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Proceedings Paper

Progress in thermosonic crack detection
Author(s): Lawrence D. Favro; Xiaoyan Han; Zhong Ouyang; Robert L. Thomas
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Paper Abstract

We describe progress in thermosonic crack detection. In this technique, a short single pulse of ultrasound is used to cause cracks to heat up and become visible in the infrared. A low frequency (say 10's of kHz) ultrasonic transducer infuses the sample with sound. Where cracks, disbonds, delaminations or other defects are present, the sound field causes the defect to heat locally. The technique is applicable to large and irregularly shaped objects. We present illustrative applications of this technology to aerospace, and automotive inspections.

Paper Details

Date Published: 23 March 2001
PDF: 4 pages
Proc. SPIE 4360, Thermosense XXIII, (23 March 2001); doi: 10.1117/12.421046
Show Author Affiliations
Lawrence D. Favro, Wayne State Univ. (United States)
Xiaoyan Han, Wayne State Univ. (United States)
Zhong Ouyang, Wayne State Univ. (United States)
Robert L. Thomas, Wayne State Univ. (United States)

Published in SPIE Proceedings Vol. 4360:
Thermosense XXIII
Andres E. Rozlosnik; Ralph B. Dinwiddie, Editor(s)

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