Surface wave modes on elastic cylinders.

Autor: Frisk, G. V., Dickey, J. W., Überall, H.
Zdroj: Journal of the Acoustical Society of America; 1975, Vol. 58 Issue 5, p996-1008, 13p
Abstrakt: Various surface wave modes may exist on solid elastic cylinders imbedded in a fluid. They fall into two classes, having velocities close to either the wave speed in the fluid (Stoneley- and Franz-type modes), or to the bulk wave speeds in the solid (Rayleigh- and Whispering Gallery-type modes). Using analytic and numerical methods, we present here a discussion of the modes of the first class, as well as of the Rayleigh mode. In the limit of infinite cylinder radius, the wavenumbers of the Rayleigh and Stoneley modes tend towards those of the Rayleigh and Stoneley waves on a flat elastic half-space, while the Franz-mode wavenumbers tend towards the wavenumber of sound in the ambient fluid. The sheet structure of the elastic surface waves is discussed in an appendix. Subject Classification: 35.54; 40.26;30.50;20.35. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index