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Proceedings Paper

Measurement of initial stresses in epoxy resin model by phase-shift technique and the analysis of its sensitivity by computer analogy
Author(s): Xinhua Ji; Yuqiang Deng; Zhende Hou; Yuwen Qin
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Paper Abstract

In this paper, the four-step phase shift method is applied to obtain the initial stress components in an unloaded square plate made of epoxy resin. The computer analogy images with random noise are used to study the sensitivity and reliability of four step birefringent shift method in the low signal condition. The computer experiment shows that the reliable result could be obtained even the phase is less than 1/8 fringe order with laser noise.

Paper Details

Date Published: 29 May 2002
PDF: 4 pages
Proc. SPIE 4537, Third International Conference on Experimental Mechanics, (29 May 2002); doi: 10.1117/12.468871
Show Author Affiliations
Xinhua Ji, Tianjin Univ. (China)
Yuqiang Deng, Tianjin Univ. (China)
Zhende Hou, Tianjin Univ. (China)
Yuwen Qin, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 4537:
Third International Conference on Experimental Mechanics

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