Numerical study on the effect of residual stresses on stress intensity factor and fatigue life for a surface-cracked T-butt welded joint using numerical influence function method

Fatigue crack propagation (FCP) is the most threatening failure to welded joints due to high local stress concentration and the effect of welding residual stress (WRS). Therefore, fatigue life assessment of welded joints considering residual stress distribution is an important procedure in designing and maintaining of welded structures. In this study, fatigue life of welded structures is evaluated using the fracture mechanics approach. The WRS...