Abstract

In 1968-69 Bleustein and Gulyaev discovered a new type of piezoelectric surface waves, for any material in class $C_{6\nu }(6mm),$ having no counterpart in a purely elastic homogeneous material of the same elastic symmetry as the piezoelectric material. This discovery generated an extensive literature on the subject, with extensions to piezoelectromagnetism too. Here we study generalizations of this type of surface waves in the presence of thermal fields for thermo-piezoelectric materials with hexagonal symmetry. The exact solutions are written for a class of stationary waves varying harmonically with time, which couple both modes of propagation.

摘要

1968-69 年，Bleustein 和 Gulyaev 发现了一种新型压电表面波，适用于任何材料 $C_{6\nu }(6米米),$在与压电材料具有相同弹性对称性的纯弹性均质材料中没有对应物。这一发现产生了大量关于该主题的文献，也扩展到了压电电磁学。在这里，我们研究了在六边形对称热压电材料存在热场的情况下这种类型的表面波的推广。精确解是为一类随时间谐波变化的驻波编写的，它耦合了两种传播模式。