A micromechanical inspired model for the coupled to damage elasto-plastic behavior of geomaterials under compression
Keyword(s):
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.
2014 ◽
Vol 919-921
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pp. 627-631
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1997 ◽
Vol 12
(1)
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pp. 21-27
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2017 ◽
Vol 2017
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pp. 1-6
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2005 ◽
Vol 56
(2)
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pp. 357-366
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