Quasiconvex envelope for a model of finite elastoplasticity with one active slip system and linear hardening

Conti, Sergio and Dolzmann, Georg (2020) Quasiconvex envelope for a model of finite elastoplasticity with one active slip system and linear hardening. CONTINUUM MECHANICS AND THERMODYNAMICS, 32 (4). pp. 1187-1196. ISSN 0935-1175, 1432-0959

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Abstract

An explicit characterization of the quasiconvex envelope of the condensed energy in a model for finite elastoplasticity is presented, both in two and in three spatial dimensions. A variational formulation of plasticity, which is appropriate for the first time step in a time discrete formulation of the evolution problem, is used, and it is assumed that only one slip system is active. The model includes a nonlinear elastic energy, which is invariant under SO(n), and an effective plastic contribution which is quadratic in the slip parameter. The quasiconvex envelope arises via the formation of first-order laminates.

Item Type: Article
Uncontrolled Keywords: CRYSTAL PLASTICITY; ENERGY MINIMIZATION; RELAXATION; MICROSTRUCTURES; DEFORMATION; SIMULATION; Quasiconvexity; Relaxation; Elastoplasticity
Subjects: 500 Science > 510 Mathematics
Divisions: Mathematics > Prof. Dr. Georg Dolzmann
Depositing User: Dr. Gernot Deinzer
Date Deposited: 19 Mar 2021 12:37
Last Modified: 19 Mar 2021 12:37
URI: https://pred.uni-regensburg.de/id/eprint/44322

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