| 双光束、夹层、载波散斑干涉法及其在断裂力学中的应用 |
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| 引用本文： | 原方,韩连元.双光束、夹层、载波散斑干涉法及其在断裂力学中的应用[J].河南科学,1993(Z1). |
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| 作者姓名： | 原方 韩连元 |
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| 作者单位： | 郑州粮食学院，郑州工学院 郑州 450052，郑州 450002 |
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| 摘 要： | 文献分别介绍了作者对双光束散斑干涉法以及测试范围、双光束夹层散斑干涉法、双光束载波散斑干涉法的探讨和见解。本文概括地总结,并将其应用于断裂力学,实现了一种确定带裂纹试件应力强度因子的新方法——散斑位移配置法。
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| 关 键 词： | 双光束 夹层 载波 散斑干涉 应力强度因子 |
DUAL-BEAM CARRIER SANDWICH SPECKLE INTERFEROMETRY AND ITS APPLICATIONS IN FRACTURE MECHANICS |
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| Yuan Fang,Han Lianyuan Zhengzhou Grain College,Zhengzhou Zhengzhou Instiute of Technology Zhengzhou.DUAL-BEAM CARRIER SANDWICH SPECKLE INTERFEROMETRY AND ITS APPLICATIONS IN FRACTURE MECHANICS[J].Henan Science,1993(Z1). |
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| Authors: | Yuan Fang Han Lianyuan Zhengzhou Grain College Zhengzhou Zhengzhou Instiute of Technology Zhengzhou |
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| Institution: | Yuan Fang,Han Lianyuan Zhengzhou Grain College,Zhengzhou 450052 Zhengzhou Instiute of Technology Zhengzhou 450002 |
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| Abstract: | Based on the former research work, the dual beam speckle interferometry is studied, some new physical phenomena of speckle pattern are discovered. Explicit mathematics and physics explanation are given. Several meaningful conclusions are obtained. According to the study of the dual-beam speckle interferometry, the authors also present two new measuring methods, which can be used to enlarge the measurable range and to im- prove the sensitivity and accuracy of the dual-beam speckle interferometry. The new speckle patterns are convenient to be processed by computers. The application of the dual--beam speckle interferometry is shown in solving the fracture mechanies to get the stress intensity factor K_1 in different kinds of specimens. |
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| Keywords: | dual-beam Sandwich Carrier Speckle interferometry Stress intensity factor K_1 |
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