A constitutive equation for description of large-strain cyclic plasticity

Fusahito Yoshida; Takeshi Uemori

doi:10.1299/kikaia.68.415

A constitutive equation for description of large-strain cyclic plasticity

Research output: Contribution to journal › Article

Abstract

This paper presents a constitutive model of plasticity that describes the cyclic stress-strain responses at large strain. A new equation of backstress evolution is proposed for an accurate simulation of the transient Bauschinger effect. An original idea of a non-isotropic-hardening surface defined in the stress space is presented for the description of the workhardening stagnation appearing under reverse deformation, as well as the strain-range and mean-strain dependencies of cyclic hardening characteristics. The validity of this model is confirmed by comparing the cyclic stress-strain responses calculated by the model with the experimental observations on two types of steel sheets (an aluminum-killed steel and a dual-phase high strength steel of 590 MPa tensile strength).

Original language	English
Pages (from-to)	415-421
Number of pages	7
Journal	Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume	68
Issue number	3
DOIs	https://doi.org/10.1299/kikaia.68.415
Publication status	Published - Mar 2002

Keywords

Bauschinger effect
Computational mechanics
Constitutive equation
Large strain
Plasticity
Workhardening stagnation

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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Yoshida, F., & Uemori, T. (2002). A constitutive equation for description of large-strain cyclic plasticity. Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, 68(3), 415-421. https://doi.org/10.1299/kikaia.68.415

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