Globally stable quasistatic evolution in plasticity with softening
Analysis of PDEs
2007-05-23 v1 Functional Analysis
Abstract
We study a relaxed formulation of the quasistatic evolution problem in the context of small strain associative elastoplasticity with softening. The relaxation takes place in spaces of generalized Young measures. The notion of solution is characterized by the following properties: global stability at each time and energy balance on each time interval. An example developed in detail compares the solutions obtained by this method with the ones provided by a vanishing viscosity approximation, and shows that only the latter capture a decreasing branch in the stress-strain response.
Keywords
Cite
@article{arxiv.0704.2984,
title = {Globally stable quasistatic evolution in plasticity with softening},
author = {Gianni Dal Maso and Antonio DeSimone and Maria Giovanna Mora and Massimiliano Morini},
journal= {arXiv preprint arXiv:0704.2984},
year = {2007}
}