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- Title
Ultrasonic high frequency lamb waves for evaluation of plate structures.
- Authors
Ranjbar Naserabadi, M.; Sodagar, S.
- Abstract
The potentials of high frequency Lamb wave modes are investigated in the inspection of plate-like structures. The wave propagation characteristics of higher order wave modes and the corresponding sensitivity and detectability are studied. Finite element simulations are carried out using infinite elements to model the ultrasonic wedge transducer and the inspection system. Experimental pulse-echo measurements are conducted to verify the influence of different modes characteristics predicted from the finite element simulations. The experimental measurements show a good agreement with the obtained numerical results for the fundamental modes, S and A, and the higher order modes, S and A, at 4 MHz mm of frequency-thickness.
- Subjects
LAMB waves; THEORY of wave motion; ULTRASONIC waves; ULTRASONIC transducers; ELECTROACOUSTIC transducers; FINITE element method
- Publication
Acoustical Physics, 2017, Vol 63, Issue 4, p402
- ISSN
1063-7710
- Publication type
Article
- DOI
10.1134/S106377101704011X