subject:(Mechanical behavior )

1. Andersohn, Alexander. Modeling Frameworks for Representing the Mechanical Behavior of Tissues with a Specific Look at Vasculature.

Degree: 2013, Texas Digital Library

URL: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66547

► Many mechanicstic models aimed at predicting tissue behavior attempt to connect constitutive factors (such as effects due to collagen or fibrin concentrations) with the overall… (more)

Subjects/Keywords: mechanical behavior

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APA (6^th Edition):

Andersohn, A. (2013). Modeling Frameworks for Representing the Mechanical Behavior of Tissues with a Specific Look at Vasculature. (Thesis). Texas Digital Library. Retrieved from http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66547

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):

Andersohn, Alexander. “Modeling Frameworks for Representing the Mechanical Behavior of Tissues with a Specific Look at Vasculature.” 2013. Thesis, Texas Digital Library. Accessed April 18, 2021. http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66547.

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

MLA Handbook (7^th Edition):

Andersohn, Alexander. “Modeling Frameworks for Representing the Mechanical Behavior of Tissues with a Specific Look at Vasculature.” 2013. Web. 18 Apr 2021.

Vancouver:

Andersohn A. Modeling Frameworks for Representing the Mechanical Behavior of Tissues with a Specific Look at Vasculature. [Internet] [Thesis]. Texas Digital Library; 2013. [cited 2021 Apr 18]. Available from: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66547.

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

Council of Science Editors:

Andersohn A. Modeling Frameworks for Representing the Mechanical Behavior of Tissues with a Specific Look at Vasculature. [Thesis]. Texas Digital Library; 2013. Available from: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66547

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

Cornell University

2. Kim, Grace. The Effects Of Mineralization And Crystallinity On The Mechanical Behavior Of Bone.

Degree: PhD, Mechanical Engineering, 2013, Cornell University

URL: http://hdl.handle.net/1813/34009

► The application of engineering theory and analysis to bone has led to many insights regarding the etiology of increased skeletal fragility with aging and diseases… (more)

Subjects/Keywords: Bone; Nanoindentation; Mechanical behavior

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APA (6^th Edition):

Kim, G. (2013). The Effects Of Mineralization And Crystallinity On The Mechanical Behavior Of Bone. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/34009

Chicago Manual of Style (16^th Edition):

Kim, Grace. “The Effects Of Mineralization And Crystallinity On The Mechanical Behavior Of Bone.” 2013. Doctoral Dissertation, Cornell University. Accessed April 18, 2021. http://hdl.handle.net/1813/34009.

MLA Handbook (7^th Edition):

Kim, Grace. “The Effects Of Mineralization And Crystallinity On The Mechanical Behavior Of Bone.” 2013. Web. 18 Apr 2021.

Vancouver:

Kim G. The Effects Of Mineralization And Crystallinity On The Mechanical Behavior Of Bone. [Internet] [Doctoral dissertation]. Cornell University; 2013. [cited 2021 Apr 18]. Available from: http://hdl.handle.net/1813/34009.

Council of Science Editors:

Kim G. The Effects Of Mineralization And Crystallinity On The Mechanical Behavior Of Bone. [Doctoral Dissertation]. Cornell University; 2013. Available from: http://hdl.handle.net/1813/34009

Addis Ababa University

3. Merihun, Lukas. A STUDY ON THE EFFECT OF REMOLDING ON THE MECHANICAL BEHAVIOR OF ADDIS ABABA RED CLAY SOIL .

Degree: 2013, Addis Ababa University

URL: http://etd.aau.edu.et/dspace/handle/123456789/4219

► This research work tries to see the effect of soil remolding on the mechanical behavior of red clay of Addis Ababa. It is tried to… (more)

▼ This research work tries to see the effect of soil remolding on the mechanical behavior of red clay of Addis Ababa. It is tried to identify the effect of remolding by conducting a series of laboratory tests such as triaxial compression and consolidation tests on the undisturbed and remolded soil samples. The soil was remolded by compacting at OMC. It was also done basic tests to see the engineering properties of the soils. The one dimensional consolidation tests were done on samples of diameters of 50mm and 70mm and height of 18mm with the effective consolidation stresses of 50 kpa to 1600 kpa. A total of eight onedimensional consolidation tests were run, out of which four were undisturbed and four were remolded samples. The deformation and hydromechanical /permeability while loading/ behavior were examined using the one dimensional consolidation test. The triaxial tests were done on samples of 38mm and height of twice the diameter. Two triaxial testing machines were employed on the testing program. Soil samples collected from Kolfe areas were conducted on the newly acquired Automatic triaxial testing machines and samples collected from Addisu Gebeya area were tested on the semi automatic triaxial compression machine procured two years ago. The type of triaxial test employed was Consolidated undrained/CU/ with pore pressure measurement and with the effective consolidation pressure of 150 kpa, 250 kpa and 350 kpa. A total of twenty-four triaxial CU tests were run out of which twelve were undisturbed and twelve were remolded. The results of triaxial tests were used to examine the stress-strain and strength behavior.The results show that remolding reduces the peak deviator stress, effective cohesion and permeability and increases amount of compression and time required for consolidation.The results show that remolding reduces the peak deviator stress, effective cohesion and permeability and increases amount of compression and time required for consolidation. Advisors/Committee Members: Dr. Hadush Seged (advisor).

Subjects/Keywords: MECHANICAL BEHAVIOR; RED CLAY SOIL

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APA (6^th Edition):

Merihun, L. (2013). A STUDY ON THE EFFECT OF REMOLDING ON THE MECHANICAL BEHAVIOR OF ADDIS ABABA RED CLAY SOIL . (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/4219

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):

Merihun, Lukas. “A STUDY ON THE EFFECT OF REMOLDING ON THE MECHANICAL BEHAVIOR OF ADDIS ABABA RED CLAY SOIL .” 2013. Thesis, Addis Ababa University. Accessed April 18, 2021. http://etd.aau.edu.et/dspace/handle/123456789/4219.

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

MLA Handbook (7^th Edition):

Merihun, Lukas. “A STUDY ON THE EFFECT OF REMOLDING ON THE MECHANICAL BEHAVIOR OF ADDIS ABABA RED CLAY SOIL .” 2013. Web. 18 Apr 2021.

Vancouver:

Merihun L. A STUDY ON THE EFFECT OF REMOLDING ON THE MECHANICAL BEHAVIOR OF ADDIS ABABA RED CLAY SOIL . [Internet] [Thesis]. Addis Ababa University; 2013. [cited 2021 Apr 18]. Available from: http://etd.aau.edu.et/dspace/handle/123456789/4219.

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

Council of Science Editors:

Merihun L. A STUDY ON THE EFFECT OF REMOLDING ON THE MECHANICAL BEHAVIOR OF ADDIS ABABA RED CLAY SOIL . [Thesis]. Addis Ababa University; 2013. Available from: http://etd.aau.edu.et/dspace/handle/123456789/4219

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

University of Manchester

4. Wang, Li. STUDY OF SINTERING BEHAVIOURS AND MECHANICAL PROPERTIES OF BARIUM STRONTIUM COBALT IRON OXIDE CERAMICS.

Degree: 2016, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:300312

► The thesis studies the sintering behaviours and mechanical properties of perovskite-structured Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) ceramics. The sintering behaviours of BSCF are studied by sintering BSCF powder… (more)

▼ The thesis studies the sintering behaviours and mechanical properties of perovskite-structured Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) ceramics. The sintering behaviours of BSCF are studied by sintering BSCF powder using a series of sintering temperatures and dwell times. Under all circumstances, only a cubic perovskite structure is identified in as-sintered samples. The relative density of BSCF increases with increasing sintering temperature and dwell time, but shows a more significant increase with increasing temperature. While the grain size increases with increasing sintering temperature and dwell time, it is found that the increasing temperature contributes much more significantly than increasing dwell time in grain growth. The shape of grain size distribution profile is independent of sintering temperature and dwell time, but the profile shifts with different sintering conditions. The grain maintains an aspect ratio of 1.8 irrespective of sintering conditions. Similar findings are also made on the Ni-doped BSCF, but it is found that Ni doping inhibits the grain growth and retards the densification of BSCF while it has little influence on the grain size distributions and grain aspect ratio distributions. The grain growth exponent (n) and apparent activation energy (Q) are also systematically studied. It is found that grain boundary diffusion is the dominant controlling mechanism for BSCF while both grain boundary and lattice diffusions are the equally dominant controlling mechanisms for BSCF-Ni8. The fracture stress of BSCF is measured by both three-point and ring-on-ring bending tests at room and high temperatures. The fracture stress determined by three-point bending tests is consistently higher than that value measured by ring-on-ring tests for a given temperature. By utilising Weibull statistics a close prediction is made of the three-point values from the ring-on-ring values. Compared with the Young’s modulus of BSCF obtained from three-point bending tests between RT and 800 °C, the values determined from ring-on-ring tests shows a fairly good agreement. However, the Young’s modulus measured by both bending tests is lower than that value determined by micro-indentation tests. Hardness and fracture toughness are independent of grain size and grain orientation. Porosity is the dominant factor in Young’s modulus, hardness and fracture toughness of BSCF. The intrinsic hardness, intrinsic Young’s modulus and intrinsic fracture toughness of BSCF are also determined. The subcritical crack growth (SCG) of BSCF is also studied using constant load method at RT and constant stress rate method at 800 °C. It is found that that BSCF is not susceptible to SCG at RT but becomes relatively sensitive to SCG at 800 °C. The results are subsequently used as a basis for a strength–probability–time (SPT) lifetime prediction. Ni doping increases the Young’s modulus, hardness and fracture toughness of BSCF determined micro-indentation tests at RT. Both hardness and Young’s modulus show a non-monotonic trend with Ni doping content, which… Advisors/Committee Members: HALL, DAVID DA, Hall, David, Hall, David.

Subjects/Keywords: BSCF; SINTERING BEHAVIOUR; MECHANICAL PROPERTY; DOPING

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APA (6^th Edition):

Wang, L. (2016). STUDY OF SINTERING BEHAVIOURS AND MECHANICAL PROPERTIES OF BARIUM STRONTIUM COBALT IRON OXIDE CERAMICS. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:300312

Chicago Manual of Style (16^th Edition):

Wang, Li. “STUDY OF SINTERING BEHAVIOURS AND MECHANICAL PROPERTIES OF BARIUM STRONTIUM COBALT IRON OXIDE CERAMICS.” 2016. Doctoral Dissertation, University of Manchester. Accessed April 18, 2021. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:300312.

MLA Handbook (7^th Edition):

Wang, Li. “STUDY OF SINTERING BEHAVIOURS AND MECHANICAL PROPERTIES OF BARIUM STRONTIUM COBALT IRON OXIDE CERAMICS.” 2016. Web. 18 Apr 2021.

Vancouver:

Wang L. STUDY OF SINTERING BEHAVIOURS AND MECHANICAL PROPERTIES OF BARIUM STRONTIUM COBALT IRON OXIDE CERAMICS. [Internet] [Doctoral dissertation]. University of Manchester; 2016. [cited 2021 Apr 18]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:300312.

Council of Science Editors:

Wang L. STUDY OF SINTERING BEHAVIOURS AND MECHANICAL PROPERTIES OF BARIUM STRONTIUM COBALT IRON OXIDE CERAMICS. [Doctoral Dissertation]. University of Manchester; 2016. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:300312

University of Edinburgh

5. McCraw, Claire Aarti. Supercritical CO2 flow through fractured low permeability geological media : experimental investigation under varying mechanical and thermal conditions.

Degree: PhD, 2016, University of Edinburgh

URL: http://hdl.handle.net/1842/31020

► To ensure secure geological storage of carbon dioxide it is necessary to establish the integrity of the overlying sealing rock. Seal rock fractures are key… (more)

▼ To ensure secure geological storage of carbon dioxide it is necessary to establish the integrity of the overlying sealing rock. Seal rock fractures are key potential leakage pathways for storage systems; understanding their behaviour in the presence of CO2 under reservoir conditions is therefore of great importance. This thesis presents experimental investigations into the hydraulic behaviour of discrete fractures within low permeability seal rocks during single phase supercritical CO2 flow, under varying mechanical and thermal conditions representative of in-situ conditions. An experimental rig was designed and built to enable the controlled study of supercritical CO2 flow through 38 mm diameter samples under high pressures and temperatures. Samples are placed within a Hassler-type uniaxial pressure cell and CO2 flow is controlled via high precision syringe pumps. Flow experiments with supercritical CO2 within the pressure range 10-50 MPa were undertaken at temperatures of 38°C and 58°C with confining pressures of 35-55 MPa. The effects of stress loading and temperature change on the hydraulic properties of the fractured sample were studied; continuous differential pressure measurement enabled analysis of hydraulic response. Experiments were undertaken on a pre-existing Wissey field Zechstein Dolomite fracture and three artificial fractures (two East Brae field Kimmeridge Clay samples and one Cambrian shale quarry sample). Fracture permeabilities ranged from 8 X 10-14 m2 to 6 X 10-11 m2 with higher permeabilities observed within the harder rock samples. A broadly linear flow regime, consistent with Darcy's law, was observed in the lowest permeability sample (East Brae). A Forchheimer-type non-linear flow regime was observed in the other samples. Transmissivity variations during experiments were used to infer the mechanical impact of stress and temperature changes. An increase in effective stress resulted in transmissivity reduction, suggesting fracture aperture closure. During initial stress loading cycles, and subsequent higher temperature stress loading, a component of this transmissivity reduction was found to be inelastic, suggesting permanent modification of fracture geometry during closure. Pre- and post-experiment fracture surface characterisation provides further evidence for the occurrence of plastic deformation. Transmissivity-stress relationships were elastic during subsequent external stress-loading cycles, suggesting elastic closure and opening of fractures without additional permanent fracture geometry changes. The impact of fluid property variations on fracture hydraulic conductivity, Kfrac, was also analysed. Under constant effective stress Kfrac was found to be higher within high temperature and low fluid pressure scenarios, due to higher density/viscosity ratios. However, under constant confining pressure, fluid pressure changes are coupled both to mechanical effects (from effective stress alteration) and hydraulic effects (from viscosity variation), with opposing impacts on fracture hydraulic…

Subjects/Keywords: 551.48; CO2; fractures; flow; hydro-mechanical behaviour

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

APA (6^th Edition):

McCraw, C. A. (2016). Supercritical CO2 flow through fractured low permeability geological media : experimental investigation under varying mechanical and thermal conditions. (Doctoral Dissertation). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/31020

Chicago Manual of Style (16^th Edition):

McCraw, Claire Aarti. “Supercritical CO2 flow through fractured low permeability geological media : experimental investigation under varying mechanical and thermal conditions.” 2016. Doctoral Dissertation, University of Edinburgh. Accessed April 18, 2021. http://hdl.handle.net/1842/31020.

MLA Handbook (7^th Edition):

McCraw, Claire Aarti. “Supercritical CO2 flow through fractured low permeability geological media : experimental investigation under varying mechanical and thermal conditions.” 2016. Web. 18 Apr 2021.

Vancouver:

McCraw CA. Supercritical CO2 flow through fractured low permeability geological media : experimental investigation under varying mechanical and thermal conditions. [Internet] [Doctoral dissertation]. University of Edinburgh; 2016. [cited 2021 Apr 18]. Available from: http://hdl.handle.net/1842/31020.

Council of Science Editors:

McCraw CA. Supercritical CO2 flow through fractured low permeability geological media : experimental investigation under varying mechanical and thermal conditions. [Doctoral Dissertation]. University of Edinburgh; 2016. Available from: http://hdl.handle.net/1842/31020

University of Glasgow

6. Gallipoli, Domenico. Constitutive and numerical modelling of unsaturated soils.

Degree: PhD, 2000, University of Glasgow

URL: http://theses.gla.ac.uk/75822/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325448

► The thesis focuses on three different areas: development of constitutive models for unsaturated soils, improvement of the finite element code "Compass" for coupled flow-deformation analysis… (more)

▼ The thesis focuses on three different areas: development of constitutive models for unsaturated soils, improvement of the finite element code "Compass" for coupled flow-deformation analysis involving unsaturated soils and application of the improved code to the simulation of pressuremeter tests in unsaturated soils. On the constitutive side, a unique relationship is proposed between degree of saturation, suction and specific volume, by introducing dependency on specific volume in the simplified van Genuchten [48] equation. This is a significant improvement over the common assumption of a state surface expression for degree of saturation. If combined with an elasto-plastic stress-strain model predicting the variation of specific volume, the proposed relationship is capable of reproducing irreversible changes of degree of saturation and changes of degree of saturation experimentally observed during shearing. Predictions show very good agreement with experimental results from tests on compacted Speswhite Kaolin published in the literature. On the numerical side, a number of changes to the code "Compass" have been performed. The new relationship for degree of saturation is implemented in the code and the implementation is validated against three benchmark problems. Use of the new relationship for degree of saturation results in significantly different predictions to those obtained if a conventional state surface expression for degree of saturation is used (as present in the original code). Implementation of the water and air continuity equations in "Compass" has been corrected by expressing these equations in terms of flux velocities relative to the soil skeleton. This is the form in which the equations should be expressed if they are to be combined with Darcy's law for liquid and gas flows. The simulation of a notional laboratory test shows that the incorrect combination of Darcy's law with absolute flux velocities, as present in the original code, causes significant errors. The convergency algorithm at constitutive level employed in the code has been corrected by introducing residual flux terms in the two flow equations, analogous to residual forces in the equilibrium equation. These terms must be taken into account if a convergency algorithm for an elasto-plastic stress-strain model is used and the relationship assumed for variation of degree of saturation involves any dependency on net stresses. A numerical study of a notional laboratory test shows that omission of residual flux terms results in substantial errors and may cause failure to converge. The plane-strain formulation of code "Compass" has been corrected by imposing the condition of nullity only on the out-of-plane component of the total strain rate vector instead of the out-of-plane component of each single contribution to the total strain rate, as was done in the original code. Such inconsistency, due to the history of development of finite element programs, also appears in other examples published in the literature. Numerical simulations of two types of…

Subjects/Keywords: 519; Mechanical behaviour

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APA (6^th Edition):

Gallipoli, D. (2000). Constitutive and numerical modelling of unsaturated soils. (Doctoral Dissertation). University of Glasgow. Retrieved from http://theses.gla.ac.uk/75822/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325448

Chicago Manual of Style (16^th Edition):

Gallipoli, Domenico. “Constitutive and numerical modelling of unsaturated soils.” 2000. Doctoral Dissertation, University of Glasgow. Accessed April 18, 2021. http://theses.gla.ac.uk/75822/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325448.

MLA Handbook (7^th Edition):

Gallipoli, Domenico. “Constitutive and numerical modelling of unsaturated soils.” 2000. Web. 18 Apr 2021.

Vancouver:

Gallipoli D. Constitutive and numerical modelling of unsaturated soils. [Internet] [Doctoral dissertation]. University of Glasgow; 2000. [cited 2021 Apr 18]. Available from: http://theses.gla.ac.uk/75822/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325448.

Council of Science Editors:

Gallipoli D. Constitutive and numerical modelling of unsaturated soils. [Doctoral Dissertation]. University of Glasgow; 2000. Available from: http://theses.gla.ac.uk/75822/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325448

University of Manchester

7. Wang, Li. Study of sintering behaviours and mechanical properties of barium strontium cobalt iron oxide ceramics.

Degree: PhD, 2016, University of Manchester

URL: https://www.research.manchester.ac.uk/portal/en/theses/study-of-sintering-behaviours-and-mechanical-properties-of-barium-strontium-cobalt-iron-oxide-ceramics(cefae647-0ab8-4f69-9aa6-f91c6aa8239e).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.706249

► The thesis studies the sintering behaviours and mechanical properties of perovskite-structured Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) ceramics. The sintering behaviours of BSCF are studied by sintering BSCF powder… (more)

▼ The thesis studies the sintering behaviours and mechanical properties of perovskite-structured Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) ceramics. The sintering behaviours of BSCF are studied by sintering BSCF powder using a series of sintering temperatures and dwell times. Under all circumstances, only a cubic perovskite structure is identified in as-sintered samples. The relative density of BSCF increases with increasing sintering temperature and dwell time, but shows a more significant increase with increasing temperature. While the grain size increases with increasing sintering temperature and dwell time, it is found that the increasing temperature contributes much more significantly than increasing dwell time in grain growth. The shape of grain size distribution profile is independent of sintering temperature and dwell time, but the profile shifts with different sintering conditions. The grain maintains an aspect ratio of 1.8 irrespective of sintering conditions. Similar findings are also made on the Ni-doped BSCF, but it is found that Ni doping inhibits the grain growth and retards the densification of BSCF while it has little influence on the grain size distributions and grain aspect ratio distributions. The grain growth exponent (n) and apparent activation energy (Q) are also systematically studied. It is found that grain boundary diffusion is the dominant controlling mechanism for BSCF while both grain boundary and lattice diffusions are the equally dominant controlling mechanisms for BSCF-Ni8. The fracture stress of BSCF is measured by both three-point and ring-on-ring bending tests at room and high temperatures. The fracture stress determined by three-point bending tests is consistently higher than that value measured by ring-on-ring tests for a given temperature. By utilising Weibull statistics a close prediction is made of the three-point values from the ring-on-ring values. Compared with the Young’s modulus of BSCF obtained from three-point bending tests between RT and 800 °C, the values determined from ring-on-ring tests shows a fairly good agreement. However, the Young’s modulus measured by both bending tests is lower than that value determined by micro-indentation tests. Hardness and fracture toughness are independent of grain size and grain orientation. Porosity is the dominant factor in Young’s modulus, hardness and fracture toughness of BSCF. The intrinsic hardness, intrinsic Young’s modulus and intrinsic fracture toughness of BSCF are also determined. The subcritical crack growth (SCG) of BSCF is also studied using constant load method at RT and constant stress rate method at 800 °C. It is found that that BSCF is not susceptible to SCG at RT but becomes relatively sensitive to SCG at 800 °C. The results are subsequently used as a basis for a strength–probability–time (SPT) lifetime prediction. Ni doping increases the Young’s modulus, hardness and fracture toughness of BSCF determined micro-indentation tests at RT. Both hardness and Young’s modulus show a non-monotonic trend with Ni doping content, which is…

Subjects/Keywords: 666; BSCF; SINTERING BEHAVIOUR; MECHANICAL PROPERTY; DOPING

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APA (6^th Edition):

Wang, L. (2016). Study of sintering behaviours and mechanical properties of barium strontium cobalt iron oxide ceramics. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/study-of-sintering-behaviours-and-mechanical-properties-of-barium-strontium-cobalt-iron-oxide-ceramics(cefae647-0ab8-4f69-9aa6-f91c6aa8239e).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.706249

Chicago Manual of Style (16^th Edition):

Wang, Li. “Study of sintering behaviours and mechanical properties of barium strontium cobalt iron oxide ceramics.” 2016. Doctoral Dissertation, University of Manchester. Accessed April 18, 2021. https://www.research.manchester.ac.uk/portal/en/theses/study-of-sintering-behaviours-and-mechanical-properties-of-barium-strontium-cobalt-iron-oxide-ceramics(cefae647-0ab8-4f69-9aa6-f91c6aa8239e).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.706249.

MLA Handbook (7^th Edition):

Wang, Li. “Study of sintering behaviours and mechanical properties of barium strontium cobalt iron oxide ceramics.” 2016. Web. 18 Apr 2021.

Vancouver:

Wang L. Study of sintering behaviours and mechanical properties of barium strontium cobalt iron oxide ceramics. [Internet] [Doctoral dissertation]. University of Manchester; 2016. [cited 2021 Apr 18]. Available from: https://www.research.manchester.ac.uk/portal/en/theses/study-of-sintering-behaviours-and-mechanical-properties-of-barium-strontium-cobalt-iron-oxide-ceramics(cefae647-0ab8-4f69-9aa6-f91c6aa8239e).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.706249.

Council of Science Editors:

Wang L. Study of sintering behaviours and mechanical properties of barium strontium cobalt iron oxide ceramics. [Doctoral Dissertation]. University of Manchester; 2016. Available from: https://www.research.manchester.ac.uk/portal/en/theses/study-of-sintering-behaviours-and-mechanical-properties-of-barium-strontium-cobalt-iron-oxide-ceramics(cefae647-0ab8-4f69-9aa6-f91c6aa8239e).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.706249

8. Al-Harthy, Said Salim. Laboratory investigation of petrophysical properties of sandstone rocks under true triaxial stress.

Degree: PhD, 1999, Imperial College London

URL: http://hdl.handle.net/10044/1/8549

Subjects/Keywords: 551; Mechanical behaviour

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APA (6^th Edition):

Al-Harthy, S. S. (1999). Laboratory investigation of petrophysical properties of sandstone rocks under true triaxial stress. (Doctoral Dissertation). Imperial College London. Retrieved from http://hdl.handle.net/10044/1/8549

Chicago Manual of Style (16^th Edition):

Al-Harthy, Said Salim. “Laboratory investigation of petrophysical properties of sandstone rocks under true triaxial stress.” 1999. Doctoral Dissertation, Imperial College London. Accessed April 18, 2021. http://hdl.handle.net/10044/1/8549.

MLA Handbook (7^th Edition):

Al-Harthy, Said Salim. “Laboratory investigation of petrophysical properties of sandstone rocks under true triaxial stress.” 1999. Web. 18 Apr 2021.

Vancouver:

Al-Harthy SS. Laboratory investigation of petrophysical properties of sandstone rocks under true triaxial stress. [Internet] [Doctoral dissertation]. Imperial College London; 1999. [cited 2021 Apr 18]. Available from: http://hdl.handle.net/10044/1/8549.

Council of Science Editors:

Al-Harthy SS. Laboratory investigation of petrophysical properties of sandstone rocks under true triaxial stress. [Doctoral Dissertation]. Imperial College London; 1999. Available from: http://hdl.handle.net/10044/1/8549

University of Sydney

9. Miao, Tingyi. Nacre-like Aluminium Alloy Composite Plates for Ballistic Impact Applications .

Degree: 2019, University of Sydney

URL: http://hdl.handle.net/2123/21231

► It is a major scientific challenge to develop the light-weight materials with high performance simultaneously in diverse applications ranging from civil engineering to defence. Numerical… (more)

Subjects/Keywords: Layered structures; Plates; Impact Behaviour; Mechanical Testing

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APA (6^th Edition):

Miao, T. (2019). Nacre-like Aluminium Alloy Composite Plates for Ballistic Impact Applications . (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/21231

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):

Miao, Tingyi. “Nacre-like Aluminium Alloy Composite Plates for Ballistic Impact Applications .” 2019. Thesis, University of Sydney. Accessed April 18, 2021. http://hdl.handle.net/2123/21231.

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

MLA Handbook (7^th Edition):

Miao, Tingyi. “Nacre-like Aluminium Alloy Composite Plates for Ballistic Impact Applications .” 2019. Web. 18 Apr 2021.

Vancouver:

Miao T. Nacre-like Aluminium Alloy Composite Plates for Ballistic Impact Applications . [Internet] [Thesis]. University of Sydney; 2019. [cited 2021 Apr 18]. Available from: http://hdl.handle.net/2123/21231.

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

Council of Science Editors:

Miao T. Nacre-like Aluminium Alloy Composite Plates for Ballistic Impact Applications . [Thesis]. University of Sydney; 2019. Available from: http://hdl.handle.net/2123/21231

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

University of New South Wales

10. Mendis, Agampodi. Behaviour of reinforced crumbed rubber concrete (CRC) beams under static and repeated loading.

Degree: Engineering & Information Technology, 2017, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/59017 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48288/SOURCE02?view=true

► Crumbed Rubber Concrete (CRC) is made by partially or fully replacing fine aggregate from the conventional concrete mix with similar size crumb rubber particles, usually… (more)

▼ Crumbed Rubber Concrete (CRC) is made by partially or fully replacing fine aggregate from the conventional concrete mix with similar size crumb rubber particles, usually from scrap tyres, making it a sustainable alternative to normal concrete. Most of the previous studies on CRC investigated the influence of rubber particles on various aspects of the concrete by comparing the behaviours of different concrete mixes having same mix proportions except the proportion of crumb rubber. As a result, these studies compared the behaviours of concretes having different compressive strengths. This study aims to understand the behaviours of different CRC mixes of similar compressive strength and how they differ from the conventional concrete of same strength. To achieve this several CRC mixes having the similar compressive strength, and different mix proportions were developed, and specimens made from these mixes were used to compare their behaviour experimentally at a material level as well as at member level under various structural loads. In this study, flexural and shear behaviour of reinforced CRC beams were investigated under static load condition. Beams were also tested under repeated loading to evaluate their energy absorption capacity. These experimental results were used to compare the behaviour of similar strength CRC with different amount of rubber particles. Results were also compared with the predictions of design guidelines for conventional concrete to identify the difference between CRC and idealised conventional concrete of same compressive strength, and the applicability and accuracy of these guidelines on predicting the behaviour of CRC. Finally, the applicability of the existing constitutive models for conventional concrete for numerically simulating the behaviours of CRC structural members was examined. For this purpose, two constitutive models for concrete, available in commercial finite element software, were used to simulate the behaviours of the reinforced CRC beams and benchmarked against the experimental measurements. The study concluded that the similar strength CRC behaves similarly in material and structural level while having slightly reduced shear capacity. The energy absorption capacity of beams was not affected by rubber content. The available design standards and constitutive material models can be used in CRC with minor modifications to shear capacity and shear factor coefficient. Advisors/Committee Members: Al-Deen, Safat, Engineering & Information Technology, UNSW Canberra, UNSW, Ashraf, Mahmud, Engineering & Information Technology, UNSW Canberra, UNSW.

Subjects/Keywords: Flexural behaviour; Crumbed rubber concrete; Mechanical properties; Shear behaviour; Repeated loading

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APA (6^th Edition):

Mendis, A. (2017). Behaviour of reinforced crumbed rubber concrete (CRC) beams under static and repeated loading. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/59017 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48288/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Mendis, Agampodi. “Behaviour of reinforced crumbed rubber concrete (CRC) beams under static and repeated loading.” 2017. Doctoral Dissertation, University of New South Wales. Accessed April 18, 2021. http://handle.unsw.edu.au/1959.4/59017 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48288/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Mendis, Agampodi. “Behaviour of reinforced crumbed rubber concrete (CRC) beams under static and repeated loading.” 2017. Web. 18 Apr 2021.

Vancouver:

Mendis A. Behaviour of reinforced crumbed rubber concrete (CRC) beams under static and repeated loading. [Internet] [Doctoral dissertation]. University of New South Wales; 2017. [cited 2021 Apr 18]. Available from: http://handle.unsw.edu.au/1959.4/59017 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48288/SOURCE02?view=true.

Council of Science Editors:

Mendis A. Behaviour of reinforced crumbed rubber concrete (CRC) beams under static and repeated loading. [Doctoral Dissertation]. University of New South Wales; 2017. Available from: http://handle.unsw.edu.au/1959.4/59017 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48288/SOURCE02?view=true

11. Ilangovan, S. Investigation of the mechanical properties and wear behaviour of sand cast copper nickel tin alloys; -.

Degree: Engineering, 2004, Amrita Vishwa Vidyapeetham (University)

URL: http://shodhganga.inflibnet.ac.in/handle/10603/13062

►

The effect of strengthening by spinodal decomposition on the mechanical properties and the wear behavior has been investigated on cast copper-nickel-tin alloys. The investigation was… (more)

Subjects/Keywords: Mechanical Engineering; Copper; Mechanical properties; Nickel; Tin; Hardening; Tribological behaviour

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APA (6^th Edition):

Ilangovan, S. (2004). Investigation of the mechanical properties and wear behaviour of sand cast copper nickel tin alloys; -. (Thesis). Amrita Vishwa Vidyapeetham (University). Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/13062

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):

Ilangovan, S. “Investigation of the mechanical properties and wear behaviour of sand cast copper nickel tin alloys; -.” 2004. Thesis, Amrita Vishwa Vidyapeetham (University). Accessed April 18, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/13062.

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

MLA Handbook (7^th Edition):

Ilangovan, S. “Investigation of the mechanical properties and wear behaviour of sand cast copper nickel tin alloys; -.” 2004. Web. 18 Apr 2021.

Vancouver:

Ilangovan S. Investigation of the mechanical properties and wear behaviour of sand cast copper nickel tin alloys; -. [Internet] [Thesis]. Amrita Vishwa Vidyapeetham (University); 2004. [cited 2021 Apr 18]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/13062.

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

Council of Science Editors:

Ilangovan S. Investigation of the mechanical properties and wear behaviour of sand cast copper nickel tin alloys; -. [Thesis]. Amrita Vishwa Vidyapeetham (University); 2004. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/13062

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

12. Asgari Moslehabadi, Hamed. DYNAMIC MECHANICAL BEHAVIOR OF MAGNESIUM ALLOYS UNDER SHOCK LOADING CONDITION.

Degree: 2015, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2015-06-2087

► The use of magnesium and its alloys, as the lightest structural materials, to decrease the weight, improve the fuel efficiency and reduce the greenhouse gas… (more)

▼ The use of magnesium and its alloys, as the lightest structural materials, to decrease the weight, improve the fuel efficiency and reduce the greenhouse gas emissions has significantly increased in the automotive and aerospace industries in recent years. However, magnesium alloys are commonly used as die casting products. The current application of wrought magnesium alloy products is limited because of their poor ductility at room temperature due to the formation of a strong texture and restricted active deformation modes in wrought magnesium products. Moreover, to support the application of magnesium alloys in automobile and airplane components, their dynamic mechanical response must be determined to evaluate their behavior during impact events such as car crash and bird strike in airplanes. Therefore, in this research study, the dynamic mechanical behavior of magnesium alloys at high strain rates was investigated. The effects of initial texture, composition, strain rate and grain size on the deformation mechanism were also determined. Split Hopkinson Pressure Bar was used to investigate the dynamic mechanical behavior of the magnesium alloys. Texture analysis on the alloy prior and after shock loading was done using X-ray diffraction. Scanning electron microscopy was used to study the microstructural evolution in the alloys before and after shock loading. Chemical analysis and phase identification were done by energy dispersive spectroscopy and X-ray diffraction analysis, respectively. Additionally, twinning type and distribution was determined by means of orientation imaging microscopy whereas dislocation types and distribution was determined using transmission electron microscopy. A visco-plastic self-consistent simulation was used to corroborate the experimental textures and possible deformation mechanisms. The dynamic mechanical behavior of cast AZ and AE magnesium alloys with different chemistries was investigated at strain rates ranging between 800 to 1400 s-1 to determine the effects of composition on the response of the alloys to shock loading. It was found that an increase in the aluminum content of the AZ alloys increased the volume fraction of β-Mg17Al12 and Al4Mn phases, strength and strain hardening but, on the other hand, decreased the ductility and twinning fraction, particularly extension twinning fraction, for all the investigated strain rates. In addition, increasing the strain rate resulted in considerable increase in strength of the alloys. Texture measurements showed that shock loading of the AE alloys resulted in development of a stronger (00.2) basal texture in samples with higher content of yttrium at the investigated strain rates. Increasing the yttrium content of the cast AE alloys decreased twinning fraction but increased dislocation density and volume fraction of the Al2Y second phase. As a result, the tensile strength and ductility of the alloys increased which is an interesting result for high-strain rate applications of AE alloys in comparison to AZ alloys. The dynamic mechanical… Advisors/Committee Members: Szpunar, Jerzy A., Odeshi, Akindele G., Yang, Qiaoqin, Oguocha, Ikechukwuka N., Wegner, Leon D..

Subjects/Keywords: Magnesium alloys; Texture; Dynamic mechanical behavior; Anisotropy

11 more images…

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

APA (6^th Edition):

Asgari Moslehabadi, H. (2015). DYNAMIC MECHANICAL BEHAVIOR OF MAGNESIUM ALLOYS UNDER SHOCK LOADING CONDITION. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2015-06-2087

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):

Asgari Moslehabadi, Hamed. “DYNAMIC MECHANICAL BEHAVIOR OF MAGNESIUM ALLOYS UNDER SHOCK LOADING CONDITION.” 2015. Thesis, University of Saskatchewan. Accessed April 18, 2021. http://hdl.handle.net/10388/ETD-2015-06-2087.

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

MLA Handbook (7^th Edition):

Asgari Moslehabadi, Hamed. “DYNAMIC MECHANICAL BEHAVIOR OF MAGNESIUM ALLOYS UNDER SHOCK LOADING CONDITION.” 2015. Web. 18 Apr 2021.

Vancouver:

Asgari Moslehabadi H. DYNAMIC MECHANICAL BEHAVIOR OF MAGNESIUM ALLOYS UNDER SHOCK LOADING CONDITION. [Internet] [Thesis]. University of Saskatchewan; 2015. [cited 2021 Apr 18]. Available from: http://hdl.handle.net/10388/ETD-2015-06-2087.

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

Council of Science Editors:

Asgari Moslehabadi H. DYNAMIC MECHANICAL BEHAVIOR OF MAGNESIUM ALLOYS UNDER SHOCK LOADING CONDITION. [Thesis]. University of Saskatchewan; 2015. Available from: http://hdl.handle.net/10388/ETD-2015-06-2087

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

13. Ramachandran, Laavanya. Comportement électrique large bande des composites polymère - fils submicroniques d'or : corrélation avec la structure et les propriétés mécaniques : Broadband electrical behavior of polymer - submicronic gold nanowire composites : correlation between structure and mechanical properties.

Degree: Docteur es, Sciences et génie des matériaux, 2017, Université Toulouse III – Paul Sabatier

URL: http://www.theses.fr/2017TOU30072

►

L'objectif principal de ce travail est d'étudier les propriétés d'un composite polymère-métal d'un point de vue physique, thermique, mécanique et électrique large bande. Pour cela,… (more)

▼

L'objectif principal de ce travail est d'étudier les propriétés d'un composite polymère-métal d'un point de vue physique, thermique, mécanique et électrique large bande. Pour cela, des fils d'or à haut facteur de forme (190) ont été élaborés par un procédé d'électrodéposition dans un template. Les fils submicroniques d'or ont été dispersés dans une matrice polymère PVDF pour l'élaboration des composites conducteurs faiblement chargés. Le comportement électrique des composites met en évidence le phénomène de la percolation électrique, avec un seuil de 1,33 %vol. La dispersion des fils submicroniques d'or au sein de la matrice PVDF est homogène, avec une légère orientation. L'analyse mécanique permet de mettre en évidence le rôle de renfort des fils d'or dans la matrice PVDF et l'influence des fils sur la structure physique du PVDF. Cela se traduit par une rigidification de la matrice PVDF et plus particulièrement l'effet sur la relaxation ac , associée à l'interface cristallite-phase amorphe du PVDF. L'étude de la conductivité statique et dynamique en basse (10-2 à 106 Hz) et haute (106 à 109 Hz) fréquence montre un changement de régime de transport de charge avec une activation thermique. La conduction par tunneling est prédominante à basse température, tandis que la conductivité au-delà est expliquée par les modèles d'Efros et Shklovskii et le modèle de saut de barrières corrélés (CBH), respectivement pour la partie statique et dynamique. Les paramètres déterminés avec les modèles présentent une bonne corrélation avec les propriétés mécaniques, ce qui permet d'améliorer la compréhension des phénomènes de transport de charge dans des systèmes hétérogènes tels les composites polymère-métal faiblement chargés.

The aim of this work is to study the properties of a polymer-metal composite, with regards to physical, thermal, mechanical and broad band electrical analyses. High aspect ratio gold nanowires (Au NW) were prepared using a template electrodeposition method (aspect ratio of 190 determined by image analysis). The gold nanowires were dispersed in a PVDF polymer matrix to form low-filled conducting composites. The electrical conductivity of the composites exhibit electrical percolation behaviour with a critical volume fraction of 1.33%. SEM images show a slightly oriented but homogenous dispersion of AU NWs within the PVDF matrix. Mechanical analysis confirms that the homogenous dispersion Au NWs reinforces the PVDF matrix and highlights the influence of Au NWs on the physical structure of the PVDF matrix. This is confirmed by an increase in G' values and more specifically the ac relaxation process (associated with the crystallite-amorphous phase interface). Analysis of static and dynamic conductivity for low (10-2 to 106 Hz) and high frequency (106 to 109 Hz) regions reveals a thermally-activated charge transport process: tunneling being the predominant mechanism at low temperatures, the Efros and Shklovskii (ES) and Correlated Barrier Hopping (CBH) models being responsible for static and dynamic conductivity,…

Advisors/Committee Members: Demont, Philippe (thesis director), Lonjon, Antoine (thesis director).

Subjects/Keywords: Comportement électrique; Comportement diélectrique; Fils submicroniques d'or; Propriétés physiques; Comportement mécanique; Dielectric behaviour; Electrical behaviour; Gold nanowires; Physical properties; Mechanical behaviour

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

APA (6^th Edition):

Ramachandran, L. (2017). Comportement électrique large bande des composites polymère - fils submicroniques d'or : corrélation avec la structure et les propriétés mécaniques : Broadband electrical behavior of polymer - submicronic gold nanowire composites : correlation between structure and mechanical properties. (Doctoral Dissertation). Université Toulouse III – Paul Sabatier. Retrieved from http://www.theses.fr/2017TOU30072

Chicago Manual of Style (16^th Edition):

Ramachandran, Laavanya. “Comportement électrique large bande des composites polymère - fils submicroniques d'or : corrélation avec la structure et les propriétés mécaniques : Broadband electrical behavior of polymer - submicronic gold nanowire composites : correlation between structure and mechanical properties.” 2017. Doctoral Dissertation, Université Toulouse III – Paul Sabatier. Accessed April 18, 2021. http://www.theses.fr/2017TOU30072.

MLA Handbook (7^th Edition):

Ramachandran, Laavanya. “Comportement électrique large bande des composites polymère - fils submicroniques d'or : corrélation avec la structure et les propriétés mécaniques : Broadband electrical behavior of polymer - submicronic gold nanowire composites : correlation between structure and mechanical properties.” 2017. Web. 18 Apr 2021.

Vancouver:

Ramachandran L. Comportement électrique large bande des composites polymère - fils submicroniques d'or : corrélation avec la structure et les propriétés mécaniques : Broadband electrical behavior of polymer - submicronic gold nanowire composites : correlation between structure and mechanical properties. [Internet] [Doctoral dissertation]. Université Toulouse III – Paul Sabatier; 2017. [cited 2021 Apr 18]. Available from: http://www.theses.fr/2017TOU30072.

Council of Science Editors:

Ramachandran L. Comportement électrique large bande des composites polymère - fils submicroniques d'or : corrélation avec la structure et les propriétés mécaniques : Broadband electrical behavior of polymer - submicronic gold nanowire composites : correlation between structure and mechanical properties. [Doctoral Dissertation]. Université Toulouse III – Paul Sabatier; 2017. Available from: http://www.theses.fr/2017TOU30072

14. Daryadel, Seyed Soheil. Dynamic response of glass under low-velocity impact and high strain-rate compression loading.

Degree: M.S. in Engineering Science, Mechanical Engineering, 2015, University of Mississippi

URL: https://egrove.olemiss.edu/etd/1330

► In this research, the dynamic response and energy absorption characteristics of four different types of commercially available glass have been investigated experimentally. Soda Lime,… (more)

Subjects/Keywords: Dynamic mechanical behavior; Glass; Low velocity impact; SHPB; Mechanical Engineering

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APA (6^th Edition):

Daryadel, S. S. (2015). Dynamic response of glass under low-velocity impact and high strain-rate compression loading. (Thesis). University of Mississippi. Retrieved from https://egrove.olemiss.edu/etd/1330

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):

Daryadel, Seyed Soheil. “Dynamic response of glass under low-velocity impact and high strain-rate compression loading.” 2015. Thesis, University of Mississippi. Accessed April 18, 2021. https://egrove.olemiss.edu/etd/1330.

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

MLA Handbook (7^th Edition):

Daryadel, Seyed Soheil. “Dynamic response of glass under low-velocity impact and high strain-rate compression loading.” 2015. Web. 18 Apr 2021.

Vancouver:

Daryadel SS. Dynamic response of glass under low-velocity impact and high strain-rate compression loading. [Internet] [Thesis]. University of Mississippi; 2015. [cited 2021 Apr 18]. Available from: https://egrove.olemiss.edu/etd/1330.

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

Council of Science Editors:

Daryadel SS. Dynamic response of glass under low-velocity impact and high strain-rate compression loading. [Thesis]. University of Mississippi; 2015. Available from: https://egrove.olemiss.edu/etd/1330

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

Lehigh University

15. Gordon, Jerard. Fatigue Crack Growth Analysis of 3D Printed Type 304 Stainless Steel.

Degree: PhD, Mechanical Engineering, 2018, Lehigh University

URL: https://preserve.lehigh.edu/etd/4234

► The viability of modern engineering structures and materials depends on actively designing against fatigue, which accounts for the majority of mechanical failures. While additive… (more)

▼ The viability of modern engineering structures and materials depends on actively designing against fatigue, which accounts for the majority of mechanical failures. While additive manufacturing (AM) offers numerous advantages to conventional manufacturing techniques, the cyclic behavior of AM parts must be understood before they can be safely used in areas such as the aerospace and biomedical industries. In this research, the behavior of austenitic steel components produced via direct energy deposition (DED) wire and arc additive manufacturing (WAAM) under cyclic loading was investigated. Paris-Law fatigue crack growth parameters were determined from experimental testing in an effort to deduce location-dependent properties and to compare to published data for the conventional material. Statistical ANOVA analysis provided inconsequential evidence of the dependence of damage accumulation on location or position within the WAAM structure. Further scanning electron microscopy (SEM), light optical microscopy (LOM), x-ray diffraction (XRD), and electron backscatter detection (EBSD) investigation showed compressive residual stress, texture and large grain sizes resulting from high thermal gradients in the AM process. Primarily it was discovered that WAAM thermal gradients and resulting material behavior, led to a decrease in damage propagation as compared to the conventional material at a given stress intensity range within the Paris-Law regime in austenitic steel. Additionally, Safe Life analyses were undertaken for WAAM austenitic steel. Experimental results of the cyclic response matched closely with literature for wrought austenitic steel, indicating that materials produced by WAAAM are not adversely affected by processed induced imperfections (e.g. porosity) such as other metal AM processes. In subsequent fracture surface investigation, large shear lips and microvoid coalescence was discovered which is typical in conventionally processed austenitic steels. Inelastic strain accumulation (ratchetting) behavior was compared to predictions from finite element analyses using a combined Isotropic and Chaboche Non-Linear Kinematic Hardening material model which accurately captures the yield surface translation during cyclic loading. Experimental results displayed comparable ratcheting strains as predicted by the finite element model. Primarily it was discovered that continuum scale plasticity modeling can be used to predict ratcheting strain in AM austenitic steel; however discrepancies existed due to complex material behavior observed at the microstructural level using SEM and EBSD. Further investigations are therefore necessary for better prediction of the deformation response of additively manufactured metals, which will require multiscale efforts such as phase field modeling, crystal plasticity, and probabilistic simulation techniques. Advisors/Committee Members: Harlow, Gary.

Subjects/Keywords: Additive manufacturing; Fatigue; Mechanical Behavior; Ratcheting; Stainless Steel; Welding; Mechanical Engineering

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

APA (6^th Edition):

Gordon, J. (2018). Fatigue Crack Growth Analysis of 3D Printed Type 304 Stainless Steel. (Doctoral Dissertation). Lehigh University. Retrieved from https://preserve.lehigh.edu/etd/4234

Chicago Manual of Style (16^th Edition):

Gordon, Jerard. “Fatigue Crack Growth Analysis of 3D Printed Type 304 Stainless Steel.” 2018. Doctoral Dissertation, Lehigh University. Accessed April 18, 2021. https://preserve.lehigh.edu/etd/4234.

MLA Handbook (7^th Edition):

Gordon, Jerard. “Fatigue Crack Growth Analysis of 3D Printed Type 304 Stainless Steel.” 2018. Web. 18 Apr 2021.

Vancouver:

Gordon J. Fatigue Crack Growth Analysis of 3D Printed Type 304 Stainless Steel. [Internet] [Doctoral dissertation]. Lehigh University; 2018. [cited 2021 Apr 18]. Available from: https://preserve.lehigh.edu/etd/4234.

Council of Science Editors:

Gordon J. Fatigue Crack Growth Analysis of 3D Printed Type 304 Stainless Steel. [Doctoral Dissertation]. Lehigh University; 2018. Available from: https://preserve.lehigh.edu/etd/4234

Anna University

16. Kailasanathan, C. Experimentation on mechanical behaviour of ceramic reinforced nanohydroxyapatite gelatin composites for bone grafting; -.

Degree: Mechanical Engineering, 2014, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/25176

►

Nano bio composites have emerged recently as an efficient strategy to upgrade the structural and functional properties of synthetic bone grafts Bioactive ceramics have attracted… (more)

Subjects/Keywords: Biocomposites; Bone grafts; Ceramic composites; Fabricate biocomposites; Gelatin; Mechanical behaviour; Mechanical engineering; Nanohydroxyapatite

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APA (6^th Edition):

Kailasanathan, C. (2014). Experimentation on mechanical behaviour of ceramic reinforced nanohydroxyapatite gelatin composites for bone grafting; -. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/25176

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):

Kailasanathan, C. “Experimentation on mechanical behaviour of ceramic reinforced nanohydroxyapatite gelatin composites for bone grafting; -.” 2014. Thesis, Anna University. Accessed April 18, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/25176.

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

MLA Handbook (7^th Edition):

Kailasanathan, C. “Experimentation on mechanical behaviour of ceramic reinforced nanohydroxyapatite gelatin composites for bone grafting; -.” 2014. Web. 18 Apr 2021.

Vancouver:

Kailasanathan C. Experimentation on mechanical behaviour of ceramic reinforced nanohydroxyapatite gelatin composites for bone grafting; -. [Internet] [Thesis]. Anna University; 2014. [cited 2021 Apr 18]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/25176.

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

Council of Science Editors:

Kailasanathan C. Experimentation on mechanical behaviour of ceramic reinforced nanohydroxyapatite gelatin composites for bone grafting; -. [Thesis]. Anna University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/25176

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

Indian Institute of Science

17. Kandasami, Ramesh Kannan. Experimental Studies on The Mechanical Behaviour of Cohesive Frictional Granular Materials.

Degree: PhD, Faculty of Engineering, 2017, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/2680

► Thss thesis presents the results of an experimental programme on the static mono-tonic response of cohesive-frictional granular materials. The purpose of this experimental programme was… (more)

▼ Thss thesis presents the results of an experimental programme on the static mono-tonic response of cohesive-frictional granular materials. The purpose of this experimental programme was to gain insight into the mechanical behaviour of uncemented sands, and sands with small percentages of cementation. With this objective in sight, the research involved understanding and delineating the e ects of four variables: the intermediate principal stress, stress inclination, cohesion (or cementation), and particle morphology. The hollow cylinder torsion (HCT) apparatus, which allows control over both the magnitude and direction of principal stresses, was used in this study to carry out a series of elemental tests on the model materials. The test results were analysed in a plasticity theory based framework of critical state soil mechanics. Drained and undrained HCT tests were conducted on a model angular sand to understand the combined influence of intermediate principal stress ratio (b) and principal stress inclination ( ). Sand specimens were reconstituted to a given density and confining pressure, and were sheared to large strains towards a critical state. The stresses at the critical state with varying `b' were mapped on an octahedral plane to obtain a critical state locus. The shape of this locus closely resembles a curved triangle. Also these specimens showed increased non-coaxiality between the stress and strain increment directions at lower strains. This non-coaxiality decreased significantly, and the response at the critical state was by and large coaxial. The effect of `b' and ` ' on the flow potential, phase transformation, and critical state was also investigated. At phase transformation, ` ' plays a more dominant role in determining the flow potential than `b'. The shape and size of the critical state locus remained the same immaterial of the drainage conditions. Next, small amounts of cohesion (using ordinary Portland cement) was added to this sand ensemble to study the mechanical behaviour of weakly cemented sands. The peak in the stress strain curve was used to signal the breakdown of cohesion further leading to a complete destructuring of the sand at the critical state. The response of the cemented sand changes from brittle to ductile with increase in confining pressure, while reverses with increase in density and `b'. Stress-dilatancy response for the weakly cemented materials shows the non coincidence of peak stress ratio and maximum value of dilation unlike purely frictional materials. This mismatch in peak stress ratio and maximum dilation diminishes with increase in confining pressure. The peak stress (cemented structured sand) locus and the critical state (destructured) locus were constructed on the octahedral plane from these HCT tests. The critical state locus of the cemented sand when it is completely destructured almost coincides with the critical state locus of the clean sand. Using this experimental data set, some important stress-dilatancy relationships (like Zhang and Salgado) and failure… Advisors/Committee Members: urthy, Tejas G (advisor).

Subjects/Keywords: Cohesive Frictional Granular Materials; Granular Materials-Mechanical Behaviour; Cemented Sands; Sands Mechanical Behavior; Weakly Cemented Sands; Hollow Cylinder Torsion; Frictional Granular Materials; Particle Morphology; Civil Engineering

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APA (6^th Edition):

Kandasami, R. K. (2017). Experimental Studies on The Mechanical Behaviour of Cohesive Frictional Granular Materials. (Doctoral Dissertation). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/2680

Chicago Manual of Style (16^th Edition):

Kandasami, Ramesh Kannan. “Experimental Studies on The Mechanical Behaviour of Cohesive Frictional Granular Materials.” 2017. Doctoral Dissertation, Indian Institute of Science. Accessed April 18, 2021. http://etd.iisc.ac.in/handle/2005/2680.

MLA Handbook (7^th Edition):

Kandasami, Ramesh Kannan. “Experimental Studies on The Mechanical Behaviour of Cohesive Frictional Granular Materials.” 2017. Web. 18 Apr 2021.

Vancouver:

Kandasami RK. Experimental Studies on The Mechanical Behaviour of Cohesive Frictional Granular Materials. [Internet] [Doctoral dissertation]. Indian Institute of Science; 2017. [cited 2021 Apr 18]. Available from: http://etd.iisc.ac.in/handle/2005/2680.

Council of Science Editors:

Kandasami RK. Experimental Studies on The Mechanical Behaviour of Cohesive Frictional Granular Materials. [Doctoral Dissertation]. Indian Institute of Science; 2017. Available from: http://etd.iisc.ac.in/handle/2005/2680

18. Drakakaki, Argyro. Μελέτη της επίδρασης της βλάβης διάβρωσης στη μηχανική συμπεριφορά του χάλυβα οπλισμού σκυροδέματος.

Degree: 2018, University of Patras; Πανεπιστήμιο Πατρών

URL: http://hdl.handle.net/10442/hedi/45392

► As it is widely known, the majority of the reinforced concrete structures located in coastal areas, suffer from the consequences of the corrosion factor. Chloride… (more)

▼ As it is widely known, the majority of the reinforced concrete structures located in coastal areas, suffer from the consequences of the corrosion factor. Chloride induced corrosion, in synergy with other hazardous factors, such as seismic actions or air pollutant emissions, is really harmful for the structures. The absence of rehabilitation actions is critical as well. The derived drop of durability, raises issues of security and reliability, concerning the structural integrity of the structures. Consequently, a great demand for handling such structures, is created.Although durability of the reinforced concrete structures is a major issue, only recently it captured the scientific community’s interest. This belated response resulted in lack of the quantification of the phenomenon, which was the reason for the non-inclusion of the issue in the applicable Standards for Rehabilitation. The extended study, analysis and quantification of the corrosion concequences premise laboratory reproduction of the corrosion phenomenon, with the use of accelerated experimental techniques.In the present dissertation thesis, an extended study was conducted, concerning the consequences of the corrosion phenomenon on steel reinforcement, not only as far as its mechanichal behavior is concerned, but also on the whole material structure.Precisely, several measurements were taken from real structures, emphasizing on regions of major importance for their structural integrity and their future extention, such as the protruding areas of steel reinforcement. The results that emerged raised questions about the actual load carrying capacity and the reliability of the unfinished reinforced concrete constructions, which remain inactive for a long period of time.Degradation of the mechanical performance of steel and the need to study further this phenomenon, led to the use of laboratory techniques of rapid simulation and reproduction of the corrosive environment. The methods used were salt spray chamber and impressed current density technique. Exposure conditions XS1, according to EN206 standard, were simulated for both corrosion methods. Bare and semi-embedded specimens were exposed to the corrosive media. The aim was to study the effect of the chlorides action on the unprotected surface of steel reinforcement as well as to evaluate their impact on the protruding area of the semi-embedded samples. The results were correlated to the measurements taken from real structures. Aditionally, two reinforced concrete columns were constructed (scale 1:2). Impressed current was used to corrode one of the columns, at a predetermined height from its bottom. Both columns were tested under constant vertical load with the simultaneous imposition of a horizontal deformation (drifts). The whole load constitutes a mechanical analog of seismic phenomena.The goal was to estimate the seismic response of the columns under the influence of both the corrosive agent and the mechanical strain, in areas characterized as “mechanically sensitive” for the constructions, given that…

Subjects/Keywords: Διάβρωση; Χάλυβας; Μηχανική συμπεριφορά; Corrosion; Mechanical behaviour; Steel reinforcements

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APA (6^th Edition):

Drakakaki, A. (2018). Μελέτη της επίδρασης της βλάβης διάβρωσης στη μηχανική συμπεριφορά του χάλυβα οπλισμού σκυροδέματος. (Thesis). University of Patras; Πανεπιστήμιο Πατρών. Retrieved from http://hdl.handle.net/10442/hedi/45392

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):

Drakakaki, Argyro. “Μελέτη της επίδρασης της βλάβης διάβρωσης στη μηχανική συμπεριφορά του χάλυβα οπλισμού σκυροδέματος.” 2018. Thesis, University of Patras; Πανεπιστήμιο Πατρών. Accessed April 18, 2021. http://hdl.handle.net/10442/hedi/45392.

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

MLA Handbook (7^th Edition):

Drakakaki, Argyro. “Μελέτη της επίδρασης της βλάβης διάβρωσης στη μηχανική συμπεριφορά του χάλυβα οπλισμού σκυροδέματος.” 2018. Web. 18 Apr 2021.

Vancouver:

Drakakaki A. Μελέτη της επίδρασης της βλάβης διάβρωσης στη μηχανική συμπεριφορά του χάλυβα οπλισμού σκυροδέματος. [Internet] [Thesis]. University of Patras; Πανεπιστήμιο Πατρών; 2018. [cited 2021 Apr 18]. Available from: http://hdl.handle.net/10442/hedi/45392.

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

Council of Science Editors:

Drakakaki A. Μελέτη της επίδρασης της βλάβης διάβρωσης στη μηχανική συμπεριφορά του χάλυβα οπλισμού σκυροδέματος. [Thesis]. University of Patras; Πανεπιστήμιο Πατρών; 2018. Available from: http://hdl.handle.net/10442/hedi/45392

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

19. Raju B R. Some investigations on tribological behaviour and machining of fiber reinforced polymeric composites;.

Degree: Mechanical engineering, 2014, Kuvempu University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/20077

In the last two decades research has shifted from monolithic materials to composite materials to fulfill the global demand for light weight high strength to weight ratio aesthetic environment friendly materials with enhanced properties like strength wear and corrosion resistance

Advisors/Committee Members: Swamy R P.

Subjects/Keywords: Tribological behaviour; Fiber reinforced polymeric composities; Mechanical engineering

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APA (6^th Edition):

R, R. B. (2014). Some investigations on tribological behaviour and machining of fiber reinforced polymeric composites;. (Thesis). Kuvempu University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/20077

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):

R, Raju B. “Some investigations on tribological behaviour and machining of fiber reinforced polymeric composites;.” 2014. Thesis, Kuvempu University. Accessed April 18, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/20077.

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

MLA Handbook (7^th Edition):

R, Raju B. “Some investigations on tribological behaviour and machining of fiber reinforced polymeric composites;.” 2014. Web. 18 Apr 2021.

Vancouver:

R RB. Some investigations on tribological behaviour and machining of fiber reinforced polymeric composites;. [Internet] [Thesis]. Kuvempu University; 2014. [cited 2021 Apr 18]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/20077.

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

Council of Science Editors:

R RB. Some investigations on tribological behaviour and machining of fiber reinforced polymeric composites;. [Thesis]. Kuvempu University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/20077

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

Anna University

20. Sumathi M. Studies on densification and strain hardening behaviour of cu sic preforms during cold upsetting;.

Degree: densification and strain hardening behaviour of cu sic preforms during cold upsetting, 2014, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/25726

►

Powder forming is a natural extension of the conventional press newlineand sinter PM process which has long been recognized as an effective newlinetechnology for producing… (more)

Subjects/Keywords: cu sic preforms; mechanical engineering; strain hardening behaviour

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APA (6^th Edition):

M, S. (2014). Studies on densification and strain hardening behaviour of cu sic preforms during cold upsetting;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/25726

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):

M, Sumathi. “Studies on densification and strain hardening behaviour of cu sic preforms during cold upsetting;.” 2014. Thesis, Anna University. Accessed April 18, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/25726.

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

MLA Handbook (7^th Edition):

M, Sumathi. “Studies on densification and strain hardening behaviour of cu sic preforms during cold upsetting;.” 2014. Web. 18 Apr 2021.

Vancouver:

M S. Studies on densification and strain hardening behaviour of cu sic preforms during cold upsetting;. [Internet] [Thesis]. Anna University; 2014. [cited 2021 Apr 18]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/25726.

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

Council of Science Editors:

M S. Studies on densification and strain hardening behaviour of cu sic preforms during cold upsetting;. [Thesis]. Anna University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/25726

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

Linnaeus University

21. Thamel, Prasadini. Classification of Articulated hauler braking behaviours.

Degree: Mechanical Engineering, 2019, Linnaeus University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-95146

► This study is performed to identify the customer braking behaviors of Articulated haulers. The data files from the different customer sites are used to… (more)

Subjects/Keywords: Emergency braking; Driver braking behaviour; Active Hazard braking; Mechanical Engineering; Maskinteknik

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APA (6^th Edition):

Thamel, P. (2019). Classification of Articulated hauler braking behaviours. (Thesis). Linnaeus University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-95146

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):

Thamel, Prasadini. “Classification of Articulated hauler braking behaviours.” 2019. Thesis, Linnaeus University. Accessed April 18, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-95146.

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

MLA Handbook (7^th Edition):

Thamel, Prasadini. “Classification of Articulated hauler braking behaviours.” 2019. Web. 18 Apr 2021.

Vancouver:

Thamel P. Classification of Articulated hauler braking behaviours. [Internet] [Thesis]. Linnaeus University; 2019. [cited 2021 Apr 18]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-95146.

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

Council of Science Editors:

Thamel P. Classification of Articulated hauler braking behaviours. [Thesis]. Linnaeus University; 2019. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-95146

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

University of Windsor

22. Alam, Mohammad Khurshed-Ul. Characterization of Laser-Cladded AISI 420 Martensitic Stainless Steel for Additive Manufacturing Applications.

Degree: PhD, Mechanical, Automotive, and Materials Engineering, 2019, University of Windsor

URL: https://scholar.uwindsor.ca/etd/8134

► Laser cladding is an additive manufacturing (AM) process that uses lasers to melt and deposit metallic powders in layer by layer to coat a substrate… (more)

▼ Laser cladding is an additive manufacturing (AM) process that uses lasers to melt and deposit metallic powders in layer by layer to coat a substrate or to build three dimensional object. However, the AM industry encounters problems in handling residual stresses in the cladded parts or coating that lead to high hardness and distortion. Also, anisotropic properties developed in the laser-cladded AM parts are a challenge to use them as a functional component. This study aims to understand those problems with the laser-cladding AM process using AISI 420 martensitic stainless steel (MSS) powder in a coaxial direct powder deposition method. Primarily, this study focuses on the effect of process parameters, microstructural evolution, and associated residual stress development in the single bead of laser-cladded 420 MSS. Subsequently, the study was expanded to analyze the mechanical behavior of additive manufactured 3D samples using systematic approaches with X-ray diffraction, scanning and transmission electron microscopy (SEM/TEM), electron backscattered diffraction (EBSD) and MTS mechanical testing frame. This study revealed that laser speed has the most significant effect on the microhardness, while the powder feed rate has the most significant effect on the bead geometry. A detailed TEM study discovered various morphologies of martensitic phases that explained the reason behind the development of residual stress throughout the three zones, such as bead zone (BZ), dilution zone (DZ), and heat affected zone (HAZ) in a single bead clad. A high profile tensile residual stress (310–486 MPa) was observed in the upper BZ, while compressive stress (420–1000 MPa) was seen in the rest of the BZ and the DZ. This laser-cladded stainless steel vi showed a ~16% increase in yield strength (YS ~ 521 MPa), ~ 63% increase in tensile strength (TS ~ 1774 MPa), and a ~ 22% increase in ductility in terms of percentage of area reduction when compared with a similar 420 commercial grade MSS (YS - 483 MPa, TS - 1087 MPa), in the rolling direction with pre-hardened condition. The study showed that a post-cladding heat treatment at 565 °C for an hour reduced the tensile residual stress substantially in a single bead clad. A similar heat treatment also improved the fracture mode of 3D AM sample from brittle to ductile fracture and changed the anisotropic properties of the as-cladded sample in the transverse direction. This indicated that for design purposes, a simple post-cladding heat treatment (at 565 °C for an hour) is very important to minimize the anisotropy in the mechanical properties of as-cladded transverse sample. Also, it showed that a parts building technique with 30° angle to the base improved the ultimate tensile strength and partially eliminated the directionality issue. These findings could be important information for the designers with respect to “design for AM strategies.” It is expected that the above findings will be useful for the laser-based additive manufacturing application of AISI 420 martensitic stainless steel in… Advisors/Committee Members: Ruth Jill Urbanic.

Subjects/Keywords: Additive Manufacturing; Laser cladding; Martensitic stainless steel; Mechanical Behaviour; Microstructural evolution

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APA (6^th Edition):

Alam, M. K. (2019). Characterization of Laser-Cladded AISI 420 Martensitic Stainless Steel for Additive Manufacturing Applications. (Doctoral Dissertation). University of Windsor. Retrieved from https://scholar.uwindsor.ca/etd/8134

Chicago Manual of Style (16^th Edition):

Alam, Mohammad Khurshed-Ul. “Characterization of Laser-Cladded AISI 420 Martensitic Stainless Steel for Additive Manufacturing Applications.” 2019. Doctoral Dissertation, University of Windsor. Accessed April 18, 2021. https://scholar.uwindsor.ca/etd/8134.

MLA Handbook (7^th Edition):

Alam, Mohammad Khurshed-Ul. “Characterization of Laser-Cladded AISI 420 Martensitic Stainless Steel for Additive Manufacturing Applications.” 2019. Web. 18 Apr 2021.

Vancouver:

Alam MK. Characterization of Laser-Cladded AISI 420 Martensitic Stainless Steel for Additive Manufacturing Applications. [Internet] [Doctoral dissertation]. University of Windsor; 2019. [cited 2021 Apr 18]. Available from: https://scholar.uwindsor.ca/etd/8134.

Council of Science Editors:

Alam MK. Characterization of Laser-Cladded AISI 420 Martensitic Stainless Steel for Additive Manufacturing Applications. [Doctoral Dissertation]. University of Windsor; 2019. Available from: https://scholar.uwindsor.ca/etd/8134

Delft University of Technology

23. Neeft, E.A.C. Mechanical behaviour and diffusion of gas during neutron irradiation of actinides in ceramic inert matrices.

Degree: 2004, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; urn:NBN:nl:ui:24-uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; urn:NBN:nl:ui:24-uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; http://resolver.tudelft.nl/uuid:ebd3e942-650a-4f6c-b351-7c352d81095f

► Fission of actinides from nuclear waste in inert matrices (materials without uranium) can reduce the period in time that nuclear waste is more radiotoxic than… (more)

▼ Fission of actinides from nuclear waste in inert matrices (materials without uranium) can reduce the period in time that nuclear waste is more radiotoxic than uranium ore that is the rock from which ordinary reactor fuel is made. A pioneering study is performed with the inert matrices: MgO, MgAl2O4, Y3Al5O12, Y2O3 and CeO2-x. These inert matrices contain inclusions of actinide-oxides with a diameter of about 200 Î¼m. UO2 is used as a phase of actinides to simulate the implantation of fission products in inert matrix fuels. After neutron irradiation, inter-particle fracture was present in fuels with matrices that do not form a solid solution with UO2. These cracks are caused by swelling of the actinide phase and insufficient creep of the matrix. The diffusion length of fission gases is significantly reduced by inter-particle fracture and thereby fission gas releases till 50% were measured. This inter-particle fracture may be prevented when inert matrix fuels are fabricated with porous actinide inclusions embedded in inert matrices that are polluted by actinides. The amount of helium generated during neutron irradiation of a few actinides from nuclear waste can be far larger than the amount of fission gases. Parameters and diffusion mechanisms to simulate diffusion of helium in MgAl2O4 were derived by thermal evolution of He concentration profiles, atomistic calculations and numerical analysis using original definitions of diffusion coefficients for inert gas in materials with defects for single crystal as well as polycrystal media. This study shows that, amongst others, the material degradation of MgAl2O4, caused by the generated amount of defects and He during irradiation conditions, is acceptable. But the pioneering study with UO2 as a phase of actinides, shows that the solid state swelling by fission products in MgAl2O4 is about ten times larger than this swelling in 238UO2 that is the matrix in fuel for commercial reactors. The commercial feasibility of reduction of actinides from nuclear waste, by neutron irradiation in inert matrices, requires more research. Advisors/Committee Members: Van Veen, A., Verkooijen, A.H.M..

Subjects/Keywords: actinide transmutation; diffusion; mechanical behaviour

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

APA (6^th Edition):

Neeft, E. A. C. (2004). Mechanical behaviour and diffusion of gas during neutron irradiation of actinides in ceramic inert matrices. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; urn:NBN:nl:ui:24-uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; urn:NBN:nl:ui:24-uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; http://resolver.tudelft.nl/uuid:ebd3e942-650a-4f6c-b351-7c352d81095f

Chicago Manual of Style (16^th Edition):

Neeft, E A C. “Mechanical behaviour and diffusion of gas during neutron irradiation of actinides in ceramic inert matrices.” 2004. Doctoral Dissertation, Delft University of Technology. Accessed April 18, 2021. http://resolver.tudelft.nl/uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; urn:NBN:nl:ui:24-uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; urn:NBN:nl:ui:24-uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; http://resolver.tudelft.nl/uuid:ebd3e942-650a-4f6c-b351-7c352d81095f.

MLA Handbook (7^th Edition):

Neeft, E A C. “Mechanical behaviour and diffusion of gas during neutron irradiation of actinides in ceramic inert matrices.” 2004. Web. 18 Apr 2021.

Vancouver:

Neeft EAC. Mechanical behaviour and diffusion of gas during neutron irradiation of actinides in ceramic inert matrices. [Internet] [Doctoral dissertation]. Delft University of Technology; 2004. [cited 2021 Apr 18]. Available from: http://resolver.tudelft.nl/uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; urn:NBN:nl:ui:24-uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; urn:NBN:nl:ui:24-uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; http://resolver.tudelft.nl/uuid:ebd3e942-650a-4f6c-b351-7c352d81095f.

Council of Science Editors:

Neeft EAC. Mechanical behaviour and diffusion of gas during neutron irradiation of actinides in ceramic inert matrices. [Doctoral Dissertation]. Delft University of Technology; 2004. Available from: http://resolver.tudelft.nl/uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; urn:NBN:nl:ui:24-uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; urn:NBN:nl:ui:24-uuid:ebd3e942-650a-4f6c-b351-7c352d81095f ; http://resolver.tudelft.nl/uuid:ebd3e942-650a-4f6c-b351-7c352d81095f

University of Guelph

24. Bosnic, Matija. Sensitivity of Bulk Leg Tissue Stiffness to Muscle Activation.

Degree: Master of Applied Science, School of Engineering, 2019, University of Guelph

URL: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17451

► Lower limb tissue stiffness is contingent on various factors, including body composition, loading rates, and the geometry of the indenting object. In comparison to more… (more)

Subjects/Keywords: Soft Tissue; Activation; Stiffness; Exponential Model; Mechanical Behaviour; Indentation

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

APA (6^th Edition):

Bosnic, M. (2019). Sensitivity of Bulk Leg Tissue Stiffness to Muscle Activation. (Masters Thesis). University of Guelph. Retrieved from https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17451

Chicago Manual of Style (16^th Edition):

Bosnic, Matija. “Sensitivity of Bulk Leg Tissue Stiffness to Muscle Activation.” 2019. Masters Thesis, University of Guelph. Accessed April 18, 2021. https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17451.

MLA Handbook (7^th Edition):

Bosnic, Matija. “Sensitivity of Bulk Leg Tissue Stiffness to Muscle Activation.” 2019. Web. 18 Apr 2021.

Vancouver:

Bosnic M. Sensitivity of Bulk Leg Tissue Stiffness to Muscle Activation. [Internet] [Masters thesis]. University of Guelph; 2019. [cited 2021 Apr 18]. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17451.

Council of Science Editors:

Bosnic M. Sensitivity of Bulk Leg Tissue Stiffness to Muscle Activation. [Masters Thesis]. University of Guelph; 2019. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17451

25. Svensson, Natasha. Thermo-mechanical modelling of structural battery composites .

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

URL: http://hdl.handle.net/20.500.12380/301574

► Industries are searching for energy efficient zero-emission transport solutions to minimise environmental impact from transportation [1]. A possible solution to this can be the use… (more)

▼ Industries are searching for energy efficient zero-emission transport solutions to minimise environmental impact from transportation [1]. A possible solution to this can be the use of structural battery composites which combines the ability to take mechanical load while also store electrical energy [1], i.e. combining the functionalities of structures and batteries. The aim of this thesis is to develop a model which can predict the thermo-mechanical behaviour of a laminated structural battery composite. It is conducted in collaboration with an other master’s thesis which instead focus on the battery modelling [2]. The laminated structural battery composite studied in this project has a similar structure to a regular Li-ion battery. The simplified model, made in comsol, was constructed as a three-layered battery unit cell where each layer’s properties was approximated by using composite micro-mechanics models. The boundary conditions were such that only the top boundary was allowed to move while having a convective heat flux applied. As the behaviour is only modelled (numerical investigation), i.e. no manufacturing or testing was conducted on real batteries, there is no way to know how good the modelled prediction actually compares to the reality. Instead investigation is made as a sensitivity study, to see how different parameters change the outcome which includes time, generated heat in the battery cell, heat transfer coefficient of the heat flux and thicknesses of the different layers. The results show that after some time a steady state temperature will be reached as long as the heat transfer coefficient is non-zero. This steady state temperature is important for future thermal experiments as a too low temperature will give misleading results. This thesis has though shown that it can be controlled by changing e.g. the generated heat from the battery cell by changing the C-rate or the heat exchange with the surroundings. The conclusion is therefore that this developed framework, in combination with the collaborated thesis [2], can be used to guide future experiments on the thermo-mechanical behaviour of a laminated structural battery composite.

Subjects/Keywords: Structural battery composite; comsol; Finite Element; composite mechanics; thermal-mechanical behaviour

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APA (6^th Edition):

Svensson, N. (2020). Thermo-mechanical modelling of structural battery composites . (Thesis). Chalmers University of Technology. Retrieved from http://hdl.handle.net/20.500.12380/301574

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):

Svensson, Natasha. “Thermo-mechanical modelling of structural battery composites .” 2020. Thesis, Chalmers University of Technology. Accessed April 18, 2021. http://hdl.handle.net/20.500.12380/301574.

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

MLA Handbook (7^th Edition):

Svensson, Natasha. “Thermo-mechanical modelling of structural battery composites .” 2020. Web. 18 Apr 2021.

Vancouver:

Svensson N. Thermo-mechanical modelling of structural battery composites . [Internet] [Thesis]. Chalmers University of Technology; 2020. [cited 2021 Apr 18]. Available from: http://hdl.handle.net/20.500.12380/301574.

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

Council of Science Editors:

Svensson N. Thermo-mechanical modelling of structural battery composites . [Thesis]. Chalmers University of Technology; 2020. Available from: http://hdl.handle.net/20.500.12380/301574

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

University of Sydney

26. Gao, Peng. Effects of sample orientation and processing temperature on dynamic recrystallization and mechanical behaviours of a Mg alloy under high strain-rate deformation .

Degree: 2016, University of Sydney

URL: http://hdl.handle.net/2123/16495

► Mg alloys have been extensively investigated because they are promising engineering materials with a low density and high specific strengths. However, poor formability at low… (more)

▼ Mg alloys have been extensively investigated because they are promising engineering materials with a low density and high specific strengths. However, poor formability at low temperature has been a major obstacle limiting their widespread industrial applications. Recent investigations indicated that plastic deformation of Mg alloys at relatively high strain rates at high temperatures promotes dynamic recrystallization (DRX) and this substantially improves both their formability and mechanical properties. However, there are still some outstanding issues on DRX during high strain-rate deformation, which include (1) it is not clear how crystallographic orientation and initial microstructure affect DRX and (2) how strain rate influences the mechanical responses at different temperatures is largely unknown. A commonly used Mg alloy, AZ31 (Mg–3Al–1Zn, in wt. %), was used to explore the abovementioned two outstanding issues in this study. The microstructural evolution and mechanical properties of samples with three different grain orientations (the c-axis of the samples being generally 0°, 45° and 90° away from the loading direction) were investigated. The following major conclusions were reached: (1) sample orientation and the original twins affect significantly the DRX behaviour deformed under high strain rate at high temperature. To promote DRX, it is crucial to have significant local dislocation accumulation. This can be achieved by dislocation activities starting from the early stages of deformation and effective barriers that block the dislocation motion. Early activation of dislocation slip is achieved by appropriate sample orientation. Both deformation twins and pre-existing twins can act as barriers for dislocation activities. The effect of pre-existing twins becomes significant if there was no deformation twinning; (2) at high temperature, increasing strain rate dramatically refines grain sizes in all samples, leading to remarkable increase of the flow stresses. The strain rate effect on microstructural evolution varies remarkably with sample orientation; and (3) at high temperature, samples present different basal texture after the deformations at different strain rates. It is because the basal texture of non-DRX areas is getting significantly stronger with the increase of strain rate in some samples. Meanwhile, the ratio of non-DRX areas is considerably higher in these samples than the other sample.

Subjects/Keywords: Magnesium alloys; crystallographic orientation; dynamic recrystallization; twinning; strain rate; mechanical behaviour

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APA (6^th Edition):

Gao, P. (2016). Effects of sample orientation and processing temperature on dynamic recrystallization and mechanical behaviours of a Mg alloy under high strain-rate deformation . (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/16495

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):

Gao, Peng. “Effects of sample orientation and processing temperature on dynamic recrystallization and mechanical behaviours of a Mg alloy under high strain-rate deformation .” 2016. Thesis, University of Sydney. Accessed April 18, 2021. http://hdl.handle.net/2123/16495.

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

MLA Handbook (7^th Edition):

Gao, Peng. “Effects of sample orientation and processing temperature on dynamic recrystallization and mechanical behaviours of a Mg alloy under high strain-rate deformation .” 2016. Web. 18 Apr 2021.

Vancouver:

Gao P. Effects of sample orientation and processing temperature on dynamic recrystallization and mechanical behaviours of a Mg alloy under high strain-rate deformation . [Internet] [Thesis]. University of Sydney; 2016. [cited 2021 Apr 18]. Available from: http://hdl.handle.net/2123/16495.

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

Council of Science Editors:

Gao P. Effects of sample orientation and processing temperature on dynamic recrystallization and mechanical behaviours of a Mg alloy under high strain-rate deformation . [Thesis]. University of Sydney; 2016. Available from: http://hdl.handle.net/2123/16495

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

University of New South Wales

27. Huang, Ting. Characterisation of Mechanical Behaviour of Engineered Cementitious Composites under Static and Fatigue Loading.

Degree: Engineering & Information Technology, 2016, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/56376 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:40627/SOURCE02?view=true

► Engineered Cementitious Composites (ECCs) are a unique member of high performance fibre reinforced cementitious composites, featuring outstanding tensile strain-hardening capacity with superior tensile strain capacity… (more)

▼ Engineered Cementitious Composites (ECCs) are a unique member of high performance fibre reinforced cementitious composites, featuring outstanding tensile strain-hardening capacity with superior tensile strain capacity and multiple microcracking with self-controlled tight crack width. Due to the importance of the tensile behaviour of the ECC, a hierarchical multiscale modelling method is developed for effective and efficient characterisation of the mechanical behaviour of ECCs under static and fatigue tensile loading. A generic analytical model is developed for crack bridging analysis in short fibre reinforced cementitious composites such as ECCs, which is the characteristic mechanical behaviour of ECCs at the microscale and lower mesoscale. The model predicts well the crack bridging stress-crack opening displacement relation. A representative volume element (RVE) model is proposed to model the joint response of the uncracked matrix and multiple cracks of ECCs at the upper mesoscale. The material randomness of ECCs is also considered in the RVE model. The RVE model is analysed by a hybrid cohesive zone model-extended finite element method (hybrid CZM-XFEM) method introduced in this work, which is used to simulate the multiple cracks adaptively as well as describe the crack cohesive behaviour using a simplified efficient cohesive model proposed based on the crack bridging analysis at the microscale and lower mesoscale. To characterise the mechanical behaviour of ECCs under fatigue tensile loading, degradation models of the micromechanical properties are proposed, and a cycle-dependent crack bridging relation, which accounts for both the interface degradation and fibre fatigue rupture, is developed based on the degradation models. The bridging stress degradation of ECCs under fatigue loading is modelled through a cyclic analysis based on the multiscale modelling method and the cycle-dependent crack bridging relation. A polyvinyl alcohol (PVA) fibre reinforced ECC (PVA-ECC) by using a local sand instead of the normally used fine silica sand is developed. The effect of the mix proportion, specimen dimension on the static mechanical properties of the PVA-ECC is investigated experimentally. The characteristics of the variation in the static tensile properties of the ECC is also demonstrated. The crack bridging degradation of the PVA-ECC under fatigue tensile loading is tested. Advisors/Committee Members: Zhang, Yixia, Engineering & Information Technology, UNSW Canberra, UNSW, Lee, Chi King, Engineering & Information Technology, UNSW Canberra, UNSW, Su, Cheng, SCUT.

Subjects/Keywords: Fatigue; Static and fatigue; Engineered Cementitious Composite (ECC); Mechanical behaviour characterisation

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

APA (6^th Edition):

Huang, T. (2016). Characterisation of Mechanical Behaviour of Engineered Cementitious Composites under Static and Fatigue Loading. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/56376 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:40627/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Huang, Ting. “Characterisation of Mechanical Behaviour of Engineered Cementitious Composites under Static and Fatigue Loading.” 2016. Doctoral Dissertation, University of New South Wales. Accessed April 18, 2021. http://handle.unsw.edu.au/1959.4/56376 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:40627/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Huang, Ting. “Characterisation of Mechanical Behaviour of Engineered Cementitious Composites under Static and Fatigue Loading.” 2016. Web. 18 Apr 2021.

Vancouver:

Huang T. Characterisation of Mechanical Behaviour of Engineered Cementitious Composites under Static and Fatigue Loading. [Internet] [Doctoral dissertation]. University of New South Wales; 2016. [cited 2021 Apr 18]. Available from: http://handle.unsw.edu.au/1959.4/56376 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:40627/SOURCE02?view=true.

Council of Science Editors:

Huang T. Characterisation of Mechanical Behaviour of Engineered Cementitious Composites under Static and Fatigue Loading. [Doctoral Dissertation]. University of New South Wales; 2016. Available from: http://handle.unsw.edu.au/1959.4/56376 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:40627/SOURCE02?view=true

Delft University of Technology

28. Kortram, Jon (author). An experimental investigation of the effects of corrosion inhibitor on the mechanical properties of reservoir rock.

Degree: 2020, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:0df4ceb4-ef70-4ecb-9e6e-4e2f59d787e5

► Geothermal energy is one of the more sustainable alternatives to fossil fuels that could facilitate the energy transition. The production of geothermal energy incorporates the… (more)

▼ Geothermal energy is one of the more sustainable alternatives to fossil fuels that could facilitate the energy transition. The production of geothermal energy incorporates the use of corrosion inhibitors to protect the steel well-parts from the corrosive production fluid. The injection of inhibitors leads to a risk of exposing the reservoir rock to these solutions. Up until now no data has been published to describe the effects of the corrosion inhibitor on the mechanical reservoir rock properties. This thesis aims to remedy this situation by performing compressive triaxial experiments on rock samples which have been saturated with inhibitor solutions. Two rock types which are representative of geothermal reservoir rocks were tested using two different inhibitors. The results were compared to a set of control experiments performed on water-saturated samples. The sandstone experiments show no discernible difference between the different fluid-types. The limestone experiments do show a number of differences: The limestone samples that were saturated with the first inhibitor type saw an increase in rock cohesion and a decrease in internal angle of friction. In contrast limestone samples that were saturated with the second inhibitor saw a decrease in rock cohesion and an increase in internal angle of friction. The lack of difference between the sandstone samples could be attributed to the inert nature of the constituent minerals. Limestone minerals are chemically more reactive and even though the exact nature of the chemical processes which lead to the observed differences remains unclear, a number of potential explanations are provided. We suggest that the change in mechanical rock parameters in the limestone rock are a result of the adsorption of the inhibitor components onto the particle surface. This adsorption alters the particle surface charge which leads to a change of the electrostatic repulsive forces. Additionally the same adsorption may affect the interparticle friction of our rock samples. Advisors/Committee Members: Pluymakers, A.M.H. (mentor), Barnhoorn, A. (mentor), Bruhn, D.F. (mentor), Delft University of Technology (degree granting institution).

Subjects/Keywords: corrosion inhibitor; mechanical rock properties; Sandstone; Limestone; Failure behaviour

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APA (6^th Edition):

Kortram, J. (. (2020). An experimental investigation of the effects of corrosion inhibitor on the mechanical properties of reservoir rock. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:0df4ceb4-ef70-4ecb-9e6e-4e2f59d787e5

Chicago Manual of Style (16^th Edition):

Kortram, Jon (author). “An experimental investigation of the effects of corrosion inhibitor on the mechanical properties of reservoir rock.” 2020. Masters Thesis, Delft University of Technology. Accessed April 18, 2021. http://resolver.tudelft.nl/uuid:0df4ceb4-ef70-4ecb-9e6e-4e2f59d787e5.

MLA Handbook (7^th Edition):

Kortram, Jon (author). “An experimental investigation of the effects of corrosion inhibitor on the mechanical properties of reservoir rock.” 2020. Web. 18 Apr 2021.

Vancouver:

Kortram J(. An experimental investigation of the effects of corrosion inhibitor on the mechanical properties of reservoir rock. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Apr 18]. Available from: http://resolver.tudelft.nl/uuid:0df4ceb4-ef70-4ecb-9e6e-4e2f59d787e5.

Council of Science Editors:

Kortram J(. An experimental investigation of the effects of corrosion inhibitor on the mechanical properties of reservoir rock. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:0df4ceb4-ef70-4ecb-9e6e-4e2f59d787e5

University of New South Wales

29. Yu, Kuang. Nonlinear modelling and analysis of reinforced thermoplastic pipes for offshore applications.

Degree: Engineering & Information Technology, 2015, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/54962 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:36255/SOURCE02?view=true

► Reinforced thermoplastic pipes (RTPs) are considered as prospective alternatives to traditional steel pipes in various offshore oil and gas applications due to their attractive properties… (more)

▼ Reinforced thermoplastic pipes (RTPs) are considered as prospective alternatives to traditional steel pipes in various offshore oil and gas applications due to their attractive properties such as better corrosion resistance, high stiffness and strength to weight ratios and low maintenance costs .In this work , studies of the mechanical behaviour of RTPs composed of pipe grade polyethylene (PE) and aramid fibres, and subjected to various loads are conducted using Finite Elements Analysis (FEA). The RTP is modelled using shell elements available in Abaqus/Standard with both geometric and material nonlinearities considered. In order to model the material nonlinearity, equations describing the nonlinear stress-strain relationship of PE are adopted in the material models which reflect strain-dependent mechanical characteristics of PE and fibre-reinforcedPE composites during loading . Based on these models, numerical algorithms have been developed using the FORTRAN programming language and implemented through user-defined subroutines, UMATs . The developed modelling approach has been verified by comparisons with experimental and computational results reported in the literature.The pressure capacity of an RTP is investigated as it is a primary concern in designing offshore pipes. It was found that the nonlinear mechanical behaviour of PE enables the RTP to avoid premature material failures in the PE matrix, liner and cover. Since the spoolability of RTPs is essential in their installation process, their flexural behaviour is also analysed. The analysis showed that the estimation of the minimum allowable bend radius of the RTP can be improved by using the proposed modelling approach. It was found that the sufficient spoolability of RTPs can be alsoachieved by employing certain one and two angle-ply reinforcing layer systems, and the reel diameter could decreased by 24.29% . This will result in significant reduction in the transportation and material costs during the installation phase of the pipeline.Several combined loading cases are considered. For each load combination, parametric studies have been conducted. The failure modes are found to be dependent on loading paths and types of loads applied. Based on the computational results obtained, design guidelines and recommendations that could be used in practical design of RTPs for offshore applications are formulated. Advisors/Committee Members: Morozov, Evgeny, Engineering & Information Technology, UNSW Canberra, UNSW, Arif, Muhammad, Engineering & Information Technology, UNSW Canberra, UNSW, Shankar, Krishana, Engineering & Information Technology, UNSW Canberra, UNSW.

Subjects/Keywords: Nonlinear mechanical behaviour; Reinforced thermoplastic pipe (RTP); FE modelling; Offshore applications

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APA (6^th Edition):

Yu, K. (2015). Nonlinear modelling and analysis of reinforced thermoplastic pipes for offshore applications. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/54962 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:36255/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Yu, Kuang. “Nonlinear modelling and analysis of reinforced thermoplastic pipes for offshore applications.” 2015. Doctoral Dissertation, University of New South Wales. Accessed April 18, 2021. http://handle.unsw.edu.au/1959.4/54962 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:36255/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Yu, Kuang. “Nonlinear modelling and analysis of reinforced thermoplastic pipes for offshore applications.” 2015. Web. 18 Apr 2021.

Vancouver:

Yu K. Nonlinear modelling and analysis of reinforced thermoplastic pipes for offshore applications. [Internet] [Doctoral dissertation]. University of New South Wales; 2015. [cited 2021 Apr 18]. Available from: http://handle.unsw.edu.au/1959.4/54962 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:36255/SOURCE02?view=true.

Council of Science Editors:

Yu K. Nonlinear modelling and analysis of reinforced thermoplastic pipes for offshore applications. [Doctoral Dissertation]. University of New South Wales; 2015. Available from: http://handle.unsw.edu.au/1959.4/54962 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:36255/SOURCE02?view=true

Delft University of Technology

30. Tippersma, Nordin (author). Hydrogen Storage in Salt Caverns: Prediction of the Elasto-viscoplastic Behaviour of Rock Salt.

Degree: 2020, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:fdafac4c-5e73-4397-93d6-8dd016357a20

► A transition towards more renewable energy sources such as wind- and solar energy is underway. These sources can be unpredictable with regard to energy production… (more)

▼ A transition towards more renewable energy sources such as wind- and solar energy is underway. These sources can be unpredictable with regard to energy production and therefore energy storage has become a major concern. A promising technique, Underground Hydrogen Storage (UHS), converts excess energy into hydrogen and stores it underground, after which, by reversing the process, the stored energy can be used when the imbalance between supply and demand is great. Hydrogen storage in salt caverns is particularly attractive because of their high sealing capacity, low amount of cushion required, the inert nature of rock salt and high possible injection and withdrawal rates. For energy storage purposes, these salt caverns are exposed to different cyclic loading conditions during operation, resulting in variations in stress in and around the cavern. Investigation of the mechanical response of rock salt under cyclic loading conditions is essential for the safety assessment and usability of the cavern. The response of the system to varying loading conditions can be mainly divided into two groups, either time-dependent or stress-dependent. The main focus of this thesis is to record the stress-dependent behaviour of rock salt under varying loading conditions. More specifically, it focuses on nonlinearity that occurs due to viscoplasticity. This phenomenon can be described as the rate dependent behaviour of a material that occurs when a material exceeds a certain stress level, after which irreversible deformation occurs. This thesis describes the development of a 2D FEM (finite element method) simulator on an unstructured grid that captures the mechanical response. To model the stress-dependent behaviour, the viscoplastic model proposed by Desai is used. This model is based on the non-associated flow rule and takes into account material dilatancy and compressibility. In addition, the model allows for hardening, the tensile strength of rock salt and variation in yield behaviour with pressure variation. Sonar data from cavern EPE S43 is utilised to test the simulator. This case showed that irreversible deformation occurs as a result of the stress-dependent behaviour of rock salt. For this specific cavern, the total working volume of the cavern decreased roughly by 0.0003% over three operating cycles, indicating that viscoplastic deformation itself does not pose significant risks to the cyclic storage of hydrogen in salt caverns. Advisors/Committee Members: Hajibeygi, H. (mentor), Vardon, P.J. (graduation committee), Bertotti, G. (graduation committee), Muntendam-Bos, A.G. (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Hydrogen storage; Rock Salt; Underground hydrogen storage; Mechanical behaviour; numerical simulation

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

APA (6^th Edition):

Tippersma, N. (. (2020). Hydrogen Storage in Salt Caverns: Prediction of the Elasto-viscoplastic Behaviour of Rock Salt. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:fdafac4c-5e73-4397-93d6-8dd016357a20

Chicago Manual of Style (16^th Edition):

Tippersma, Nordin (author). “Hydrogen Storage in Salt Caverns: Prediction of the Elasto-viscoplastic Behaviour of Rock Salt.” 2020. Masters Thesis, Delft University of Technology. Accessed April 18, 2021. http://resolver.tudelft.nl/uuid:fdafac4c-5e73-4397-93d6-8dd016357a20.

MLA Handbook (7^th Edition):

Tippersma, Nordin (author). “Hydrogen Storage in Salt Caverns: Prediction of the Elasto-viscoplastic Behaviour of Rock Salt.” 2020. Web. 18 Apr 2021.

Vancouver:

Tippersma N(. Hydrogen Storage in Salt Caverns: Prediction of the Elasto-viscoplastic Behaviour of Rock Salt. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Apr 18]. Available from: http://resolver.tudelft.nl/uuid:fdafac4c-5e73-4397-93d6-8dd016357a20.

Council of Science Editors:

Tippersma N(. Hydrogen Storage in Salt Caverns: Prediction of the Elasto-viscoplastic Behaviour of Rock Salt. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:fdafac4c-5e73-4397-93d6-8dd016357a20

Open Access Theses and Dissertations