DocumentCode
2105773
Title
Phase and group velocity in components of Lamb waves in pulses
Author
Moreno, E. ; Castillo, Maribel ; Acevedo, Pedro
Author_Institution
DISCA, Univ. Nacional Autonoma de Mexico, Mexico City, Mexico
Volume
1
fYear
1999
fDate
17-20 Oct. 1999
Firstpage
835
Abstract
This paper describes a theoretical and experimental study of the pulse propagation in plates, using Fourier-Laplace transform for the solution of Lame equations. It is shown that a pulse in a plate is formed by three fundamental components with its own dispersion relation. One of these components is the antisymmetrical Lamb wave, which is identified in the experiments.
Keywords
Fourier transforms; Laplace transforms; surface acoustic waves; ultrasonic dispersion; ultrasonic materials testing; ultrasonic propagation; ultrasonic velocity; Fourier-Laplace transform; Lamb wave components; Lame equations; antisymmetrical Lamb wave; dispersion relation; fundamental components; group velocity; isotropic plates; phase velocity; pulse propagation; Boundary conditions; Dispersion; Elasticity; Fourier transforms; Frequency; Mechanical factors; Partial differential equations; Rheology; Transducers; Viscosity;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE
Conference_Location
Caesars Tahoe, NV
ISSN
1051-0117
Print_ISBN
0-7803-5722-1
Type
conf
DOI
10.1109/ULTSYM.1999.849526
Filename
849526
Link To Document