Failure modes of dual phase steels under different loading paths

被引：0
|
作者：
Xu, Nanqiao [1 ]
Li, Mei [1 ]
Zhao, Yixi [1 ]
Hu, Xing [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Shanghai Key Lab Digital Autobody Engn, Sch Mech Engn, Shanghai 200240, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING APPLICATIONS, PTS 1-3 | 2011年 / 160-162卷
关键词：
Dual Phase; Shear Fracture; Localized Necking; Stretch Flanging;
D O I：
10.4028/www.scientific.net/AMR.160-162.1674
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, experimental and numerical analysis is used to investigate the failure modes of dual phase steels under different loading paths. Numerical models are established for uniaxial tensile tests and stretch flanging tests. Special attention has been paid to the behavior of DP780 in stretch flanging tests with small die radius. The occurrence of shear fracture is identified by comparing numerical simulation results with test data. The study suggests that traditional theory of localized necking is feasible for DP780 under uniaxial tensile condition but invalid when it is undergoing stretch flanging tests with small radius.
引用
收藏
页码：1674 / 1679
页数：6
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