| 复杂载荷下的疲劳寿命估算 |
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| 引用本文： | 吕文阁,谢里阳,徐灏. 复杂载荷下的疲劳寿命估算[J]. 东北大学学报(自然科学版), 1996, 0(6) |
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| 作者姓名： | 吕文阁 谢里阳 徐灏 |
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| 作者单位： | 东北大学机械工程学院 |
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| 基金项目： | 国家教委优秀年轻教师重点跟踪资助项目,霍英东教育基金会资助项目 |
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| 摘 要： | 从疲劳过程本质上是材料静强度不断退化过程的观点出发，建立了一个强度退化模型．将模型应用于两级、多级和随机载荷下疲劳寿命估算，经试验和算例验证，表明该方法是合理可行的
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| 关 键 词： | 强度退化，剩余强度，疲劳寿命 |
Fatigue Life Prediction Under Complex Loading |
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| L Wenge,Xie Liyang,Xu Hao. Fatigue Life Prediction Under Complex Loading[J]. Journal of Northeastern University(Natural Science), 1996, 0(6) |
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| Authors: | L Wenge Xie Liyang Xu Hao |
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| Abstract: | A nonlinear and continuous strength degradation model is presented from the point of view that fatigue is the process during which material strength degrades constantly. The model is applied to predict residual lives for two level cyclic loading, multiple amplitude program loading and random loading, and verified by the experiment using 16 Mn steel. The results show that the method is reasonable and practicable. |
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| Keywords: | strength degradation residual strength fatigue life. |
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