508L4.7.2.07 - Mechanics of Earthquakes and Faulting 7 Feb....

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Mechanics of Earthquakes and Faulting Mechanics of Earthquakes and Faulting Shear Fracture Energy Slip Weakening Law, Cohesive Zone Model Fluids: Mechanical, Chemical Effective Stress Dilatancy Dilatancy Hardening and Stability Mead, 1925 (Mead, W. J., The geologic role of dilatancy. Jour. Geol. 33, 685-698, 1925.) Volumetric work and stability. Frank, 1965 (Frank, F. C., On dilatancy in relation to seismic sources. Rev. Geophys. 3, 485-503, 1965) 7 Feb. 2007
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Standard Solids There are many types of rheologies and failure laws based on idealized stress-strain-failure relations. In general they are simple, however, one has to keep in mind what is meant by failure, since different definitions are used for different rheologies. Ideal plastic (also called perfectly plastic or rigid plastic) has no deformation (zero strain) until a threshold stress and then infinite strain at that yield stress. Elasto-plastic is elastic (strain) up to a threshold stress and then infinite strain at that yield stress. Strain hardening refers to a variety of cases in which the yield strength (stress required to cause further deformation) increases with strain. Strain softening
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508L4.7.2.07 - Mechanics of Earthquakes and Faulting 7 Feb....

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