Transactions of Materials and Heat Treatment

Title：Parameter inversion on Yoshida-Uemori material model of high strength steel based on simulated annealing algorithm

Authors： Xu Jie Wang Tian Zhang Rong

Unit： Chongqing Technology and Business Institute Chongqing University

KeyWords： high strength steel Yoshida-Uemori model parameter inversion simulated annealing algorithm

ClassificationCode：TG386

year,vol(issue):pagenumber：2016,41(6):133-137

Abstract：

For the difficulty of obtaining Yoshida-Uemori material model parameters, an approach combining graphic method with finite element simulation inversion was proposed for high strength steel DP600. The difference of the finite element calculation values with physical test values was obtained by simulated annealing algorithm and engineering optimization mathematical method considering the result precision and solving efficiency. Through the inversion analysis on different initial values, it is found that this solving method is of good adaptability, and error-tolerance of the inversion result can be improved greatly. Therefore, it is fit for further actual application. The Yoshida-Uemori material model parameters measured by the inversion method and verified by V-shaped bending test can be directly used in finite element to predict springback.

Funds：

基金项目:重庆市前沿与应用基础研究项目（cstc2015jcyjA1034）

作者简介：徐杰（1981-），男，硕士，讲师 E-mail：85709201@qq.com

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