_ incremental form of evolution law of domain switching is developed by taking the volume fraction of domains as key intrinsic factors . the main factors that have great influence on domain switching are material parameters , domain wall motion , domain volume fraction and the interaction energy between inclusion and matrix . inclusion and its neighbors could be addressed in the description as well ? ?建立了以电畴翻转时的体积分数增量为中心的，基于铁电畴壁运动特性的剩余应变及电位移的增量形式的演化方程，在其中包含有材料参数、畴壁运动、电畴形式、电畴体积分数及基体与夹杂、夹杂与夹杂等相互间能量作用等影响因素。
The boundary conditions related to electric variables are discussed and this facilitates the solution of global stiffness equation . numerical examples are given at the end of the paper to calculate laminated plates with various kinds of elastic and electric boundary conditions . some results are compared with analytical ones 在此基础上，利用了matlab语言编制了具有一定工程意义的计算机程序，对于各种边界条件以及各种形状的压电层合板和非压电层合板的位移、应力、电势、电位移以及电场强度等做了计算与分析。
Abstract : the anti - plane problem in transversely isotropic magnetoelectroelastic materials containing an elliptic inclusion is considered by using the complex variable approaches . the analytical expressions for the field variables in both the matrix and the inclusion are obtained when the stresses and the electromagnetic fields at infinity are uniform . the results show that the stress , the electric displacement and the magnetic induction inside the inclusion are constants 文摘:用复变量方法研究了横观各向同性电磁弹性固体的反平面夹杂问题，得到了远场均匀应力和电磁场作用下夹杂内外弹性场和电磁场的解析表达式，结果表明夹杂内的应力、电位移和磁感应强度为常量。
