Numéro
J. Phys. IV France
Volume 02, Numéro C1, Avril 1992
Deuxième Congrès Français d'Acoustique / Second French Conference on Acoustics
Page(s) C1-1015 - C1-1018
DOI http://dx.doi.org/10.1051/jp4:19921223
Deuxième Congrès Français d'Acoustique / Second French Conference on Acoustics

J. Phys. IV France 02 (1992) C1-1015-C1-1018

DOI: 10.1051/jp4:19921223

SCATTERING BY A SEMI-INFINITE ELASTIC PLATE IMMERSED IN WATER

M. ECH-CHERIF EL-KETTANI, P. PAREIGE and F. LUPPE

Laboratoire d'Acoustique Ultrasonore et d'Electronique, L.A.U.E., U.R.A. C.N.R.S. 1373, Place R. Schuman, F-76610 Le Havre, France


Abstract
We present an experimental study of the acoustic scattering by a semi-infinite plate embedded in water, using short pulse signals. The damping coefficient of Lamb modes and their retroreflection coefficient at the extremity of the plate are investigated. The results are presented for four different Lamb modes. We show that the modes with a stronger "transversal" character have a higher retroreflection coefficient.



© EDP Sciences 1992