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摘要: 近年来对多轴低周疲劳的研究已引起广泛重视，其疲劳损伤积累、裂纹萌生、寿命预测方法等都与单轴情形有很大的不同．本文对近年来多轴低周疲劳的研究现状进行了评述，讨论了各种多轴疲劳寿命估算方法，并着重讨论了非比例加载下的低周疲劳Abstract: In recent years, researchers have paid attention to the investigation of multiaxial low cycle fatigue. Fatigue damage cumulation, crack initiation and life prediction under multiaxial low cycle fatigue differ from those under uniaxial low cycle fatigue.Recent advances of multiaxial low cyclic fatigue are presented in the paper. Various evaluations of multiaxial low cycle fatigue life are discussed, and the emphasis is on the low cycle fatigue under nonproportional loading.
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Key words:
- multiaxial fatigue /
- low cycle fatigue /
- nonproportional loading /
- fatigue life /
- damage parameter
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