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 5 of 5 for “"Elastic-plastic transition"”.
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Avalanches, percolation, and stochastic damage evolution in disordered media
… microstructure. The classical picture of elastic-plastic transition as a smooth process is challenged by the compression experiments on micro/nano pillars where plastic strain was observed to accumulate intermittently. Using a discrete spring lattice modeling approach, the intermittent …
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Homogenization and elastic-plastic transitions in random and FGM microstructures
… and static boundary condition) setup on the SVE. Elastic responses of 2d microstructures such as two-phase random checkerboard are considered, and RVE of the same is also identified. This technique is consistent with the Hill-Mandel macrohomogenity condition. We propose to homogenize the elastic …
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Nanoindentation of Gold Single Crystals
… the depth of penetration was independent of this elastic–plastic transition. The onset of plastic deformation in these tests is observed at stress levels on the order of the theoretical yield strength. There are a limited number of defects in a single crystal specimen of gold, especially on the …
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Fractals in elastic-plastic transitions of random heterogeneous materials
… propose a fractal analysis methodology to study elastic-plastic transitions in random heterogeneous materials. While it is well known that many materials display fractal characteristics, very little work was done on fractals in elasto-plasticity, and so this study is one of the first attempts in …
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Fractals in mechanics of materials
… of this dissertation studies fractal patterns of plastic regions observed in elastoplastic deformations. As a paradigm, we focus on a random material model with microscale randomness in material properties. When it is subjected to increasing macroscopically uniform loadings, plasticized grains …