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Article Dans Une Revue Mechanics & Industry Année : 2019

A micromechanical inspired model for the coupled to damage elasto-plastic behavior of geomaterials under compression

Résumé

We propose an elasto-plastic model coupled with damage for the behavior of geomaterials in compression. The model is based on the properties, shown in [S. Andrieux, et al., Un modèle de matériau microfissuré pour les bétons et les roches, J. Mécanique Théorique Appliquée 5 (1986) 471?513], of microcracked materials when the microcracks are closed with a friction between their lips. That leads to a macroscopic model coupling damage and plasticity where the plasticity yield criterion is of the Drucker–Prager type with kinematical hardening. Adopting an associative flow rule for the plasticity and a standard energetic criterion for damage, the properties of such a model are illustrated in a triaxial test with a fixed confining pressure.
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Dates et versions

hal-02924623 , version 1 (28-08-2020)

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Jean-Jacques Marigo, Kyrylo Kazymyrenko. A micromechanical inspired model for the coupled to damage elasto-plastic behavior of geomaterials under compression. Mechanics & Industry, 2019, 20 (1), pp.105. ⟨10.1051/meca/2018043⟩. ⟨hal-02924623⟩
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