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Proceedings Paper

Residual stresses in aircraft components: II. Nondestructive characterization using leaky Lamb waves
Author(s): John C. Stranart; Shaker A. Meguid
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Paper Abstract

Cold working processes are well established for improving the fatigue life of critical load bearing components. The resulting unloading residual stresses are beneficial but there is now a need to nondestructively quantify and verify their levels in engineering components. It is therefore the purpose of this investigation to evaluate the capability of the leaky Lamb wave technique to characterize residual stresses. The component is ted as a transversely isotropic layered solid with wave velocities varying in each layer. Modeling indicates that the technique can characterize depth varying residual stresses. Experimental work indicates that the technique has potential as a quality assurance tool.

Paper Details

Date Published: 28 January 1999
PDF: 6 pages
Proc. SPIE 3586, Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware III, (28 January 1999); doi: 10.1117/12.339894
Show Author Affiliations
John C. Stranart, Univ. of Toronto (Canada)
Shaker A. Meguid, Univ. of Toronto (Canada)


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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