| 吴大方,高镇同.使用焦散线法与光弹法测定三维裂纹混合型应力强度因子[J].实验力学,1998,13(1): |
| 使用焦散线法与光弹法测定三维裂纹混合型应力强度因子 |
| Determination of Mixed mode Stress Intensity Factor for Three dimensional Crack by Caustics and Photoelasticity |
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| DOI： |
| 中文关键词: 三维,裂纹,应力强度因子,焦散线法,应力冻结,光弹法 |
| 英文关键词:Three dimensional crack stress intensity factor caustics stress freezing photoelasticity, |
| 基金项目: |
| 吴大方 高镇同 |
| 北京航空航天大学 |
| 摘要点击次数: 243 |
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| 中文摘要: |
| 本文介绍了将焦散线法与应力冻结，“解冻”技术相结合，使焦散线法用于测量三维体内部裂纹前缘应力强度因子的实验方法，并针对复杂应力状态下三维裂纹前缘的不同应变奇异场，合理地综合运用焦散线法与三维光弹法，实际测量与分离了三维裂纹前缘混合型应力强度因子。 |
| 英文摘要: |
| An experimental method of determining the stress intensity factor for a inner crack within three dimensional structure is presented. The method is based on caustics and photoelasticity. By using the stress freezing and stress releasing treatment in com |
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