Effect of Combined Fatigue and Creep 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,得到了多軸應力下蠕變疲勞交互作用的特性及斷口的微觀相圖,并且提出了多軸應力狀態下疲勞壽命的統一方程.Abstract: Based on experiments of low-cycle tension-compression, torsion and tension-torsion fatigue with holding time, the interactional law of creep and fatigue under multiaxial stress is proposed. And the micromechanism of equilibrium diagrams is analysed.Finally, a unite equation about fatigue life under multiaxial stress is concluded.
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Key words:
- creep and fatigue /
- multiaxial stress /
- holding time
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