Twisting Deformation of Thin Plate Stiffened Structure under Welding

Abstract

To study the characteristic of the welding distortion in thin structures, experiments were conducted. The test model was a thin plate stiffened structure and a large twisting deformation was observed. The same structure was analyzed as a large deformation problem using a thermal elastic plastic FEM and a elastic FEM based on the concept of inherent deformation. The computed results by both methods showed the twisting deformation which is a typical buckling type deformation.