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[in Journal: International Journal of Computational Methods] AND [Keyword: Geomater... (1)	27 Mar 2025	Run
Keyword: Multi-disk (1)	27 Mar 2025	Run
[in Journal: International Journal of Algebra and Computation] AND [Keyword: Locali... (2)	27 Mar 2025	Run
[in Journal: Selected Topics in Electronics and Systems] AND [Keyword: Iii-nitrides] (2)	27 Mar 2025	Run
[Keyword: Mastectomy] AND [All Categories: General Medicine] (2)	27 Mar 2025	Run

articleNo Access
ANISOTROPIC DAMAGE MODELS FOR GEOMATERIALS: THEORETICAL AND NUMERICAL CHALLENGES
- HAO XU and
- CHLOÉ ARSON
International Journal of Computational Methods01 Mar 2014
Preview Abstract
A new anisotropic damage model for rock is formulated and discussed. Flow rules are derived with the energy release rate conjugate to damage, which is thermodynamically consistent. Drucker–Prager yield function is adapted to make the damage threshold depend on damage energy release rate and to distinguish between tension and compression strength. Positivity of dissipation is ensured by using a nonassociate flow rule for damage, while nonelastic deformation due to damage is computed by an associate flow rule. Simulations show that the model meets thermodynamic requirements, follows a rigorous formulation, and predicts expected trends for damage, deformation and stiffness.

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