蔡正阳  (副研究员)

出生日期:1988-02-27

电子邮箱:

所在单位:信息管理系

学历:研究生(博士)毕业

办公地点:管理楼1401

性别:男

学位:博士学位

在职信息:在职

毕业院校:北京航空航天大学

   
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Evolving hardening behaviors of high strength steel sheets under altered loading paths

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DOI码:10.1016/j.proeng.2017.10.750

发表刊物:Procedia engineering

关键字:High strength steel; Evolving hardening behavior; Pre-strained biaxial tensile test; FEM; Springback prediction.

摘要:In this work, the subsequent yield loci of the given DP steel sheets were experimentally determined by conducting biaxial tensile tests with pre-strained cruciform specimens. The results revealed that distortional hardening behavior, which has been previously discovered and calibrated under proportional loading conditions only, still exist in the complex loading conditions. Moreover, the expanding and translating of the yield loci was non-neglectable, which means the isotropic and kinematic hardening should be considered. Therefore, the combined isotropic-kinematic-distortional hardening model was proposed to calibrate the evolving hardening behaviors of the given sheet metals. Afterwards, the proposed model, together with other hardening models, were programmed as user subroutines UMAT and VUMAT in ABAQUS respectively. The V-bending tests and FE simulations were then conducted to evaluate the springback predicting precision with proposed model.

合写作者:Min Wan,Zhigang Liu,Bolin Ma,Rui Zhao

第一作者:Zhengyang Cai

论文类型:期刊论文

通讯作者:Xiangdong Wu

学科门类:工学

文献类型:C

卷号:207

页面范围:131-136

ISSN号:1877-7058

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发表时间:2017-11-15

收录刊物:EI

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