![]() ![]() The crystal plasticity material model offers extensive features. Interfaces for Abaqus style UMAT and UEXTERNALDB routines support ready inclusion of user-defined capabilities. Some features in the code are oriented toward the investigation of fracture in metals include a robust finite strain formulation, a general J-integral computation facility (with inertia, thermal, face loading, residual stresses, initial plastic strains), interaction integrals for computation of linear-elastic fracture parameters (stress intensity factors and T-stress), very general element extinction and node release facilities to model crack growth, nonlinear material models including viscoplastic and cyclic, cohesive elements and cohesive constitutive models, hydrogen effects on plasticity, Norton creep, and the Gurson-Tvergaard dilatant plasticity model for void growth. ![]()
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