Stress state dependent damage modeling of self-pierce riveting process simulation using GISSMO damage model

In this study, the damage model GISSMO (Generalized Incremental Stress State dependent damage MOdel) is used to describe the evolution of ductile damage and predict the onset of fracture during the self-pierce riveting of thin aluminum (EN AW-5182) sheets. By accurate prediction of the pre-damage and material separation in the simulation of joining process, the accuracy of crashworthiness simulations can be improved. Besides, over dimensioning...