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Proceedings Paper

Passive damage detection in composite laminates with integrated sensing networks
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Paper Abstract

The initiation and propagation of damage in composite laminates generate Acoustic Emission. The use of real time AE monitoring has been quite extensive for in-service composite structures. In the present work, experimental and numerical studies were performed to characterize the acoustic wave propagation in thin glass/epoxy composite plates. Experimentally obtained and simulated emission signals were used to identify and locate the source of the acoustic wave. Signal processing algorithms and a passive damage diagnosis system based on AE techniques were proposed for continuously monitoring and assessing the structural health of composite laminates. The local sensing and distributed processing features of the sensor system result in a decreased demand for bandwidth and lower computational power needed at each node.

Paper Details

Date Published: 21 April 2008
PDF: 4 pages
Proc. SPIE 6935, Health Monitoring of Structural and Biological Systems 2008, 69351R (21 April 2008); doi: 10.1117/12.777003
Show Author Affiliations
Yi Huang, Univ. of California, San Diego (United States)
Fabrizia Ghezzo, Univ. of California, San Diego (United States)
Patrick Rye, Univ. of California, San Diego (United States)
Sia Nemat-Nasser, Univ. of California, San Diego (United States)


Published in SPIE Proceedings Vol. 6935:
Health Monitoring of Structural and Biological Systems 2008
Tribikram Kundu, Editor(s)

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