Title: Measurement and analysis of yield locus and work hardening characteristics of steel sheets wtih different r-values
Authors: Kuwabara, T ×
Van Bael, Albert
Iizuka, E #
Issue Date: Aug-2002
Publisher: Pergamon-elsevier science ltd
Series Title: Acta Materialia vol:50 issue:14 pages:3717-3729
Abstract: Biaxial tensile experiments of six kinds of steel sheet with different r-values are carried out using a servo-controlled biaxial tensile testing machine. Successive contours of plastic work in the biaxial stress space and the plastic strain rate vectors are precisely measured for linear loading paths. The measured data are compared with the theoretical predictions based on the Taylor-Bishop-Hill model with the full constraints and relaxed constraints assumptions using the experimentally determined crystallographic textures. Comparisons with the Hill quadratic and Hosford yield criteria are also made. It is found that (1) the TBH model with the full constraints assumption is superior to that with the relaxed constraints assumption in predicting the plastic deformation characteristics of steel sheets; (2) The Hosford yield criterion is an effective phenomenological model for predicting the plastic deformation characteristics of steel sheets. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
ISSN: 1359-6454
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Department of Materials Engineering - miscellaneous
Technologiecluster Materialentechnologie
Materials Technology TC, Technology Campus Diepenbeek
× corresponding author
# (joint) last author

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