A wave near the edge of a circular disk
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DESTRADE, M., FU, Y. (2008) 'A wave near the edge of a circular disk'. Open Acoustics Journal, 1 :15-18.
It is shown that in the Love-Kirchhoff plate theory, an edge wave can travel in a circular thin disk made of an isotropic 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 the wavelength.