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Proceedings Paper

Caustic phenomena in holographic interferometry
Author(s): Bingheng Xiong; Junchang Li; Liyun Zhong; Xiaoxu Lu; Zhengrong Wang; Zhaoyong Xu; Runhai Yang; Jinming Zhao; Shunyun Chen
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Paper Abstract

In a series of the experiments of real-time holographic interferometry, some dark shadow areas appear among the interference fringes. The appearing of the dark shadow area plays a very important role in the fracture process. We find that the appearing of these dark shadow regions are the phenomena of caustic in Fracture Mechanics. The shadow region is so called shadow spot in Fracture Mechanics and the factor of stress intensity can be calculated by measuring the size of the correosponding length of the shadow spot and the strain field can be calculated by traditional holographic method. Therefore, holographic method and caustic method can be combined together in holographic interferometry and it will lead to a wide application in Experimental Mechanics.

Paper Details

Date Published: 4 June 2003
PDF: 6 pages
Proc. SPIE 5005, Practical Holography XVII and Holographic Materials IX, (4 June 2003); doi: 10.1117/12.488217
Show Author Affiliations
Bingheng Xiong, Kunming Univ. of Science and Technology (China)
Junchang Li, Kunming Univ. of Science and Technology (China)
Liyun Zhong, Kunming Univ. of Science and Technology (China)
Xiaoxu Lu, Kunming Univ. of Science and Technology (China)
Zhengrong Wang, Kunming Univ. of Science and Technology (China)
Zhaoyong Xu, Seismology Bureau of Yunan Province (China)
Runhai Yang, Seismology Bureau of Yunan Province (China)
Jinming Zhao, Seismology Bureau of Yunan Province (China)
Shunyun Chen, Seismology Bureau of Yunan Province (China)


Published in SPIE Proceedings Vol. 5005:
Practical Holography XVII and Holographic Materials IX
Tung H. Jeong; Sylvia H. Stevenson, Editor(s)

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