Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"elastic-plastic model"”.
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Prediction of erosion in cementitious materials subject to high thermal and pressure loading
… and British Aerospace Warton concerned with the modelling of onset of failure in limestone concrete, due to hot jet exhaust gases impinging on the concrete surface. The temperature distribution was produced using a constant jet temperature with a standard finite difference approximation and the …
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Constitutive modeling of advanced thermoset composites with application to sheet forming processes
… research is to develop constitutive material models that can be utilized for modeling thermoset composite response during sheet forming processes. A continuum model has been developed that accounts for temperature and rate dependencies and allows solid finite element modeling that tracks …
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Finite element analysis of shear band failure with particular reference to circular plate impact
… material nonlinearity in the form of a von Mises elastic-plastic model. The algorithms used in this work are dictated to a large degree by the emphasis which is placed upon efficiency, although this is not at the expense of accuracy. Numerical stability in the presence of severe stress gradients …
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Finite element analysis of shear resistant mechanisms for biolaminate interfaces
… layer with all materials exhibiting a decreasing elastic modulus, yield strength and density through the thickness. Experiments on ganoid scales revealed properties such as damage mitigation and energy dissipation that are unique to biological dermal armor. The objective of this investigation is …
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Evaluation of Elastic-Plastic and Damage Models for Ultra High Performance Concrete (UHPC)
… has previously been performed on constitutive modeling of NSC, constitutive modeling of HPC and UHPC is very limited and more research needs to be pursued in this area. Robust constitutive modeling will allow for accurate and reliable modeling and simulation of UHPC structures which is needed …
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Development of meso-scale flexible cutting tool for micro-groove cutting in steel
… cutting in steel, the 3D finite element model for aluminum groove machining developed previously has been enhanced to include an thermo-elastic-plastic model of steel workpiece using Lagrangian formulation material and its related mechanical and thermal properties, and suitable remeshing …
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Mechanics and multi-physics deformation behavior of polymer electrolyte membranes
… primary focus areas: (1) characterization and modeling of Nafion, the benchmark PEM, in order to understand hygro-thermal loading in the existing technology and (2) mechanical characterization and modeling toward the development of an alternative polymer electrolyte membrane. These two areas …