SH WAVE DISPERSION OF THE FUNCTIONALLY GRADED PIEZOELECTRIC HOLLOW CYLINDER
In this paper, the SH wave propagation in a functionally graded piezoelectric hollow cylinder is studied. With the piezoelectricity of an orthotropic symmetry, the wave equations and system matrices for state vector are obtained for SH wave propagating along the circumferential direction. The displacement under a transient load is solved for the calculation of the dispersion spectra with gradient profile under electrically open or closed boundary. It is found that the circumferential propagation of SH wave is coupled to the electric field. The zero-order mode SHO is non-dispersive under the electrically open boundary, while it is dispersive under the electrically closed boundary, and the linear gradient profile has relatively more influence on the latter case. This result provides the theoretical base for the excitation and detection of the SH wave in an inhomogeneous hollow cylinder.
Functionally graded Piezoelectric Hollow cylinder Wave propagation Dispersion
Yongdong PAN Zheng ZHONG
School of Aerospace Engineering and Applied Mechanics, Tongji University, 1239 Siping Road Shanghai, 200092, P. R. China
国际会议
深圳
英文
489-493
2011-12-09（万方平台首次上网日期，不代表论文的发表时间）