A non-linear hardening model based on two coupled internal hardening variables: formulation and implementation

Details A non-linear hardening model based on two coupled internal hardening variables: formulation and implementation A non-linear hardening model based on two coupled internal hardening variables: formulation and implementation

2009-01-11

arxiv.org/abs/0901.1449v1

Mechanical Modelling and Computational Issues in Civil Engineering, M. Fr\'emond, F. Maceri (Ed.) (2005) 201-209

Physics

Classical Physics

Scientific paper

An elasto-plasticity model with coupled hardening variables of strain type is presented. In the theoretical framework of generalized associativity, the formulation of this model is based on the introduction of two hardening variables with a coupled evolution. Even if the corresponding hardening rules are linear, the stress-strain hardening evolution is non-linear. The numerical implementation by a standard return mapping algorithm is discussed and some numerical simulations of cyclic behaviour in the univariate case are presented.

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