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Proceedings Paper

Automated shearography for nondestructive evaluation and strain measurement
Author(s): Y.Y. Hung
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Paper Abstract

Shearography is equivalent to a full-field strain gage which reveals flaws in materials by looking at flaw-induced strain anomalies which are translated into anomalies in the fringe pattern. This paper presents a technique that allows the phase distribution in shearographic fringe patterns to be automatically and precisely determined, thus eliminating the human interpretation of fringe patterns. Applications of the technique for automated nondestructive evaluation and strain measurement are demonstrated.

Paper Details

Date Published: 7 July 1995
PDF: 12 pages
Proc. SPIE 2455, Nondestructive Evaluation of Aging Aircraft, Airports, Aerospace Hardware, and Materials, (7 July 1995); doi: 10.1117/12.213538
Show Author Affiliations
Y.Y. Hung, Oakland Univ. (United States)


Published in SPIE Proceedings Vol. 2455:
Nondestructive Evaluation of Aging Aircraft, Airports, Aerospace Hardware, and Materials
Tobey M. Cordell; Raymond D. Rempt, Editor(s)

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