title: Deviation of a monochromatic Lamb wave beam in anisotropic multilayered media: asymptotic analysis, numerical and experimental results.
abstract: The aim of this paper is threefold: to describe the physical phenomenon of the excitation of modal waves such as Lamb waves, in anisotropic multilayered media, by a monochromatic incident beam, using an asymptotic approach; to present a three-dimensional model using the decomposition of the incident beam into monochromatic plane waves (the formalism is applied to the particle displacement vector); to illustrate the phenomenon both numerically and experimentally. Numerical and experimental maps of the reflected field of pressure are presented, and the reradiation of the Lamb wave beam in an oblique plane is theoretically and numerically illustrated.
authors.affiliation: Laboratoire d'Acoustique, Université du Maine (LAUM), UMR CNRS 6613, Avenue Olivier Messiaen, 72 085 Le Mans, Cedex 9, France. Catherine.Potel@univ-lemans.fr
authors.forename: Catherine
authors.initials: C
authors.lastname: Potel
authors.forename: Stéphane
authors.initials: S
authors.lastname: Baly
authors.forename: Jean-François
authors.initials: JF
authors.lastname: de Belleval
authors.forename: Mike
authors.initials: M
authors.lastname: Lowe
authors.forename: Philippe
authors.initials: P
authors.lastname: Gatignol