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Proceedings Paper

Imaging of disbond in adhesive joints with Lamb waves
Author(s): Vasile Mustafa; Ahmad Chahbaz; D. Robert Hay; Michel Brassard; S. Dubois
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Paper Abstract

Lamb waves are increasingly attractive for nondestructive testing of adhesively bonded structures due to their unique properties. Larger areas can be inspected using single pulse excitation compared to localized point-by-point standard bulk wave ultrasonic testing with only two modes, longitudinal or shear waves. Lamb waves offer an infinite number of guided wave modes to design wave structure and/or field distributions having specific sensitivity to certain defects, material properties and geometry of the component. The objective of this work was to study the sensitivity and efficiency of adhesive bond inspection using Lamb waves and to facilitate the interpretation through imaging.

Paper Details

Date Published: 15 November 1996
PDF: 11 pages
Proc. SPIE 2944, Nondestructive Evaluation of Materials and Composites, (15 November 1996); doi: 10.1117/12.259048
Show Author Affiliations
Vasile Mustafa, Tektrend International Inc. (Canada)
Ahmad Chahbaz, Tektrend International Inc. (Canada)
D. Robert Hay, Tektrend International Inc. (Canada)
Michel Brassard, Tektrend International Inc. (Canada)
S. Dubois, Dept. of Defense/Aerospace Telecommunications Engineering Support Squadron (United States)

Published in SPIE Proceedings Vol. 2944:
Nondestructive Evaluation of Materials and Composites
Steven R. Doctor; Carol A. Nove; George Y. Baaklini, Editor(s)

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