Abstract

Manifesting the piezoelectric and nonlocal effects on the propagation of surface waves in nanoscale smart structures can provide some new insights for the designs and applications of the nanoscale wave devices. Taking the nanoscale size effect into consideration based on the nonlocal theory, the propagation of Bleustein–Gulyaev (BG) wave in a nonlocal piezoelectric (PE) layer overlying a nonlocal piezoelectric (PE) half-space, is investigated. The dispersion relations and particular cases are derived for the open and short circuit conditions. The results show that wave propagation is highly affected by nanoscale size effects due to the nonlocality present in the media.

摘要

在纳米级智能结构中表现出对表面波传播的压电效应和非局部效应可以为纳米级波器件的设计和应用提供一些新见解。考虑到基于非局部理论的纳米尺度效应，研究了Bleustein–Gulyaev（BG）波在覆盖非局部压电（PE）半空间的非局部压电（PE）层中的传播。对于开路和短路条件，得出色散关系和特殊情况。结果表明，由于介质中存在非局部性，纳米尺度效应极大地影响了波的传播。