Constitutive modeling of cyclic plasticity and creep, using an internal time concept
type: Item
instance of: scholarly article
title: Constitutive modeling of cyclic plasticity and creep, using an internal time concept
zbMATH Open document ID: 0618.73039
DOI: 10.1016/0749-6419(86)90008-2
author: Osamu Watanabe
author: Satya N. Atluri
published in: International Journal of Plasticity
publication date: 1986-01-01T00:00:00Z
review text: (From author's summary.) Authors use the concept of an internal time as related to plastic strains, and rederive the differential stress-strain relation for elastoplasticity, such that (i) the concept of a yield- surface is retained; (ii) the definitions of elastic and plastic processes are analogous to those in classical plasticity theory; and (iii) its computational implementation, via a ''tangent-stiffness'' finite element method and a ''generalized-midpoint-radial-return'' stress- integration algorithm, is simple and efficient. Also, using the concept of an internal time, as related to both the elastic strains as well as the Newtonian time, a constitutive model for creep-plasticity interaction, is discussed. The problem of modeling experimental data for plasticity and creep, by the present analytical relations, as accurately as desired, is discussed. Numerical examples which illustrate the validity of the present relations are presented for the cases of cyclic plasticity and creep.
Mathematics Subject Classification ID: 74C99
Mathematics Subject Classification ID: 74S30
zbMATH DE Number: 4003624
zbMATH Keywords: internal time
zbMATH Keywords: plastic strains
zbMATH Keywords: differential stress-strain relation for elastoplasticity
zbMATH Keywords: yield-surface
zbMATH Keywords: tangent-stiffness'' finite element method
zbMATH Keywords: ''generalized-midpoint-radial-return'' stress-integration algorithm
zbMATH Keywords: elastic strains
zbMATH Keywords: Newtonian time
zbMATH Keywords: constitutive model for creep- plasticity interaction
zbMATH Keywords: cyclic plasticity
reviewed by: F. P. J. Rimrott
MaRDI profile type: Publication
full work available at URL: 0749-6419(86)90008-2
OpenAlex ID: W2024402557
description: scientific article; zbMATH DE number 4003624