Love-Type Wave Propagation in Functionally Graded Piezomagnetic Material Resting on Piezoelectric Half-Space

摘要

The propagation of Love-type waves in functionally graded piezomagnetic layer lying on a piezoelectric half-space is studied. We have considered the interface between the Functionally Graded Piezomagnetic Material (FGPM) layer and piezoelectric half-space as imperfect and the imperfection is taken in linear form by spring model. The exponential variation is taken for the material parameters of the layer along the thickness direction. The dispersion relation in determinant form has been obtained for both magnetically open and short cases. Numerical computation and graphical demonstration have been carried out to observe the effect of gradient factor, layer's width, and the interfacial constant on the phase velocity of Love-type waves. For validation, the present study is matched with classical Love wave result. The application of the present work may be found in designing and optimization of Surface Acoustic Wave (SAW) devices and sensors.