An integrated approach for numerically predicting the failure of resistance spot welds

In this study, a numerical approach was proposed to predict the failure of resistance spot welds, into which theoretical and empirical models as well finite element (FE) model are integrated. approach, hardness welds first evaluated estimated then used determine local mechanical properties. The weld geometry boundary conditions were faithfully followed when generating FE model. A Gurson-type damage cohesive zone simultaneously considered for two main modes, i.e. pull-out interface failure. predictions validated by experimental observations. successful estimation critical nugget size, an exemplary application, demonstrated utility reliability approach.