| 反射焦散线实验中斜入射光对应力强度因子测试精度的影响 |
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| 引用本文： | 周风华,虞吉林.反射焦散线实验中斜入射光对应力强度因子测试精度的影响[J].实验力学,1993,8(2):111-118. |
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| 作者姓名： | 周风华 虞吉林 |
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| 作者单位： | 中国科学技术大学，中国科学技术大学 合肥，230026，合肥，230026 |
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| 摘 要： | 本文用空间解析几何方法,推导了在一般非平行斜入射光条件下,裂纹体表面所形成的反射焦散线和初始曲线的方程.分析了倾斜入射光造成的焦散线畸变,给出了这种畸变造成的裂端应力强度因子测量误差的解析表达式.
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| 关 键 词： | 焦散线法 应力强度因子 入射光 |
Influence of Oblique Incidence on SIF Measurements by Causitic Method in Reflection Arrangement |
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| Zhou Fenghua Yu Jilin University of Science and Technology of China.Influence of Oblique Incidence on SIF Measurements by Causitic Method in Reflection Arrangement[J].Journal of Experimental Mechanics,1993,8(2):111-118. |
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| Authors: | Zhou Fenghua Yu Jilin University of Science and Technology of China |
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| Institution: | Zhou Fenghua Yu Jilin University of Science and Technology of China |
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| Abstract: | The equations of caustic curve and its initial curve for a crack illuminated by an oblique incident light beam in reflection arrangement were deduced using the space analytic geometry method.It was shown that the caustic curve will be distored by oblique incident light.The errors in measuring the stress intensity factor caused by this distortion were given in analytic forms. |
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| Keywords: | caustic method SIF measurement error analysis |
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