Experimental Research on the Health Monitoring of the Composite Patch System Using Lamb Waves

Yi Shan Zhang; Zun Wang; Zhi Wang

doi:10.4028/www.scientific.net/AMM.446-447.1064

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 446-447Experimental Research on the Health Monitoring of...

Experimental Research on the Health Monitoring of the Composite Patch System Using Lamb Waves

Abstract:

This paper describes an experimental study on the use of Lamb wave propagation for the integrity assessment of the composite patch system. Composite repairs are performed to the cracked specimen. Two piezoelectric sensors were installed around the composite patch. The piezoelectric sensor response was recorded periodically during the fatigue test. Three types of the damage index based upon the piezoelectric sensor response were selected and calculated to describe the health of the composite patch system. The results show that the damage index based upon the waveform relativity has the best correlations with the expanding process of the damage of the composite patch system.

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Periodical:

Applied Mechanics and Materials (Volumes 446-447)

Pages:

1064-1068

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.446-447.1064

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Online since:

November 2013

Authors:

Yi Shan Zhang, Zun Wang, Zhi Wang

Keywords:

Composite Patch, Health Monitoring, Lamb Wave, Repair

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