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Proceedings Paper

Measuring strain in metals through paint
Author(s): Efrain A. Mandracchia; David A. Crawford
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Paper Abstract

Direct strain measurement using strain gauges, in the assessment of structural integrity, has been impeded for years by the need for extraordinary surface preparation. New laws and regulations concerning hazardous materials and lead paint removal are likely to further restrict the use of resistance strain gauges. A new acoustic strain measurement system has been tested in the lab to demonstrate the ability of the system to measure strain through paint. These tests confirm the relationship between liftoff (the distance between the transmitter and receiver surfaces and the metal-under-test) and transducer performance and demonstrate that strain can be measured through paint using ultrasonic techniques.

Paper Details

Date Published: 22 April 1996
PDF: 10 pages
Proc. SPIE 2719, Smart Structures and Materials 1996: Smart Systems for Bridges, Structures, and Highways, (22 April 1996); doi: 10.1117/12.238848
Show Author Affiliations
Efrain A. Mandracchia, Sonic Force Corp. (United States)
David A. Crawford, Sonic Force Corp. (United States)


Published in SPIE Proceedings Vol. 2719:
Smart Structures and Materials 1996: Smart Systems for Bridges, Structures, and Highways
Larryl K. Matthews, Editor(s)

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