On long-wave limiting velocities of guided waves in anisotropic plates

The constructed closed form solutions for the long-wave limits for guided waves propagating in anisotropic crystals reveal a principal ability for existence of several long-wave limiting velocities exhibiting dependence on the wave normal. Numerical examples for guided waves propagating on the (1,0,0)-plane of several cubic crystals indicate existence of two distinct long-wave limiting velocities for all directions of the wave normal, except a possible discrete number of directions where two long-wave limiting velocities may coincide.

Automated summary

The closed form solutions for guided waves propagating in anisotropic crystals reveal the existence of multiple long-wave limiting velocities, which depend on the wave normal. Numerical examples on the (1,0,0)-plane of cubic crystals show that, for most directions of the wave normal, there are two distinct long-wave limiting velocities, with the possibility of a few directions where two velocities may coincide.