Development of Welding Distortion Analysis Method Using Residual Strain as Boundary Condition

Yun Sok Ha; Si Hoon Cho; Tae Won Jang

doi:10.4028/www.scientific.net/MSF.580-582.649

Paper Titles

Experimental Investigations on Explosive Cladding of Cp-Titanium / AISI 304 Stainless Steel
p.629

Applicability Evaluation of SS (Structural Stress) Method on Actual Project
p.633

Analysis of Welding Residual Stress of Steel Pipes
p.637

Forefront in High Accurate Prediction of Welding Distortion in Japan
p.645

Development of Welding Distortion Analysis Method Using Residual Strain as Boundary Condition
p.649

Weldability Studies on the Replacement Repair Welded Joints of a Damaged Steel Bridge
p.655

Development of Non-Equilibrium Simulation Model of Gas Tungsten Arc
p.659

Fatigue Damage Model for Numerical Assessment of Fatigue Characteristics
p.663

Study of Weldability for Circularly Input Heat
p.667

HomeMaterials Science ForumMaterials Science Forum Vols. 580-582Development of Welding Distortion Analysis Method...

Development of Welding Distortion Analysis Method Using Residual Strain as Boundary Condition

Abstract:

There are two ways of conventional thermal distortion analysis. One is thermal elastoplastic analysis and the other is equivalent forces method based on inherent strain. The former needs exorbitant analysis time, while the latter cannot obtain stress results and requires more time with loads modeling on curved plates. To solve those time-consuming problems, a new kind of thermal distortion analysis method was developed. In this method, inherent strains are devised to be used as direct input factors as boundary conditions. Suggested analysis method was already adopted at welding distortion analysis of large hull block, which was considered as impossible.