A wave near the edge of a circular disk

Michel Destrade (1) , Yibin Fu (2)

1 DALEMBERT - Institut Jean Le Rond d'Alembert
2 Department of Mathematics

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 straight-edged, semi-infinite, thin plate, a wave which it mimics when the curvature radius becomes very large compared to the wavelength.

Domaines: Mécanique des solides [physics.class-ph]; Acoustique [physics.class-ph]; Acoustique [physics.class-ph]; Vibrations [physics.class-ph]

Michel Destrade, Yibin Fu. A wave near the edge of a circular disk. Open Acoustics Journal, 2008, 1, pp.15-18. ⟨10.2174/1874837600801010015⟩. ⟨hal-00341286⟩