Calculus of Variations and Geometric Measure Theory

V. Crismale

Energetic solutions for the coupling of associative plasticity with damage in geomaterials

created by crismale on 17 Sep 2021
modified on 11 Oct 2022


Published Paper

Inserted: 17 sep 2021
Last Updated: 11 oct 2022

Journal: Nonlinear Analysis
Volume: 222
Number: 112957
Year: 2022


We prove existence of globally stable quasistatic evolutions, referred to as energetic solutions, for a model proposed by Marigo and Kazymyrenko in 2019. The behaviour of geomaterials under compression is studied through the coupling of Drucker-Prager plasticity model with a damage term tuning kinematical hardening. This provides a new approach to the modelling of geomaterials, for which non associative plasticity is usually employed. The kinematical hardening is null where the damage is complete, so there the behaviour is perfectly plastic. We analyse the model combining tools from the theory of capacity and from the treatment of linearly elastic materials with cracks.