Review of different material separation criteria in numerical modeling of the self-piercing riveting process – SPR

Numerical modeling of the SPR process can be very efficient way for optimization of the strength of a joint obtained by this method. During numerical simulation one of the important problems is to define precisely the moment of upper layer separation leading to rivet penetration of lower layer(s). In the paper, a review of selected material separation criteria available in commercial MSC software applied for the SPR process simulation is presented.