| 三维裂纹混合型应力强度因子的测定 |
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| 引用本文： | 吴大方,高镇同.三维裂纹混合型应力强度因子的测定[J].北京航空航天大学学报,1996,22(3):316-320. |
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| 作者姓名： | 吴大方 高镇同 |
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| 作者单位： | 北京航空航天大学飞行器设计与应用力学系 |
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| 摘 要： | 测定三维体内部裂纹前沿应力强度因子的分布，可搞清裂纹扩展规律，进行飞机结构的损伤容限设计，将反射焦散线法与应力冻结、解冻技术相结合，使焦散线法能够用于测量三维体裂纹尖端应力强度因子的分布，并综合使用光弹法和焦散线法和三维体裂纹混合型应力强度因子进行实验测定及分离。
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| 关 键 词： | 三维 裂纹 应力强度因子 焦散线法 应力解除 |
DETERMINATION OF MIXED MODE STRESS INTENSITY FACTORS FOR A 3 D CRACK |
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| Wu Dafang,Gao Zhentong.DETERMINATION OF MIXED MODE STRESS INTENSITY FACTORS FOR A 3 D CRACK[J].Journal of Beijing University of Aeronautics and Astronautics,1996,22(3):316-320. |
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| Authors: | Wu Dafang Gao Zhentong |
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| Abstract: | Distributions of stress intensity factors for 3 D crack tip were determined by using the method of reflected caustics in combination with the stress freezing and stress releasing technique.Mixed mode stress intensity factors for a 3 D crack under the complex stress condition were determined and separated by using the causitics and photoelastic methods. |
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| Keywords: | three dimension cracks stress intensity factors method of caustics stress relieving |
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