Characteristics of the residual stress distribution in welded tubular T-joints

• Published in: Journal of mechanical science and technology Vol. 21; no. 10; pp. 1714 - 1719
• Main Authors: Jang, G.C, Chang, K.H, Lee, C.H
• Format: Journal Article
• Language: Korean
• Published: 대한기계학회 01.10.2007
• Subjects: 기계공학; Thermal-mechanical analysis; Residual stress; Welded tubular T-joint
• ISSN: 1738-494X; 1976-3824

Tubular T-joints are structural discontinuities that can be easily involved with stress concentrations. It is therefore necessary to estimate an internal stress distribution of T-joints. However, the complicated residual stresses are unavoidably produced adjacent to the joints by welding. In this paper, the residual stress distributions in welded tubular T-joints were analyzed by using a three-dimensional non-steady heat conduction analysis and a three-dimensional thermal elastic-plastic analysis. Characteristics of the residual stress distribution in welded tubular T-joints are investigated by the thermal-mechanical analysis results.