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The Influence of Non-Dissipative Quantities in Kinematic Hardening Plasticity

Wallin, Mathias LU ; Ristinmaa, Matti LU and Ottosen, Niels Saabye LU (2002) In Key Engineering Materials 233-236(ii). p.773-778
Abstract
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... (More)
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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Kinematic hardening, Large strains, Multiplicative split
in
Key Engineering Materials
volume
233-236
issue
ii
pages
773 - 778
publisher
Trans Tech Publications Ltd
external identifiers
  • Scopus:0036955079
ISSN
1013-9826
DOI
10.4028/www.scientific.net/KEM.233-236.773
language
English
LU publication?
yes
id
c099aefe-46e9-4e1d-a0f2-e625ce887685 (old id 2223717)
date added to LUP
2011-12-06 13:41:41
date last changed
2017-01-01 07:47:54
@article{c099aefe-46e9-4e1d-a0f2-e625ce887685,
  abstract     = {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.},
  author       = {Wallin, Mathias and Ristinmaa, Matti and Ottosen, Niels Saabye},
  issn         = {1013-9826},
  keyword      = {Kinematic hardening,Large strains,Multiplicative split},
  language     = {eng},
  number       = {ii},
  pages        = {773--778},
  publisher    = {Trans Tech Publications Ltd},
  series       = {Key Engineering Materials},
  title        = {The Influence of Non-Dissipative Quantities in Kinematic Hardening Plasticity},
  url          = {http://dx.doi.org/10.4028/www.scientific.net/KEM.233-236.773},
  volume       = {233-236},
  year         = {2002},
}