Application of digital-image correlation method to dynamic displacement measurements

Yuwen Qin; Baohui Liu; Xinhua Ji; Y.Y. Hung

doi:10.1117/12.468764

29 May 2002 Application of digital-image correlation method to dynamic displacement measurements

Yuwen Qin, Baohui Liu, Xinhua Ji, Y.Y. Hung

Proceedings Volume 4537, Third International Conference on Experimental Mechanics; (2002) https://doi.org/10.1117/12.468764
Event: Third International Conference on Experimental Mechanics, 2002, Beijing, China

Abstract

This paper presents a method, which is based on the Digital-image Correlation Method, for measuring the surface dynamic displacement field of objects under dynamic loading. A high-speed camera is used to record the deformed digital images of the specimen surface under dynamic excitation. By extracting two images at random intervals and use a computer algorithm, the dynamic displacement field of the object surface can be acquired accurately; the precision is in the order of microns.

Citation Download Citation

Yuwen Qin, Baohui Liu, Xinhua Ji, and Y.Y. Hung "Application of digital-image correlation method to dynamic displacement measurements", Proc. SPIE 4537, Third International Conference on Experimental Mechanics, (29 May 2002); https://doi.org/10.1117/12.468764

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