In this study, we present the limit loads of 3 representative types of single spot-welded specimens in terms of the base metal yield strength and specimen geometries, thereby providing a generalized overload failure curve. Recasting the load vs. fatigue life relationships experimentally obtained here, we also predict the fatigue life of spot-weld specimens with a single parameter denoted the equivalent stress intensity factor. This crack driving parameter is demonstrated to describe the effects of specimen geometry and loading type in a comprehensive manner.
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