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Inserted: 29 nov 2023
Last Updated: 9 nov 2026

Journal: ESAIM Control Optim. Calc. Var.
Volume: 31
Pages: Article 14 (49 pp.)
Year: 2025
Doi: 10.1051/cocv/2025004

Abstract:

We study a strain gradient-enhanced version of a model for geomaterials under compression by Marigo and Kazymyrenko (2019) coupling damage and small-strain associative plasticity. We prove that the jumps in time of the plastic variable may happen only along jumps of the damage variable. Moreover, we perform a vanishing-viscosity analysis showing existence of Balanced Viscosity quasistatic solutions à la Mielke-Rossi-Savaré.

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