Title :
Research on damage location of GFRP composites based on Morlet wavelet analysis
Author :
Ni, Junfang ; Yu, Yu
Author_Institution :
Sch. of Mechatron., Soochow Univ., Suzhou
Abstract :
The passive structural health monitoring system is built based on the theory of acoustic emission in this paper. According to dispersion properties of the Lamb wave propagated in the thin materials, Morlet wavelet transform and energy wave crest are used to calculate the time delay among different sensors. Structural damage locations of glass fiber reinforced composites (GFRP) H60 and P60 are researched comparison to aluminum thin board.
Keywords :
acoustic emission testing; condition monitoring; glass fibre reinforced composites; structural engineering; surface acoustic waves; wavelet transforms; GFRP composites; H60; Lamb wave propagation; Morlet wavelet analysis; Morlet wavelet transform; P60; aluminum thin board; damage location; glass fiber reinforced composites; passive structural health monitoring system; structural damage locations; Acoustic emission; Acoustic propagation; Acoustic sensors; Delay effects; Glass; Monitoring; Optical fiber sensors; Optical fiber theory; Wavelet analysis; Wavelet transforms; Lamb wave; Morlet wavelet transform; Passive monitoring; Time delay;
Conference_Titel :
Intelligent Control and Automation, 2008. WCICA 2008. 7th World Congress on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4244-2113-8
Electronic_ISBN :
978-1-4244-2114-5
DOI :
10.1109/WCICA.2008.4593215
