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Propagating, damped, and leaky surface waves on the corrugated traction-free boundary of an elastic half-space

Anders Boström (Institutionen för tillämpad mekanik, Dynamik)
Journal of the Acoustical Society of America (0001-4966). Vol. 85 (1989), p. 1549-1555.
[Artikel, refereegranskad vetenskaplig]

The dispersion relation for surface waves on the corrugated boundary (periodic in one direction and constant in the other) of an elastic half-space is derived using a modal approach, and the result is shown to be equivalent to that derived by the null-field approach. The dispersion relation is solved numerically for roots on all Riemann sheets for varying corrugation heights, frequencies, and angles of propagation. Many of the roots move on several sheets, and this leads to zero, one, or two roots residing on the physical sheets.

Nyckelord: elastic waves, half-space, corrugations, surface wave



Denna post skapades 2013-12-28. Senast ändrad 2015-03-30.
CPL Pubid: 190605

 

Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Dynamik (1900-2017)

Ämnesområden

Teknisk mekanik

Chalmers infrastruktur