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Erschienen in:
2017 | OriginalPaper | Buchkapitel
Multiscale Investigation of Microcrack-Induced Instability in Rocks
verfasst von : Mahdad Eghbalian, Richard Wan
Erschienen in: Bifurcation and Degradation of Geomaterials with Engineering Applications
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Abstract
The paper deals with a mathematical description of instability and localization in rocks through a multi-scale modeling strategy with coupled multiphysics. We adopt a homogenization approach to work out an effective description of microscopic phenomena at the continuum through defining a Representative Volume Element (RVE). The role of hydro-mechanical coupling in the transition from an otherwise initial diffuse state to a localized state can be investigated through the gradual degradation of the kinematics due to micro-fracture formation.