文章基本信息

标题：Experimental And Numerical Analysis Of Low Cycle Fatigue Of Spot-Welded Joints Under Peel-Tension Loading.
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作者：Alireza Gowhari-Anaraki ; Mohammad K. Pipelzadeh ; Stephen J. Hardy 等
期刊名称：Mecánica Computacional
印刷版ISSN：2591-3522
出版年度：2007
期号：1
页码：786-804
语种：English
出版社：CIMEC-INTEC-CONICET-UNL
摘要：This paper investigates three different finite element models describing a single spot-welded joint of thin plates under peel-tension loading. Experimental tests have been conducted to enable comparison of the peak elastic strain measurements in the spot-weld with those predicted by the finite elements models. It was found that the solid model gives the best correlation to the strain predictions. The elastic-plastic finite element behaviour of the spot-welded joint under monotonic and cyclic loading is considered for two geometries. The effects of variations in post-yielding material properties on the stress and strain are considered. These results are compared with the notch-stress-strain conversion rule estimates associated with low cycle fatigue. It was found that the Neuber rule provides conservative estimates.
其他摘要：This paper investigates three different finite element models describing a single spot-welded joint of thin plates under peel-tension loading. Experimental tests have been conducted to enable comparison of the peak elastic strain measurements in the spot-weld with those predicted by the finite elements models. It was found that the solid model gives the best correlation to the strain predictions. The elastic-plastic finite element behaviour of the spot-welded joint under monotonic and cyclic loading is considered for two geometries. The effects of variations in post-yielding material properties on the stress and strain are considered. These results are compared with the notch-stress-strain conversion rule estimates associated with low cycle fatigue. It was found that the Neuber rule provides conservative estimates.