Evaluation of hardening laws coupled with shear modified Lemaitre damage model for fracture prediction in incremental sheet forming

Abstract Incremental sheet forming (ISF) is an emerging technology for manufacturing metal components with fewer tools and equipment compared to conventional forming. In this process, generally performed without dies punches a simple hemispherical shaped tool can be used shaping the final component. Forming limit in incremental defined by maximum formable wall angle. Finite element analysis fracture prediction using damage model. Also, define material flow behaviour hardening law should incorporated into finite study four different laws were shear modified Lemaitre model during ISF of AA1050 alloy. The effectiveness Hollomon, Johnson-Cook, Ludwigson Swift prediction. Further, predicted angles experimental observations. results analysed terms strain evolution based on models.