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A model for elastic-viscoplastic deformations of crystalline solids based on material symmetry: Theory and plane-strain simulations

Abstract : A model for the elastic-viscoplastic response of metallic single crystals is developed on the basis of the modern finite-deformation theory of plasticity combined with considerations of material symmetry. This is proposed as an alternative to conventional crystal plasticity theory, based on a decomposition of the plastic deformation rate into a superposition of slips on active slip systems. A simple special case of the general theory, modeling evolving geometrically necessary dislocations and their effect on hardening, is developed and used as the basis of numerical experiments.
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https://hal.archives-ouvertes.fr/hal-00782116
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Submitted on : Tuesday, January 29, 2013 - 10:42:17 AM
Last modification on : Wednesday, August 7, 2019 - 12:19:22 PM
Long-term archiving on: : Saturday, April 1, 2017 - 12:06:22 PM

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  • HAL Id : hal-00782116, version 1
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John Edmiston, David Steigmann, G. Johnson, N. Barton. A model for elastic-viscoplastic deformations of crystalline solids based on material symmetry: Theory and plane-strain simulations. International Journal of Engineering Science, Elsevier, 2013, 63, pp.10-22. ⟨hal-00782116⟩

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