Residual stress predictions of safe-endozzle in CAP1400 nuclear power plant reactor

摘要

This work presents finite element simulation results of residual stresses in safe-endozzle dissimilar welded joints of CAP1400 nuclear power plant.A whole process model including cladding,buttering,post weld heat treatment,machine and multi-pass welding is established based on SYSWELD software to investigate the evolution of residual stress in aforementioned manufacturing processes and the effects of groove type and welding sequence on the residual stresses.