Numerical investigation of laser beam-welded AA2198 joints under different artificial ageing conditions

The present study aims to investigate the effect of weld geometry and geometrical shape imperfections on mechanical behavior welded joints under different post-weld heat treatment conditions. Finite element analyses were performed using local properties laser beam AA2198 obtained from micro-flat tensile test specimens. finite results show that, for as-welded condition that maximum strain was observed in lower region fusion zone, independently imperfections. By applying post treatment, concentration can now be noticed upper zone all ageing times due elongation at fracture values.