avec des éléments à zone cohésive, a été choisie pour déterminer numériquement le seuil de propagation des décollements, après une étude comparative avec la mécanique linéaire élastique de la rupture et une méthode de recalage essais. Pour alimenter les lois d’endommagement disponibles dans les codes industriels, une méthode expérimentale a été proposée. Des essais de type DCB sandwiches ont permis de remonter aux propriétés mécaniques de l’interface en mode d’ouverture et en mode mixte, avec un seul montage. Ces essais ont été recalés avec succès, notamment en mode I pur.

SAFRAN Aircelle manufactures sandwich structures made of composite skins bonded to aluminium honeycomb core for aircraft’s engines nacelles applications. Local disbonds may occur at the skins/core interface and lead to significant strength reduction under in-service loadings. The present work was done with ISMANS and SAFRAN Aircelle and deals with the introduction of a “Virtual Testing” approach in order to reduce substantiation and validation cost of sandwiches structures with embedded disbond.In this study we have two kinds of models at two scales to describe the sandwich behaviour: the “homogeneized” model, which provide an industrial tool for design offices and the “detailed” model, which provide a specific tool for accurate analysis of disbond growth initiation at skin/core interface. Due to the numerical cost of the second type of model, the superelement technique has been successfully used which permits to gain computational costs without altering the result quality.Damage mechanics, with cohesive zone elements, have been chosen to numerically determine the disbond growth threshold after a comparative study with linear fracture mechanics and a full experimental method. Inputs data for industrial code using cohesive zone elements have been studied through an experimental investigation. DCB type tests on reinforced sandwiches were perfomed in…

Advisors/Committee Members: Tsobnang, François (thesis director), Sahraoui, Sohbi (thesis director), Craveur, Jean-Charles (thesis director).

Subjects/Keywords: Sandwich; Composite; Décollement; Non-propagation; Nida; Disbond; Damage tolerance; Honeycomb; 620.112

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APA (6^th Edition):

Tom, L. (2014). Contribution à l'étude numérique de la propagation d'un défaut de collage dans une structure sandwich Nida : Contribution to the numerical analysis of disbond growth in honeycomb core sandwich structure. (Doctoral Dissertation). Le Mans. Retrieved from http://www.theses.fr/2014LEMA1036

Chicago Manual of Style (16^th Edition):

Tom, Louis-Georges. “Contribution à l'étude numérique de la propagation d'un défaut de collage dans une structure sandwich Nida : Contribution to the numerical analysis of disbond growth in honeycomb core sandwich structure.” 2014. Doctoral Dissertation, Le Mans. Accessed April 11, 2021. http://www.theses.fr/2014LEMA1036.

MLA Handbook (7^th Edition):

Tom, Louis-Georges. “Contribution à l'étude numérique de la propagation d'un défaut de collage dans une structure sandwich Nida : Contribution to the numerical analysis of disbond growth in honeycomb core sandwich structure.” 2014. Web. 11 Apr 2021.

Vancouver:

Tom L. Contribution à l'étude numérique de la propagation d'un défaut de collage dans une structure sandwich Nida : Contribution to the numerical analysis of disbond growth in honeycomb core sandwich structure. [Internet] [Doctoral dissertation]. Le Mans; 2014. [cited 2021 Apr 11]. Available from: http://www.theses.fr/2014LEMA1036.

Council of Science Editors:

Tom L. Contribution à l'étude numérique de la propagation d'un défaut de collage dans une structure sandwich Nida : Contribution to the numerical analysis of disbond growth in honeycomb core sandwich structure. [Doctoral Dissertation]. Le Mans; 2014. Available from: http://www.theses.fr/2014LEMA1036

Anna University

22. Rajkumar S. Investigation of joint configurations and joint characteristics of a3003 honeycomb sandwich panels;.

Degree: Investigation of joint configurations and joint characteristics of a3003 honeycomb sandwich panels, 2015, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/39867

►

The demand for lightweight structures made of sandwich panels is ever increasing in many industrial sectors World over numerous researches are actively pursued on several… (more)

Subjects/Keywords: Aeronautical sectors building industries; Aluminum Honeycomb Core Sandwich

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APA (6^th Edition):

S, R. (2015). Investigation of joint configurations and joint characteristics of a3003 honeycomb sandwich panels;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/39867

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):

S, Rajkumar. “Investigation of joint configurations and joint characteristics of a3003 honeycomb sandwich panels;.” 2015. Thesis, Anna University. Accessed April 11, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/39867.

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

MLA Handbook (7^th Edition):

S, Rajkumar. “Investigation of joint configurations and joint characteristics of a3003 honeycomb sandwich panels;.” 2015. Web. 11 Apr 2021.

Vancouver:

S R. Investigation of joint configurations and joint characteristics of a3003 honeycomb sandwich panels;. [Internet] [Thesis]. Anna University; 2015. [cited 2021 Apr 11]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/39867.

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

Council of Science Editors:

S R. Investigation of joint configurations and joint characteristics of a3003 honeycomb sandwich panels;. [Thesis]. Anna University; 2015. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/39867

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

Penn State University

23. Singh, Anand Kumar. Blast Mitigation Studies for All Metal Plate and Honeycomb Sandwich Panels.

Degree: 2011, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/12484

► This thesis investigates the optimization of a solid all-metal plate and a honeycomb sandwich panel to mitigate the effect of air blast loading, which consists… (more)

Subjects/Keywords: Blast; design; optimization; plate; shape; honeycomb sandwich; validation

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APA (6^th Edition):

Singh, A. K. (2011). Blast Mitigation Studies for All Metal Plate and Honeycomb Sandwich Panels. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/12484

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):

Singh, Anand Kumar. “Blast Mitigation Studies for All Metal Plate and Honeycomb Sandwich Panels.” 2011. Thesis, Penn State University. Accessed April 11, 2021. https://submit-etda.libraries.psu.edu/catalog/12484.

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

MLA Handbook (7^th Edition):

Singh, Anand Kumar. “Blast Mitigation Studies for All Metal Plate and Honeycomb Sandwich Panels.” 2011. Web. 11 Apr 2021.

Vancouver:

Singh AK. Blast Mitigation Studies for All Metal Plate and Honeycomb Sandwich Panels. [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Apr 11]. Available from: https://submit-etda.libraries.psu.edu/catalog/12484.

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

Council of Science Editors:

Singh AK. Blast Mitigation Studies for All Metal Plate and Honeycomb Sandwich Panels. [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/12484

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

Penn State University

24. Nayak, Sumanta Kumar. DESIGN OPTIMIZATION OF HONEYCOMB SANDWICH PANELS FOR BLAST LOAD MITIGATION.

Degree: 2012, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/15295

► A general process for optimization of a honeycomb core sandwich panel to minimize the effects of air blast loading is presented in this dissertation. This… (more)

▼ A general process for optimization of a honeycomb core sandwich panel to minimize the effects of air blast loading is presented in this dissertation. This process can also be readily applied to other types of cellular core. The panel geometry consists of two metal face plates with a crushable honeycomb core. Metallic sandwich panel with a cellular core such as honeycomb has a great potential to absorb the impact energy of the blast by undergoing cyclic plastic buckling deformation at a nearly constant stress. The core also provides higher bending stiffness to weight ratio of the sandwich by maintaining larger gap between the face plates. The ability of the core to absorb the impact energy and provide stiffness is not only influenced by its cell size and height, but also by the thickness and shape of the face plates. Optimization is necessary as there is strong coupling between the several variables and the physics, which makes parametric studies relatively ineffective. The optimization study investigates the size and shape of the face plates, and depth and cell size of the core, to minimize dynamic deflection or acceleration of the backface plate. Constraints on total mass and on plastic strain in the face plates are imposed. A design of experiments (DOE) based response surface optimization method is used. Response equations are determined using the central composite face centered method, which are then interfaced to a gradient based optimizer in the MATLAB optimization toolbox. Function evaluations are done using LS-DYNA finite element (FE) software. Considering the high computation time involved in the FE simulation of detailed honeycomb cells, an alternative technique is used to simplify the honeycomb core modeling and to reduce computation time. Specifically, virtual testing is used to develop a homogenized model for the stress-strain curve of the honeycomb core. The homogenized model is validated by comparison to existing results in the literature as well as to detailed FE models of test specimens. The homogenization approach can be readily applied to other types of cellular core. For deflection minimization, results produce a stiffer front face plate which effectively distributes the blast load to a larger area of the core and also produce a stiff core by increasing both core density and core depth. For acceleration minimization, results again produce a stiffer front face plate, but accompanied by a sufficiently soft core. The mechanism of lowering the backface acceleration is by absorbing energy with low transmitted stress. Strain rate effects on the results are discussed. Further, a clear cut comparison between monolithic metal plates and sandwich plates, for the same loading and failure criteria, is presented here. Advisors/Committee Members: Ashok D Belegundu, Dissertation Advisor/Co-Advisor, Ashok D Belegundu, Committee Chair/Co-Chair, Panagiotis Michaleris, Committee Member, Christopher Rahn, Committee Member, Ali M Memari, Committee Member.

Subjects/Keywords: honeycomb; homogenization; blast; optimization; sandwich plates; virtual testing

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

APA (6^th Edition):

Nayak, S. K. (2012). DESIGN OPTIMIZATION OF HONEYCOMB SANDWICH PANELS FOR BLAST LOAD MITIGATION. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/15295

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):

Nayak, Sumanta Kumar. “DESIGN OPTIMIZATION OF HONEYCOMB SANDWICH PANELS FOR BLAST LOAD MITIGATION.” 2012. Thesis, Penn State University. Accessed April 11, 2021. https://submit-etda.libraries.psu.edu/catalog/15295.

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

MLA Handbook (7^th Edition):

Nayak, Sumanta Kumar. “DESIGN OPTIMIZATION OF HONEYCOMB SANDWICH PANELS FOR BLAST LOAD MITIGATION.” 2012. Web. 11 Apr 2021.

Vancouver:

Nayak SK. DESIGN OPTIMIZATION OF HONEYCOMB SANDWICH PANELS FOR BLAST LOAD MITIGATION. [Internet] [Thesis]. Penn State University; 2012. [cited 2021 Apr 11]. Available from: https://submit-etda.libraries.psu.edu/catalog/15295.

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

Council of Science Editors:

Nayak SK. DESIGN OPTIMIZATION OF HONEYCOMB SANDWICH PANELS FOR BLAST LOAD MITIGATION. [Thesis]. Penn State University; 2012. Available from: https://submit-etda.libraries.psu.edu/catalog/15295

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

NSYSU

25. Nieh, Shih-Wei. Study of Growth Behavior and Electronic Properties for Co on Bi honeycomb.

Degree: Master, Physics, 2017, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0814117-011126

► Topological Insulator (TI) is popular research topic in recent years and Bismuth is always a perfect candidate for the experiments in TI. In fact, Bi… (more)

Subjects/Keywords: Bi; Topological insulator; Scanning tunneling microscope; Co; Honeycomb

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

APA (6^th Edition):

Nieh, S. (2017). Study of Growth Behavior and Electronic Properties for Co on Bi honeycomb. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0814117-011126

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):

Nieh, Shih-Wei. “Study of Growth Behavior and Electronic Properties for Co on Bi honeycomb.” 2017. Thesis, NSYSU. Accessed April 11, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0814117-011126.

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

MLA Handbook (7^th Edition):

Nieh, Shih-Wei. “Study of Growth Behavior and Electronic Properties for Co on Bi honeycomb.” 2017. Web. 11 Apr 2021.

Vancouver:

Nieh S. Study of Growth Behavior and Electronic Properties for Co on Bi honeycomb. [Internet] [Thesis]. NSYSU; 2017. [cited 2021 Apr 11]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0814117-011126.

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

Council of Science Editors:

Nieh S. Study of Growth Behavior and Electronic Properties for Co on Bi honeycomb. [Thesis]. NSYSU; 2017. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0814117-011126

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

University of Toronto

26. Aranguren van Egmond, Derek Alexandre. Designing for Disorder: The Mechanical Behaviour of Bioinspired, Stochastic Honeycomb Materials.

Degree: 2018, University of Toronto

URL: http://hdl.handle.net/1807/91711

►

In nature, structure, material and function are constantly evolving in tandem. This work employs polymer 3D printing to study new honeycomb materials inspired by disordered,… (more)

Subjects/Keywords: 3D printing; honeycomb; irregular; sandwich; stochastic; structural biology; 0794

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APA (6^th Edition):

Aranguren van Egmond, D. A. (2018). Designing for Disorder: The Mechanical Behaviour of Bioinspired, Stochastic Honeycomb Materials. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/91711

Chicago Manual of Style (16^th Edition):

Aranguren van Egmond, Derek Alexandre. “Designing for Disorder: The Mechanical Behaviour of Bioinspired, Stochastic Honeycomb Materials.” 2018. Masters Thesis, University of Toronto. Accessed April 11, 2021. http://hdl.handle.net/1807/91711.

MLA Handbook (7^th Edition):

Aranguren van Egmond, Derek Alexandre. “Designing for Disorder: The Mechanical Behaviour of Bioinspired, Stochastic Honeycomb Materials.” 2018. Web. 11 Apr 2021.

Vancouver:

Aranguren van Egmond DA. Designing for Disorder: The Mechanical Behaviour of Bioinspired, Stochastic Honeycomb Materials. [Internet] [Masters thesis]. University of Toronto; 2018. [cited 2021 Apr 11]. Available from: http://hdl.handle.net/1807/91711.

Council of Science Editors:

Aranguren van Egmond DA. Designing for Disorder: The Mechanical Behaviour of Bioinspired, Stochastic Honeycomb Materials. [Masters Thesis]. University of Toronto; 2018. Available from: http://hdl.handle.net/1807/91711

27. GIL ROJAS, JESSYCA. Development of Optimal Design technology for Robotic Prosthesis Harness .

Degree: 2016, Universidad de los Andes

URL: https://documentodegrado.uniandes.edu.co/documentos/9104.pdf

► La problemática de la concentración de calor entre el muñón y el socket es tratada en varios estudios ya que esto genera el daño de… (more)

Subjects/Keywords: Socket; Prótesis; Arnés; Calor; HoneyComb

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APA (6^th Edition):

GIL ROJAS, J. (2016). Development of Optimal Design technology for Robotic Prosthesis Harness . (Thesis). Universidad de los Andes. Retrieved from https://documentodegrado.uniandes.edu.co/documentos/9104.pdf

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):

GIL ROJAS, JESSYCA. “Development of Optimal Design technology for Robotic Prosthesis Harness .” 2016. Thesis, Universidad de los Andes. Accessed April 11, 2021. https://documentodegrado.uniandes.edu.co/documentos/9104.pdf.

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

MLA Handbook (7^th Edition):

GIL ROJAS, JESSYCA. “Development of Optimal Design technology for Robotic Prosthesis Harness .” 2016. Web. 11 Apr 2021.

Vancouver:

GIL ROJAS J. Development of Optimal Design technology for Robotic Prosthesis Harness . [Internet] [Thesis]. Universidad de los Andes; 2016. [cited 2021 Apr 11]. Available from: https://documentodegrado.uniandes.edu.co/documentos/9104.pdf.

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

Council of Science Editors:

GIL ROJAS J. Development of Optimal Design technology for Robotic Prosthesis Harness . [Thesis]. Universidad de los Andes; 2016. Available from: https://documentodegrado.uniandes.edu.co/documentos/9104.pdf

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

University of Wollongong

28. Feng, Liya. Simulation of crystal, electronic and magnetic structures, and gas adsorption of two dimensional materials.

Degree: Doctor of Philosophy, 2014, University of Wollongong

URL: ; https://ro.uow.edu.au/theses/4152

► In this thesis, functionalization of monolayer honeycomb lattices and their allotropes is investigated, including graphene, silicene, germanene, and MoS2, with theoretical calculations based on… (more)

▼ In this thesis, functionalization of monolayer honeycomb lattices and their allotropes is investigated, including graphene, silicene, germanene, and MoS2, with theoretical calculations based on density functional theory (DFT) implemented by the Vienna Ab-initio Simulation Package (VASP) code. The atomic structure of graphene is that of an sp2 bonded planar lattice. The band structure indicates that graphene is a semimetal with a Dirac cone at the K-point. Silicene and germanene have mixed sp2-sp3 buckled hexagonal structures and display similar electronic properties to those of graphene. Single-layer MoS2 features a hexagonal packed layer composed of Mo atoms sandwiched between two layers of S atoms and appears to be a nonmagnetic semiconductor. In order to alter the metallic properties, various adatoms are introduced on the graphene surface. A single H atom on top of a carbon atom in graphene pulls the bonded C atom out of the plane and creates a magnetic moment of 1 μ B for graphene. Single F and O adatoms on graphene are adsorbed at the top site and bridge site, respectively, without any contribution of magnetic moment. The adsorption of a single F atom on graphene was found to be metallic. Single H and O adatoms on graphene transform the system into a semiconductor. Under the inspiration of the graphene allotropes, new types of silicene allotropes, octasilicene, silicyne, and silicdiyne, are constituted and found to be buckled metallic materials. To fill unsatisfied valence shells and replace the dangling bonds with valence bonds in silicene allotropes, hydrogen atoms were introduced on silicene allotropes. Consequently, all the hydrogenated silicene allotropes appear to be semiconductors. The type of adsorption in which the dangling bonds are completely replaced by valence bonds is proved to be more stable, suggesting that the Si atom favors sp3 hybridization. Fluorinated germanene keeps the chair configuration characteristic of pure germanene, which is the most stable configuration, but there is also a metallic structure for both types of fluorinated germanene. The O atom was used to study the functionalization of single-layer MoS2. The top of an S atom site is the most energetically favorable position, and the oxygen atom at this site results in a direct gap. The electronic structures of a series of isostructural compounds, M2SiO4 (M = Mn, Co, and Ni), belonging to the olivine family, are studied by first principles calculations. The results show that the ground states of all…

Subjects/Keywords: monolayer honeycomb lattice; density functional theory (DFT); allotropes; gas adsorption

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APA (6^th Edition):

Feng, L. (2014). Simulation of crystal, electronic and magnetic structures, and gas adsorption of two dimensional materials. (Doctoral Dissertation). University of Wollongong. Retrieved from ; https://ro.uow.edu.au/theses/4152

Chicago Manual of Style (16^th Edition):

Feng, Liya. “Simulation of crystal, electronic and magnetic structures, and gas adsorption of two dimensional materials.” 2014. Doctoral Dissertation, University of Wollongong. Accessed April 11, 2021. ; https://ro.uow.edu.au/theses/4152.

MLA Handbook (7^th Edition):

Feng, Liya. “Simulation of crystal, electronic and magnetic structures, and gas adsorption of two dimensional materials.” 2014. Web. 11 Apr 2021.

Vancouver:

Feng L. Simulation of crystal, electronic and magnetic structures, and gas adsorption of two dimensional materials. [Internet] [Doctoral dissertation]. University of Wollongong; 2014. [cited 2021 Apr 11]. Available from: ; https://ro.uow.edu.au/theses/4152.

Council of Science Editors:

Feng L. Simulation of crystal, electronic and magnetic structures, and gas adsorption of two dimensional materials. [Doctoral Dissertation]. University of Wollongong; 2014. Available from: ; https://ro.uow.edu.au/theses/4152

Northeastern University

29. Alqassim, Ghanim. Mechanical properties of hierarchical honeycomb structures.

Degree: MS, Department of Mechanical and Industrial Engineering, 2011, Northeastern University

URL: http://hdl.handle.net/2047/d20001227

► Cellular solids such as foams are widely used in engineering applications mainly due to their superior mechanical behavior and lightweight high strength characteristic. On the… (more)

▼ Cellular solids such as foams are widely used in engineering applications mainly due to their superior mechanical behavior and lightweight high strength characteristic. On the other hand, hierarchical cellular structures are known to have enhanced mechanical properties when compared to regular cellular structures. Therefore, it is important to understand the mechanical properties and the variation of these properties with the presence of hierarchy. This investigation builds upon prior works and considers the mechanical properties of two dimensional hierarchical honeycomb structures using analytical and numerical methods. However, in contrast to previous research, the hierarchy in this work is constructed by replacing every three edge vertex of a regular hexagonal honeycomb with a smaller hexagon. This gives a hierarchy of first order. Repeating this process builds a fractal appearing second order hierarchical structure. Our results showed that hierarchical honeycombs of first and second order can be up to 2 and 3.5 times stiffer than regular hexagonal honeycombs with the same relative density.; Another mechanical property considered in this study is the energy absorbance of hierarchical honeycombs. The in-plane dynamic crushing of hierarchical cellular structures is yet to be investigated. Most of the previous work performed on the mechanical behavior of cellular materials, considers an intact structural organization for the cellular material. Thus, to further explore the energy absorbance of hierarchical honeycombs, we have studied the response of three dimensional regular hexagonal first order hierarchical honeycombs under in-plane dynamic crushing. Finite element method was employed to measure the response of hierarchical cellular structures under impact loading. As it is well established, honeycomb cellular structures behave differently under dynamic loading, mainly in their deformation modes and stress levels. In addition, for plastic behavior, the bilinear material properties with two different hardening rates (5% and 10%) were also considered. Our results demonstrate that there is not much difference in the energy absorption of the hierarchical structures when compared to regular honeycombs for elastic perfectly plastic material. However, by applying strain hardening to the material that makes up the cell walls of the hierarchical honeycomb, the energy absorbance of the structures significantly increases.

Subjects/Keywords: mechanical engineering; honeycomb structures; cellular structures; Mechanical Engineering

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

APA (6^th Edition):

Alqassim, G. (2011). Mechanical properties of hierarchical honeycomb structures. (Masters Thesis). Northeastern University. Retrieved from http://hdl.handle.net/2047/d20001227

Chicago Manual of Style (16^th Edition):

Alqassim, Ghanim. “Mechanical properties of hierarchical honeycomb structures.” 2011. Masters Thesis, Northeastern University. Accessed April 11, 2021. http://hdl.handle.net/2047/d20001227.

MLA Handbook (7^th Edition):

Alqassim, Ghanim. “Mechanical properties of hierarchical honeycomb structures.” 2011. Web. 11 Apr 2021.

Vancouver:

Alqassim G. Mechanical properties of hierarchical honeycomb structures. [Internet] [Masters thesis]. Northeastern University; 2011. [cited 2021 Apr 11]. Available from: http://hdl.handle.net/2047/d20001227.

Council of Science Editors:

Alqassim G. Mechanical properties of hierarchical honeycomb structures. [Masters Thesis]. Northeastern University; 2011. Available from: http://hdl.handle.net/2047/d20001227

North-West University

30. Pottas, Johannes. A numerical investigation of the crashworthiness of a composite glider cockpit / J.J. Pottas .

Degree: 2015, North-West University

URL: http://hdl.handle.net/10394/15921

► Finite element analysis with explicit time integration is widely used in commercial crash solvers to accurately simulate transient structural problems involving large-deformation and nonlinearity. Technological… (more)

▼ Finite element analysis with explicit time integration is widely used in commercial crash solvers to accurately simulate transient structural problems involving large-deformation and nonlinearity. Technological advances in computer software and hardware have expanded the boundaries of computational expense, allowing designers to analyse increasingly complex structures on desktop computers. This dissertation is a review of the use of finite element analysis for crash simulation, the principles of crashworthy design and a practical application of these methods and principles in the development of a concept energy absorber for a sailplane. Explicit nonlinear finite element analysis was used to do crash simulations of the glass, carbon and aramid fibre cockpit during the development of concept absorbers. The SOL700 solution sequence in MSC Nastran, which invokes the LS-Dyna solver for structural solution, was used. Single finite elements with Hughes-Liu shell formulation were loaded to failure in pure tension and compression and validated against material properties. Further, a simple composite crash box in a mass drop experiment was simulated and compared to experimental results. FEA was used for various crash simulations of the JS1 sailplane cockpit to determine its crashworthiness. Then, variants of a concept energy absorber with cellular aluminium sandwich construction were simulated. Two more variants constructed only of fibre-laminate materials were modelled for comparison. Energy absorption and specific energy absorption were analysed over the first 515 mm of crushing. Simulation results indicate that the existing JS1 cockpit is able to absorb energy through progressive crushing of the frontal structure without collapse of the main cockpit volume. Simulated energy absorption over the first 515 mm was improved from 2232 J for the existing structure, to 9 363 J by the addition of an energy absorber. Specific energy absorption during the simulation was increased from 1063 J/kg to 2035 J/kg.

Subjects/Keywords: Composite; Crash simulation; Crashworthiness; Energy absorption; Explicit; Finite element analysis; Honeycomb

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

APA (6^th Edition):

Pottas, J. (2015). A numerical investigation of the crashworthiness of a composite glider cockpit / J.J. Pottas . (Thesis). North-West University. Retrieved from http://hdl.handle.net/10394/15921

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):

Pottas, Johannes. “A numerical investigation of the crashworthiness of a composite glider cockpit / J.J. Pottas .” 2015. Thesis, North-West University. Accessed April 11, 2021. http://hdl.handle.net/10394/15921.

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

MLA Handbook (7^th Edition):

Pottas, Johannes. “A numerical investigation of the crashworthiness of a composite glider cockpit / J.J. Pottas .” 2015. Web. 11 Apr 2021.

Vancouver:

Pottas J. A numerical investigation of the crashworthiness of a composite glider cockpit / J.J. Pottas . [Internet] [Thesis]. North-West University; 2015. [cited 2021 Apr 11]. Available from: http://hdl.handle.net/10394/15921.

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

Council of Science Editors:

Pottas J. A numerical investigation of the crashworthiness of a composite glider cockpit / J.J. Pottas . [Thesis]. North-West University; 2015. Available from: http://hdl.handle.net/10394/15921

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

Open Access Theses and Dissertations