TY - GEN
T1 - The influence of non-dissipative quantities in kinematic hardening plasticity
AU - Wallin, Mathias
AU - Ristinmaa, Matti
AU - Ottosen, Niels Saabye
PY - 2003
Y1 - 2003
N2 - A kinematic hardening plasticity model valid for finite strains is presented. The model is based on the well-known multiplicative split of the deformation gradient into an elastic and a plastic part. The basic ingredient in the formulation is the introduction of locally defined configurations center configurations- which are associated with deformation gradients that are used to characterize the kinematic hardening behavior. One of the aspects of the model investigated here is found when the plastic and kinematic hardening evolution laws are split into two parts: a dissipative part, which is restricted by the dissipation inequality, and a non-dissipative part, which can be chosen without any thermodynamical considerations. To investigate the predictive capabilities of the proposed formulation, the simple shear problem and torsion of a thin-walled cylinder are considered. In the numerical examples it turns out that the non-dissipative quantities affect the response to a large extent and are consequently valuable ingredients in the formulation when representing real material behavior
AB - A kinematic hardening plasticity model valid for finite strains is presented. The model is based on the well-known multiplicative split of the deformation gradient into an elastic and a plastic part. The basic ingredient in the formulation is the introduction of locally defined configurations center configurations- which are associated with deformation gradients that are used to characterize the kinematic hardening behavior. One of the aspects of the model investigated here is found when the plastic and kinematic hardening evolution laws are split into two parts: a dissipative part, which is restricted by the dissipation inequality, and a non-dissipative part, which can be chosen without any thermodynamical considerations. To investigate the predictive capabilities of the proposed formulation, the simple shear problem and torsion of a thin-walled cylinder are considered. In the numerical examples it turns out that the non-dissipative quantities affect the response to a large extent and are consequently valuable ingredients in the formulation when representing real material behavior
KW - dissipation inequality
KW - dissipative part
KW - kinematic hardening evolution laws
KW - plastic evolution laws
KW - kinematic hardening behavior
KW - center configurations
KW - locally defined configurations
KW - plastic part
KW - elastic part
KW - deformation gradient
KW - kinematic hardening plasticity model
KW - finite strains
KW - thermodynamical considerations
KW - nondissipative part
KW - simple shear problem
KW - torsion
KW - thin-walled cylinder
KW - real material behavior
M3 - Paper in conference proceeding
VL - 233-236
SP - 773
EP - 778
BT - Key Engineering Materials
PB - Trans Tech Publications
T2 - 6th Asia-Pacific Symposium on Engineering Plasticity and its Applications (AEPA 2002)
Y2 - 2 December 2002 through 6 December 2002
ER -