Residual Stress Analysis of AISI 304 Surface Welding Plate by 3D Finite Element Method

3 차원 유한요소법을 이용한 AISI 304 표면용접평판의 잔류응력해석

This study is performed to understand three dimensional characteristics of weld residual stress for the surface weld on the stainless steel plate. AISI 304 plate with one path weld on the surface was used as a test specimen. Finite element analysis was done to analyze thermal transient and residual stress due to weld. The result of finite element analysis was validated by previous paper and measurement data. Among various techniques for residual stress measurement, instrumented ball indentation method was applied. The calculated residual stresses by finite element analysis showed good agreement with the measured results.