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Proceedings Paper

Lamb wave tomographic imaging system for aircraft structural health assessment
Author(s): Willi G. Schwarz; Michael E. Read; Matthew J. Kremer; Mark K. Hinders; Barry T. Smith
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Paper Abstract

A tomographic imaging system using ultrasonic Lamb waves for the nondestructive inspection of aircraft components such as wings and fuselage is being developed. The computer-based system provides large-area inspection capability by electronically scanning an array of transducers that can be easily attached to flat and curved surface without moving parts. Images of the inspected area are produced in near real time employing a tomographic reconstruction method adapted from seismological applications. Changes in material properties caused by structural flaws such as disbonds, corrosion, and fatigue cracks can be effectively detected and characterized utilizing this fast NDE technique.

Paper Details

Date Published: 28 January 1999
PDF: 5 pages
Proc. SPIE 3586, Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware III, (28 January 1999); doi: 10.1117/12.339898
Show Author Affiliations
Willi G. Schwarz, Physical Sciences Inc. (United States)
Michael E. Read, Physical Sciences Inc. (United States)
Matthew J. Kremer, Physical Sciences Inc. (United States)
Mark K. Hinders, College of William and Mary (United States)
Barry T. Smith, College of William and Mary (United States)


Published in SPIE Proceedings Vol. 3586:
Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware III
Ajit K. Mal, Editor(s)

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