Comparison of cross-weld creep testing and service welds |
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| Affiliation: | 1. State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031, China;2. Taihang Laboratory, Chengdu 610213, China;3. School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;4. AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China |
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| Abstract: | Creep testing of cross-weld specimens is often used to predict weld performance. The global stress state in a cross-weld creep test is substantially different to that occurring in service welds. Using finite element analysis (FEA), the results of cross-weld creep testing were compared with a number of service weld situations. This work was compared to previous published data. Modelling suggested that the results of cross-weld creep testing are not indicative of expected weld performance in service welds. |
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