期刊
PRAMANA-JOURNAL OF PHYSICS
卷 81, 期 5, 页码 819-827出版社
INDIAN ACAD SCIENCES
DOI: 10.1007/s12043-013-0609-1
关键词
Piezoelectromagnetics; magnetoelectric effect; acoustic SH-waves in plates; wave dispersion; fundamental modes
Fundamental modes of new dispersive shear-horizontal (SH) acoustic waves propagating in the (6 mm) piezoelectromagnetic plate are studied. These SH-waves can propagate when the following boundary conditions are exploited for both the upper and lower surfaces of the plate: (1) when the surfaces are mechanically free, electrically and magnetically closed and (2) when the surfaces are mechanically free, electrically and magnetically open. The SH-waves depend on the electromagnetic wave speed and can only exist when the electromagnetic constant . The calculations (first evidence) were performed for the PZT-5H-Terfenol-D which is a composite with a large value of alpha. The limit cases of large values of alpha (alpha (2) = 0.5 epsilon mu, alpha (2) = 0.9 epsilon mu, and alpha (2) = 0.99 epsilon mu) are studied because they satisfy the limitation condition of alpha (2) < epsilon mu.
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