Fatigue analysis of spot-welded joints under variable amplitude load history
1996; Elsevier BV; Volume: 55; Issue: 3 Linguagem: Inglês
10.1016/0013-7944(95)00235-9
ISSN1873-7315
AutoresMohamed E. M. El-Sayed, Ted Stawiarski, R. Frutiger,
Tópico(s)Mechanical Behavior of Composites
ResumoThis paper discusses an approach for the fatigue analysis of spot-welded joints under variable amplitude loading. Two simplified relations, relating the nugget maximum load and metal thickness to the fatigue life of an entire durability schedule, are developed. A computer program is also developed, to predict the fatigue life in blocks of a variable amplitude load history. The program uses the spot-weld nugget rotation from finite element analysis to calculate the fatigue life. The developed computer program is tested using some coupon samples from published experimental results.
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