| 缺口物理短裂纹上下界的确定方法 |
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| 引用本文： | 尚德广 王德俊. 缺口物理短裂纹上下界的确定方法[J]. 东北大学学报(自然科学版), 1996, 17(1): 99-103 |
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| 作者姓名： | 尚德广 王德俊 |
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| 作者单位： | 机械工程学院 |
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| 基金项目： | 国家教委博士点基金资助项目 |
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| 摘 要： | 根据缺口根部疲劳非扩展裂纹的性质及缺口根部应力应变场的特性，提出确定缺口物理短裂纹区间的方法，并解释其物理意义。最后用缺口短裂纹扩展的实验数据加以对照，验证其合理性。
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| 关 键 词： | 非扩展裂纹 应力强度因子 循环J积分 缺口 裂纹 |
Method of Determining Upper and Lower Boundary of Physical Short Crack at Notch |
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| Shang Deguang,Wang Dejun. Method of Determining Upper and Lower Boundary of Physical Short Crack at Notch[J]. Journal of Northeastern University(Natural Science), 1996, 17(1): 99-103 |
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| Authors: | Shang Deguang Wang Dejun |
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| Abstract: | A method of determining region of physical short crack at notch is presented according to the quality of fatigue non propagating crack and character of stress strain field at notch,and explaines the physical significance. This method is also proved to be reasonable based on experimental data of fatigue short crack at notch. |
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| Keywords: | fatigue short crack long crack non propagation crack stress intensity factor cyclic J integral. |
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