On New Dispersive SH-Waves Propagating in Piezoelectromagnetic Plate

DOI: 10.4236/oja.2015.53011   PDF   HTML   XML   3,303 Downloads   3,761 Views   Citations

Abstract

This theoretical work discovers four new dispersive shear-horizontal (SH) waves propagating in the transversely isotropic piezoelectromagnetic plate of class 6 mm. In this work, the following mechanical, electrical, and magnetic boundary conditions at both the upper and lower free surfaces of the piezoelectromagnetic plate are utilized: the mechanically free surface, continuity of both the electrical and magnetic potentials, and continuity of both the electrical and magnetic inductions. The solutions for the new SH-wave velocities (dispersion relations) are found in explicit forms and then graphically studied. The graphical investigation has soundly illuminated several interesting peculiarities that were also discussed. The piezoelectromagnetic materials, also known as the magnetoelectroelastic media, are famous as smart materials because the electrical subsystem of the materials can interact with the magnetic subsystem via the mechanical subsystem, and vice versa. Therefore, it is very important to know the wave characteristics of such (composite) materials because of possible constitution of new technical devices with a high level of integration. It is obvious that the plate waves can be preferable for further miniaturization of the technical devices and used for the nondestructive testing and evaluation of thin piezoelectromagnetic films.

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Zakharenko, A. (2015) On New Dispersive SH-Waves Propagating in Piezoelectromagnetic Plate. Open Journal of Acoustics, 5, 122-137. doi: 10.4236/oja.2015.53011.

Conflicts of Interest

The authors declare no conflicts of interest.

References

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