Abstract
The special task group of the JSME Codes and Standards Committee has planned to make a guideline for excessive cyclic loading of piping. For this purpose, the special task group conducted benchmark analyses to simulate the test results of an elbow pipe under cyclic loading. The authors carried out a finite element analysis and evaluated the fatigue behavior and fatigue life of the elbow pipe under cyclic loading. The following results were obtained. (a) The crack initiation area was successfully predicted by the analyses. (b) The fatigue life of the elbow pipe was predicted conservatively by the analysis based on the prediction curve for piping components proposed by NUPEC and the revised Manson's universal slope method.
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