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Cited 170 time in webofscience Cited 199 time in scopus
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An alternative to kinematic hardening in classical plasticity

Title
An alternative to kinematic hardening in classical plasticity
Authors
Barlat, FGracio, JJLee, MGRauch, EFVincze, G
POSTECH Authors
Barlat, F
Date Issued
Sep-2011
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Abstract
In this work, an approach is proposed for the description of the plastic behavior of materials subjected to multiple or continuous strain path changes. In particular, although it is not formulated with a kinematic hardening rule, it provides a reasonable description of the Bauschinger effect when loading is reversed. This description of anisotropic hardening is based on homogeneous yield functions/plastic potentials combining a stable, isotropic hardening-type, component and a fluctuating component. The latter captures, in average, the effect of dislocation interactions during strain path changes. For monotonic loading, this approach is identical to isotropic hardening, with an expanding isotropic or anisotropic yield surface around the active stress state. The capability of this constitutive description is illustrated with applications on a number of materials, namely, low carbon, dual phase and ferritic stainless steel samples. (C) 2011 Elsevier Ltd. All rights reserved.
Keywords
Dislocations; Bauschinger effect; Yield condition; Anisotropic material; Constitutive behavior; DUAL-PHASE STEEL; ANISOTROPIC YIELD FUNCTIONS; ALUMINUM-ALLOY SHEETS; STRAIN-PATH CHANGES; LOW-CARBON STEEL; METAL PLASTICITY; CYCLIC PLASTICITY; BEHAVIOR; MODEL; STRESS
URI
http://oasis.postech.ac.kr/handle/2014.oak/17246
DOI
10.1016/J.IJPLAS.2011.03.003
ISSN
0749-6419
Article Type
Article
Citation
INTERNATIONAL JOURNAL OF PLASTICITY, vol. 27, no. 9, page. 1309 - 1327, 2011-09
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 BARLAT, FREDERIC GERARD
Graduate Institute of Ferrous Technology
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