非理想界面弹性层/压电柱结构中SH波的传播特性  

PROPAGATION BEHAVIORS OF SH WAVES IN ELASTIC LAYER/PIEZOELECTRIC CYLINDER STRUCTURES WITH AN IMPERFECT INTERFACE

作　　者：王艳红[1] 李泰松[2] 

机构地区：[1]中国人民解放军军事交通学院,天津300161 [2]天津国土资源和房屋职业学院,天津300270

出　　处：《固体力学学报》2010年第3期252-257,共6页Chinese Journal of Solid Mechanics

摘　　要：研究了各向同性弹性层与压电柱之间非理想连接时沿周向传播的SH波的频散特性.弹性层表面力学自由;弹性层与压电柱之间应力连续、位移间断.通过求解控制方程,将问题的解用Bessel函数表示,利用界面条件和边界条件得到频散方程,然后对其进行数值求解,分析了界面性态、材料常数和几何尺寸对SH波传播特性的影响.This paper is concerned with the dispersion behaviors of SH waves propagating in an elastic layer/piezoelectric cylinder structure with an imperfect interface.The surface of the elastic layer is assumed to be mechanically free.The stress at the interface is continuous,while the displacement is discontinuous.By solving the equations,the solution to the problem is expressed by Bessel function.By using the boundary conditions and the interface conditions,the dispersion equation is derived.The numerical examples are provided to show that the combined effect of the imperfect interface,the thickness ratio of elastic layer to piezoelectric cylinder and the material properties on the dispersion characteristics.

关 键 词：压电材料 非理想界面 剪切滞后模型 SH波 频散特性 

分 类 号：O347.4[理学—固体力学]