Implicit Integration of Non-Standard Plasticity Models
The observation that cyclic behaviour of granular materials cannot be described appropriately with standard plasticity models has led to the introduction of numerous non-standard plasticity models. Currently, most of these models are still integrated using an explicit formulation, thus potentially leading to inaccuracy and unstable behaviour. In this paper we give a general method for the fully implicit integration of the rate equations resulting from non-standard plasticity theories. The method is illustrated showing the implicit integration of two of such models.
KeywordsYield Surface Deviatoric Stress Plasticity Model Kinematic Hardening Deviatoric Strain
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