| 论疲劳缺口减缩系数K_f |
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| 引用本文： | 姚卫星,顾怡.论疲劳缺口减缩系数K_f[J].工程力学,1995,12(3):91-96. |
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| 作者姓名： | 姚卫星 顾怡 |
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| 作者单位： | 南京航空航天大学 |
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| 摘 要： | 本文简要回顾了疲劳减缩系数Ｋ_ｆ的定义和主要表达式，在此基础上本文从疲劳损伤的基本机理出发推导了定量描述Ｋ_ｆ的基本公式，讨论了影响Ｋ_ｆ值的主要因素，并用此理论分析了疲劳实验数值，获得了较为满意的结果。
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| 关 键 词： | 疲劳减缩系数K_f，疲劳机理，场强法 |
ON THE FATIGUE NOTCH FACTOR K_f |
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| Yao Weixing,Gu Yi.ON THE FATIGUE NOTCH FACTOR K_f[J].Engineering Mechanics,1995,12(3):91-96. |
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| Authors: | Yao Weixing Gu Yi |
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| Affiliation: | Nanjing University of Aeronautics and Astronautics |
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| Abstract: | In this paper, the definition and some expressions of fatigue notch factor K_f are briefly reviewed. A new expression of K_f is developed based on the fatigue damage mechanism.Some experimental results are analysed using the expression developed in the paper.It is shown that the predicted results are satisfactory. |
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| Keywords: | fatigue notch factor fatigue mechanism stress field strength |
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