Dispersion relations for SH-wave propagation in periodic piezoelectric composite layered structures

Dispersion relations for SH-wave propagation in periodic piezoelectric composite layered structures
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周期性压电复合层状结构中 SH 波传播的色散关系

DOI:
10.1016/j.ijengsci.2003.09.010
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发表时间:
2004-04
影响因子:
6.6
通讯作者:
Kishimoto K
Kishimoto K
中科院分区:
工程技术1区
文献类型:
--
作者:
Qian ZH;Jin F;Wang ZK;Kishimoto K

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研究了水平极化剪切波(SH波)在周期性压电-聚合物层状结构中的传播特性。压电薄膜与聚合物薄膜交替粘结形成层状结构。分别得到了SH波沿垂直于界面方向和沿着界面方向传播时,SH波在周期层状压电结构中传播的相速度方程。详细讨论了这种结构的滤波效应以及压电层与聚合物层的体积分数和剪切模量比对相速度的影响。对一组压电薄膜-聚合物薄膜多层系统(PZT-5 H压电陶瓷-聚乙烯)进行了数值模拟,揭示了SH波在这种特殊结构中传播的基本特性。
Propagation behavior of horizontally polarized shear waves (SH-waves) in a periodic piezoelectric–polymeric layered structure is taken into account. The layered structures are consisted of piezoelectric thin films bonded perfectly with polymeric thin films alternately. The phase velocity equations of SH-waves propagation in the periodic layered piezoelectric structure are obtained for the cases of wave propagation in the direction normal to the interface and along the interface, respectively. Filter effect of this kind of structure and the effects of volume fraction and shear modulus ratio of piezoelectric layer to polymeric layer on the phase velocity are discussed in detail, respectively. One set of piezoelectric thin film––polymeric thin film multilayer system (PZT-5H piezoelectric ceramics––polythene) is chosen to show the numerical simulation, basic properties of SH-waves propagation in this particular structure are revealed.
DOI: 10.1016/s0020-7683(00)00009-3
发表时间: 2001-01-01
影响因子: 3.6
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