4.5 Article

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

期刊

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
卷 29, 期 27, 页码 6854-6859

出版社

TAYLOR & FRANCIS INC
DOI: 10.1080/15376494.2021.1986610

关键词

Guided wave; Lamb wave; dispersion; anisotropy; limiting velocity

资金

  1. Russian Foundation for Basic Research [20-08-00419]

向作者/读者索取更多资源

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.
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.

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