Calculus of Variations and Geometric Measure Theory
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D. Melching - R. Scala - J. Zeman

Damage model for plastic materials at finite strains

created by scala on 01 Feb 2018

[BibTeX]

Preprint

Inserted: 1 feb 2018
Last Updated: 1 feb 2018

Year: 2018

Abstract:

We consider a model for nonlinear elastoplasticity coupled with incomplete damage. The internal energy of the deformed elastoplastic body depends on the deformation $y$, on the plastic strain $P$, and on an internal variable $z$ describing the damage level of the medium. We consider a dissipation distance $D$ between internal states accounting for coupled plastic deformation and damage. Moving from time-discretization we prove the existence of a rate-independent quasistatic evolution of the system.


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