Sanbi, M. and El Marhoune, M. and Essoufi, E.H. and Faik, L.A. and Rahmoune, M. (2016) Centrifugal and thermal influence on the dispersion of surface waves propagating on a thermopiezoelectric half-space. International Journal of Mechanical and Mechatronics Engineering, 16 (2). pp. 70-78.

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Abstract

The paper presents an analysis of the thermal and Centrifugal effects on the behavior of the acoustic waves propagating in a half space thermopiezoelectric material surface in the framework of linear thermopiezoelectricity including Coriolis and centrifugal forces. The secular piezothermoelastic generalized equations are formulated and mathematical boundary conditions in closed and isolated form are derived. The characteristics of surface waves propagating in generalized piezothermoelastic solid half-space and their dependence upon geometric and physical parameters have been investigated. It is shown that the Rayleigh and Bleustein-Gulyaev waves, depending of thermal and physical properties of material, can be suppressed by rotation, and are generally dispersive. However, like in piezoelectric half space, there is certain abnormal dispersion for small rotation perturbations and the Coriolis and centrifugal forces on dispersion are generally of the same order. The pre-heating temperature of the material, thermomelastic and pyroelectric coupling effects have not to be neglected. Using PZT-6B as a thermopiezoelectric model material, Numerical and results are generated, simulated and commented. © 2016 IJENS.

Item Type: Article
Subjects: Engineering
Divisions: SCIENTIFIC PRODUCTION > Engineering
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:47
URI: http://eprints.umi.ac.ma/id/eprint/3264

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