A dissipation model for cyclic non-associative thermoplasticity at finite strains

The paper presents a model of thermoplasticity suitable for finite strains. The model is based on the hyperelastic formulation involving multiplicative decomposition of the deformation gradient into three parts. The emphasis is given to the modeling of dissipation in the context of nonlinear kinemat...

Full description

Saved in:
Bibliographic Details
Published in:Mechanics research communications 2010-09, Vol.37 (6), p.510-514
Main Authors: Čanađija, M., Brnić, J.
Format: Article
Language:English
Subjects:
Cyclic plasticity
Dissipation
Non-associated thermoplasticity
Non-linear kinematic hardening
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The paper presents a model of thermoplasticity suitable for finite strains. The model is based on the hyperelastic formulation involving multiplicative decomposition of the deformation gradient into three parts. The emphasis is given to the modeling of dissipation in the context of nonlinear kinematic hardening in the non-associative plasticity. Kinematic hardening is described through introduction of an additional configuration, the so-called center configuration. Thermodynamic framework is carefully presented, with all particulars about kinematics, balance equations and constitutive equations. Shortcomings of a widely used dissipation model are analyzed and alternative form is proposed. The presented model is verified on one example. At the end, some conclusions are given.
ISSN:0093-6413
1873-3972
DOI:10.1016/j.mechrescom.2010.07.010