Abstract
We model large scale Mohr-Coulomb yielding that accompany fractures in weak rocks, by means of dislocations. The basic equations are derived from a simple model of the crack tip plasticity which represents the plasticity by superdislocations placed at the effective centres of the crack tip process zone.
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Papanastasiou, P., Atkinson, C. Representation of Crack-Tip Plasticity in Pressure Sensitive Geomaterials: Large Scale Yielding. Int J Fract 139, 137–144 (2006). https://doi.org/10.1007/s10704-006-8371-8
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DOI: https://doi.org/10.1007/s10704-006-8371-8