Author:
Rousset G.,Lévesque D.,Bertrand L.,Maldague X.,Cielo P.
Abstract
A pulsed photothermoelastic technique for nondestructive testing of layered materials is described. A Fourier-transform signal analysis is presented for a quantitative characterization of subsurface defects. Discrepancies between the experimental results and the data obtained from the thin-plate analytical theory are interpreted through a finite-element numerical model. The effect of the vibrational properties of the whole structure is shown to be particularly important on the spectral features of the thermoelastic signal for small defects.
Publisher
Canadian Science Publishing
Subject
General Physics and Astronomy
Cited by
2 articles.
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