| 切口参数对静态弯曲断裂和超低周疲劳的影响 |
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| 引用本文： | 韦尧兵,芮执元,李中.切口参数对静态弯曲断裂和超低周疲劳的影响[J].兰州理工大学学报,1997(2). |
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| 作者姓名： | 韦尧兵 芮执元 李中 |
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| 作者单位： | 甘肃工业大学机电工程系，永盛链条有限公司 |
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| 摘 要： | 探讨了切口参数对静态弯曲应力应变曲线和切口半径对断裂名义应力的影响，并给出了以切口根半径作参量的断裂条件．分别分析了切口半径对超低周应变疲劳和应力疲劳曲线的影响，得出应变疲劳曲线比应力疲劳曲线更能反映超低周疲劳特性的结论．
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| 关 键 词： | 断裂 切口 疲劳 超低周 应力 应变 |
The effect of notch parameter on stationary bending fracture and super low cycle fatigue |
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| Wei Yaobing,Rui Zhiyuan.The effect of notch parameter on stationary bending fracture and super low cycle fatigue[J].Journal of Lanzhou University of Technology,1997(2). |
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| Authors: | Wei Yaobing Rui Zhiyuan |
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| Abstract: | The effect of notch parameters on static bending stress strain curve and that of notch radius on nominal fracture stress are discussed. Fracture condition with notch root radius as a parameter is represented. The effects of notch radius on strain fatigue and stress fatigue curves in the case of super low cycle are analyzed, which shows that strain fatigue curve can more accurately reflect the characteristics of super low cycle than stress fatigue curve. |
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| Keywords: | fracture notch fatigue super low cycle stress strain |
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