SURFACE PIEZOELECTRICITY FOR A PLANE BOUNDARY
Material at or near a surface usually possesses different properties than the bulk material.The effect of such material heterogeneity may become remarkable when the surface-to-volume ratio of a body is large.In this paper,a plane boundary of a piezoelectric body is modeled as a thin layer with specified material properties.The state-space formalism is employed to give a transfer relation between the state vectors at the top and bottom surfaces of the layer.Using the power series of the transfer matrix,the equations of surface piezoelectricity for different orders are derived.A simple example is given to demonstrate the surface effect on wave propagation in a half-space.
surface piezoelectricity plane boundary state-space formalism
W.Q.Chen
Department of Engineering Mechanics,Zhejiang University,Hangzhou 310027,China
国际会议
The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)
上海
英文
503-510
2011-05-22(万方平台首次上网日期,不代表论文的发表时间)