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Lavinia Borges and
Fernando P. Duda
Limit states in advanced materials and its relation to micromechanics The proposal of the lecture is to present a summary of the research carried out by the Solid Mechanics and Materials group of the Mechanical Engineering Program at COPPE/UFRJ, on the subject of computational modeling of nonlinear material behavior. Applications on limit states and shock on FGM will be shown with emphasis on the links between limit analysis and micromechanics. In particular, we model an equal channel angular extrusion process by means of a plastic flow representation. Nowadays, this is one process mostly used in order to obtain nanostructured materials. Another application is concerned with the interaction limits of an FGM layer under variable thermo-mechanical loadings.
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