An approximate model for wave propagation in piezoelectric materials. I. Laminated composites
An approximate model for wave propagation in piezoelectric materials. I. Laminated composites
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DOI：
10.1063/1.369547
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发表时间：
1999-02
影响因子：
3.2
通讯作者：
A. Nayfeh;W. Faidi;W. Abdelrahman
中科院分区：
文献类型：
--
作者：
A. Nayfeh;W. Faidi;W. Abdelrahman
本文提出了一种考虑微结构的连续混合理论，用于研究压电材料双层周期复合材料中导波的传播。该理论导致简单的控制耦合方程的实际复合材料，保留了完整的传播过程中的每一个组成部分，但允许它们共存下解析推导的相互作用参数。作为分析的结果，在零频率（静态）极限下获得了复合材料的有效混合物性质。近似的准确性证明了直接比较与精确解的谐波在系统中的传播。
A continuum mixture theory with microstructure is developed for guided wave propagation in bilaminated periodic composites of piezoelectric materials. The theory leads to the simple governing coupled equations for the actual composites which retain the integrity of the propagation process in each constituent but allow them to coexist under analytically derived interaction parameters. As a consequence of the analysis, effective mixture properties of the composite are obtained in the zero-frequency (static) limit. The accuracy of the approximation is demonstrated by direct comparison with the exact solution for the propagation of harmonic waves in the system.