超声在流体和一般各向异性固体界面上的反射

Reflection of ultrasonic waves at the interface between fluid and generally anisotropic solid

考虑到由流体斜入射到各向异性固体时超声波模式转换的一般情况 ,给出了超声在流体和各向异性固体任意取向界面上反射和折射问题的求解方法 ;超声反射和折射系数是媒质弹性参数、界面取向及入射角的函数。给出了超声在流体和不同对称类晶体及纤维增强复合材料界面上反射。

The calculation methods are presented for the reflection and transmission of ultrasonic waves incident from the fluid on to the arbitrary orientation interface of the general anisotropic solid. It is found that the reflection and transmission coefficients depend on, in general, the elastic parameters of the media, orientation of anisotropic solid surface and incident angle. The examples of numerical solution of the energy reflection and transmission coefficient are obtained for some anisotropic crystal and composite materials of different symmetry classes.