A New Structural Health Monitoring System for Composite Plate

Abstract:

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Damage detection in composite materials can be divided into active and passive approaches. The active approach is usually based on various non-destructive techniques utilizing actuators and/or receivers. Simple laser scans, revealing the change in Lamb wave response amplitudes, have been used to locate delamination and estimate its severity in a composite plate. The validity of the proposed method is demonstrated through experimental studies in which input signals exerted at piezoelectric (PZT) patches on a composite plate are successfully reconstructed by using the time reversal method. The ultimate goal of this study is to develop a reference-free damage diagnosis technique based on the time reversal process so that defects can be identified without relying on any past baseline data.

Info:

Periodical:

Advanced Materials Research (Volumes 183-185)

Edited by:

Yanguo Shi and Jinlong Zuo

Pages:

406-410

DOI:

10.4028/www.scientific.net/AMR.183-185.406

Citation:

N. Z. Zhao and S. Yan, "A New Structural Health Monitoring System for Composite Plate", Advanced Materials Research, Vols. 183-185, pp. 406-410, 2011

Online since:

January 2011

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Price:

$35.00

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