Acoustic wave transmission through piezoelectric structured materials.
This paper deals with the transmission of acoustic waves through multilayered piezoelectric materials. It is modeled in an octet formalism via the hybrid matrix of the structure. The theoretical evolution with the angle and frequency of the transmission coefficients of ultrasonic plane waves propagating through a partially depoled PZT plate is compared to finite element calculations showing that both methods are in very good agreement. The model is then used to study a periodic stack of 0.65 PMN-0.35 PT/0.90 PMN-0.10 PT layers. The transmission spectra are interpreted in terms of a dispersive behavior of the critical angles of longitudinal and transverse waves, and band gap structures are analysed. Transmission measurements confirm the theoretical calculations and deliver an experimental validation of the model.
Lam
M
M
Université François Rabelais de Tours, CNRS FRE 2448, INSERM U930, ENI du Val de Loire, Rue de la Chocolaterie, BP3410, 41034 Blois Cedex, France.
Le Clézio
E
E
Amorín
H
H
Algueró
M
M
Holc
Janez
J
Kosec
Marija
M
Hladky-Hennion
A C
AC
Feuillard
G
G
D000162:Acoustics; D008962:Models, Theoretical