A Wave Near the Edge of a Circular Disk

摘要

It is shown that in the Love-Kirchhoff plate theory, an edge wave can travel in a circular thin disk made of anisotropic elastic material. This disk edge wave turns out to be faster than the classic flexural acoustic wave in a straightedged,semi-infinite, thin plate, a wave which it mimics when the curvature radius becomes very large compared to thewavelength.