Abstract
Recently, a development of the fatigue life prediction technology of the weld by CAE is demanded. In our previous researches, the nominal structural stress (NSS) calculation method was applied to the arc-weld structure, it has been shown that there is a possibility of predicting the fatigue life of an arc welding. In this study, the NSS calculation method of arc weld structure was applied to the laser weld structure, the accuracy of stress values which was obtained from the NSS calculation method was researched. As a result, the nominal structural stress of the laser weld structure was accurately obtained by the NSS calculation method.
