Study of residual stress reduction in welded joints using phase transformation behaviour of welding material. Studies on numerical simulation of temperature, microstructure, and thermal stress histories during welding and their application to welded structures (2^nd report)

Abstract

The residual stress generated in welded structures is well-known to exert a strong influence on features such as brittle fracture,¹ buckling,² stress corrosion cracking,³ fatigue,⁴ etc. It is therefore important to develop appropriate measures for evaluation of the residual stress distribution at structural locations requiring prevention of deformation or fracture and for suitable reduction of residual stress in response to the weld configuration being used.