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Lamb waves beam deviation due to small inclination of the test structure in air-coupled ultrasonic NDT

Autor
Kichou, H.; Chavez-Dominguez, J. A.; Turo, A.; Salazar, J.; Garcia, M.
Tipus d'activitat
Article en revista
Revista
Ultrasonics
Data de publicació
2006-12
Volum
44
Número
Supplem. 1
Pàgina inicial
e1077
Pàgina final
e1082
DOI
https://doi.org/10.1016/j.ultras.2006.05.103 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S0041624X06001351?via%3Dihub Obrir en finestra nova
Resum
In Lamb waves inspection, an air-coupled transmitter transducer is oriented at a specific angle such that it generates a pure Lamb mode which propagates along the structure and interacts with any existing defects. For this inspection system, amplitude losses appears when small inclinations of the tested structure occurs. An important factor which affects directly these losses has been observed, it consists of the Lamb waves beam (LWB) deviation due to this bad alignment. In this work, a simple e...
Paraules clau
Air-coupled ultrasound, Beam deviation, Lamb waves, NDT
Grup de recerca
CREB - Centre de Recerca en Enginyeria Biomedica
GSS - Grup Sistemes Sensors

Participants