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A thermodynamically consistent framework for saturated viscoplastic rock-materials subject to damage
Abstract : The aim of this study is to build a thermodynamically consistent theoretical framework to model viscoplasticity and damage in saturated geomaterials. The induced anisotropic damage is represented by a second-order tensor. The key point of the model formulation is the definition of a "double effective stress", stemming from the concept of "damaged effective stress" (used in Continuum Damage Mechanics to couple damage and viscoplasticity in solids), and from the concept of "hydro-mechanical effective stress" (used in poromechanics to account for solid-fluid interactions). The dissipation potential is expressed as a function of the "double effective stress", which makes it possible to couple creep, fluid flow and damage in a consistent framework. © 2012 Elsevier Ltd. All rights reserved.
https://hal-enpc.archives-ouvertes.fr/hal-01157369
Contributeur : Frédérique Bordignon <>
Soumis le : mercredi 27 mai 2015 - 22:49:48
Dernière modification le : mardi 8 décembre 2020 - 10:20:37
Contributeur : Frédérique Bordignon <>
Soumis le : mercredi 27 mai 2015 - 22:49:48
Dernière modification le : mardi 8 décembre 2020 - 10:20:37