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Proceedings Paper

Application of holographic interferometry in engineering fracture mechanics
Author(s): Xiaohai Zhang; Gongxin Yu; Xinmin Qi; Lihua Yuan; Futai Zou
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Paper Abstract

Stress corrosion damage has a great proportion in modern machine engineering. The danger resulted from it is because corrosion crack is fine and not easy to be found by eyes. Therefore, it's important to study stress corrosion fracture in the field of engineering fracture mechanics. In this paper, the real-time method and double-exposure method in holographic interferometry are used to monitor and measure crack extension procedure in high-strength steel placed in corrosion environment, and record holographic interferogram. The test results indicate that this method can display clearly change procedure of strain interference fringes at crack-tip, determine stress corrosion fracture starting point of stress corrosion and KISCC. Compared with other methods, it has obvious advantages.

Paper Details

Date Published: 9 October 2000
PDF: 4 pages
Proc. SPIE 4221, Optical Measurement and Nondestructive Testing: Techniques and Applications, (9 October 2000); doi: 10.1117/12.402639
Show Author Affiliations
Xiaohai Zhang, Nanchang Institute of Aeronautical Technology (China)
Gongxin Yu, Nanchang Institute of Aeronautical Technology (China)
Xinmin Qi, Nanchang Institute of Aeronautical Technology (China)
Lihua Yuan, Nanchang Institute of Aeronautical Technology (China)
Futai Zou, Nanchang Institute of Aeronautical Technology (China)


Published in SPIE Proceedings Vol. 4221:
Optical Measurement and Nondestructive Testing: Techniques and Applications

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