Stress intensity factor solutions for similar and dissimilar spot welds in lap-shear specimens under clamped loading conditions

被引：6
|
作者：
Sung, Shin-Jang [1 ]
Chen, Jifan [1 ]
Pan, Jwo [1 ]
机构：
[1] Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
来源：
ENGINEERING FRACTURE MECHANICS | 2017年 / 179卷
关键词：
Similar spot weld; Dissimilar spot weld; Lap-shear specimen; Stress intensity factor; Clamped loading; CRACKS;
D O I：
10.1016/j.engfracmech.2017.05.016
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this paper, analytical stress intensity factor solutions for similar and dissimilar spot welds in lap-shear specimens under pinned and clamped loading conditions are derived. Closed-form solutions for similar welds in lap-shear specimens of equal thickness under pinned and clamped loading conditions are derived to show explicitly the effects of the clamped edges on the stress intensity factor solutions. Finite element analyses are also employed to obtain the stress intensity factor solutions for similar and dissimilar spot welds in lap-shear specimens under pinned and clamped loading conditions. Both computational and analytical solutions indicate that the clamped loading reduces the stress intensity factor solutions for the given specimen geometries by up to 7% for similar welds and by about 20% for dissimilar magnesium/steel welds. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：328 / 347
页数：20
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