Life Prediction of Creep-Fatigue Interaction under Multiaxial Stress
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摘要: 通過對不同應變保持時間下的拉壓、扭轉和拉扭組合高溫疲勞試驗結果的分析,揭示了高溫多軸應力下蠕變-疲勞失效行為的主要因素,進而提出了簡捷有效的壽命計算模型和計算方法。Abstract: Analysis of experiment result of low-cycle tension-compression, torsion and tension-torsion fatigue with holding time has been done. The main factors of influencing failures of combined creep and fatigue under multiaxial stress and high temperature are re'examinated, and the simple model calculating method to predict the fatigue life are worked. It is verified that calculating method has a good practicability.
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Key words:
- multiaxial stress /
- creep and fatigue /
- holding time
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