Finite element modeling of weld solidification cracking in 6061-T6 aluminum - applicability of strain-based failure criteria

摘要

Finite element simulations using an internal state variable constitutive model are used to study weld solidification cracking of 6061-T6 aluminum. Stress and strain histories at the weld centerline for two types of specimen are studied with regards to application of strain-based failure criteria for predicting weld solidification cracking. 11 refs., 7 figs., 2 tabs.