LASER-GENERATED ULTRASONIC GUIDED-WAVES IN FIBER-REINFORCED PLATES - THEORY AND EXPERIMENT

Citation
Lp. Scudder et al., LASER-GENERATED ULTRASONIC GUIDED-WAVES IN FIBER-REINFORCED PLATES - THEORY AND EXPERIMENT, IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 43(5), 1996, pp. 870-880
Citations number
21
Categorie Soggetti
Engineering, Eletrical & Electronic",Acoustics
ISSN journal
08853010
Volume
43
Issue
5
Year of publication
1996
Pages
870 - 880
Database
ISI
SICI code
0885-3010(1996)43:5<870:LUGIFP>2.0.ZU;2-1
Abstract
A pulsed laser source and a capacitance transducer detector have been used to record the propagation of guided waves in carbon fiber-reinfor ced polymer composite laminates, Despite the multimode nature of the r ecorded data, it is shown that the phase velocity dispersion curve of the a(o) mode can be extracted readily from the waveforms. Experimenta l dispersion curves have been compared to phase velocity predictions f rom a global matrix theory, Reasonable correlation between theory and experiment is obtained, demonstrating the validity of the calculations and experimental method.