Measurement of the scattering of a Lamb wave by a through hole in a plate

The Journal of the Acoustical Society of America
Paul Fromme, Mahir B Sayir

Abstract

Flexural waves propagating in an aluminum plate containing a circular hole are studied. In the experiments the first antisymmetric Lamb wave mode A0 is excited selectively by a piezoelectric transducer. The scattered field around a circular cavity is measured pointwise using a heterodyne laser interferometer. The measurements are compared with theoretical calculations. Different approximate analytical approaches, employing Kirchhoff and Mindlin types of plate theories to describe the scattered field, are used. Good agreement between the experimental data and the analytical solutions is found within the ranges of validity of the different models. Introduction of a small imperfection, like a notch, at the boundary of the cavity changes the measured scattered field

References

Oct 29, 2000·The Journal of the Acoustical Society of America·E V Malyarenko, M K Hinders
Mar 16, 2001·The Journal of the Acoustical Society of America·J Li, R L Rose
May 31, 2001·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·J Li, J L Rose
Sep 27, 2001·The Journal of the Acoustical Society of America·C ValleL J Jacobs
Oct 30, 2001·The Journal of the Acoustical Society of America·X M Wang, C F Ying
Jan 1, 1992·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·D N Alleyne, P Cawley

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Citations

Aug 6, 2002·Ultrasonics·Paul Fromme, Mahir B Sayir
Jan 8, 2008·The Journal of the Acoustical Society of America·Bernard Masserey, Paul Fromme
Jun 8, 2013·The Journal of the Acoustical Society of America·C Doherty, W K Chiu
Jul 12, 2012·The Journal of the Acoustical Society of America·Ching-Tai Ng, Martin Veidt
Jan 15, 2015·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Xin ChenThomas E Michaels
Dec 31, 2009·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Thomas ClarkeAnthony John Croxford
Sep 16, 2015·Ultrasonics·R ErnstJ Dual

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