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Effect of welding sequences on residual stresses |
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| Authors: | Tso-Liang Teng Peng-Hsiang Chang |
| Affiliation: | a University of National Defense, Chung Cheng Institute of Technology, Ta-shi, Tao-Yuan 335, Taiwan, ROC b Department of Mechanical Engineering, Da-Yeh University, 112 Shan-Jiau Road, Da-Tsuen, Changhua 515, Taiwan, ROC c 455 Wing Air Force, Taiwan, ROC |
| Abstract: | Accurately predicting welding residual stresses and developing an available welding sequence for a weld system are pertinent tasks since welding residual stress is inevitably produced in a welded structure. This study analyzes the thermomechanical behavior and evaluates the residual stresses with various types of welding sequence in single-pass, multi-pass butt-welded plates and circular patch welds. This is achieved by performing thermal elasto-plastic analysis using finite element techniques. Furthermore, this investigation provides an available welding sequence to enhance the fabrication process of welded structures. |
| Keywords: | Welding sequences Residual stresses Butt-welded Circular patch welds |
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