Failure of spot welds under in-plane static loading

被引：42
|
作者：
Wung, P
Walsh, T
Ourchane, A
Stewart, W
Jie, M
机构：
[1] Ford Motor Co, Dearborn, MI 48121 USA
[2] Univ Michigan, Dearborn, MI 48128 USA
来源：
EXPERIMENTAL MECHANICS | 2001年 / 41卷 / 01期
关键词：
spot weld; force-based failure criterion; multi-spot weld test verification; spot weld crack; spot weld failure;
D O I：
10.1007/BF02323111
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Under in-plane loading conditions, two independent modes contribute to the failure of a spot weld: the in-plane shear mode and the in-plane rotational mode. In this work, the failures of both modes under large static load are examined individually To study the combined failure of these two modes, two special test coupons are designed. The first coupon contains one spot weld. The second coupon contains five spat welds. Tests conducted in this work show that avery simple force-based failure criterion can be used to predict the failure of a spot weld under large in-plane combined static loads. Current multiaxial failure theory cannot explain this combined failure. This force-based spot weld failure criterion fits current automotive industry needs for body shell finite element application very well.
引用
收藏
页码：100 / 106
页数：7
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