Published Paper

Inserted: 15 oct 2019
Last Updated: 13 feb 2025

Journal: SIAM J. Math. Anal.
Volume: 53
Number: 3
Year: 2021
Doi: https://doi.org/10.1137/19M1303563

Abstract:

A rate-independent model coupling small strain associative elasto-plasticity and damage is studied via a 'vanishing-viscosity' analysis with respect to all the variables describing the system. This extends the analysis performed for the same system in Crismale-Lazzaroni 2016, where a vanishing-viscosity regularization involving only the damage variable was set forth. In the present work, an additional approximation featuring vanishing plastic hardening is introduced in order to deal with the vanishing viscosity in the plastic variable. Different regimes are considered, leading to different notions of Balanced Viscosity solutions for the perfectly plastic damage system, and for its version with hardening.

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