A thermodynamically consistent framework for saturated viscoplastic rock-materials subject to damage

Files
2012_Dufour_Wong_Arson_Deleruyelle_Pereira_MRC.pdf (1.74 MB)
Author(s)
Dufour, N.
Wong, H.
Deleruyelle, F.
Pereira, Jean-Michel
Advisor(s)
Editor(s)
Associated Organization(s)
Organizational Unit
Organizational Unit
Series
Collections
Research Publications
Supplementary to:
Permanent Link
http://hdl.handle.net/1853/51999
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.
Sponsor
Date
2012-07
Extent
Resource Type
Text
Resource Subtype
Post-print
Rights Statement
Rights URI