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Proceedings Paper

Crack detection of fiber reinforced beams based on Gabor wavelet transform
Author(s): Yu Liu; Zheng Li; Wei Zhang
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Paper Abstract

In this paper, a damage detection method for the fiber reinforced composite beam is studied by applying Gabor wavelet transform to the dispersive flexural wave analysis. The impact experiment of the pre-cracked beam is investigated. Since wave propagation in the composite beam is too complicated to obtain much information for damage detection, the Gabor wavelet is introduced into the experimental wave signals. From the wavelet results, the arrival times and the amplitudes of incident, crack-reflected and transmitted waves can be gained. At last, the crack location can be determined and the damage extent can be estimated from the crack-reflected wave.

Paper Details

Date Published: 25 August 2009
PDF: 5 pages
Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73753O (25 August 2009); doi: 10.1117/12.839263
Show Author Affiliations
Yu Liu, Peking Univ. (China)
Zheng Li, Peking Univ. (China)
Wei Zhang, Peking Univ. (China)


Published in SPIE Proceedings Vol. 7375:
ICEM 2008: International Conference on Experimental Mechanics 2008
Xiaoyuan He; Huimin Xie; YiLan Kang, Editor(s)

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