Acoustic waves in an elastic channel near the free surface of granular media

A theoretical description of a natural acoustical waveguide existing in unconsolidated granular materials due to a gravity-induced stiffness gradient is proposed. The analytical theory for the acoustic modes propagating in the medium with a power-law type inhomogeneity uses some original solutions o...

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Veröffentlicht in:	Physical review letters 2006-06, Vol.96 (21), p.214301-214301, Article 214301
Hauptverfasser:	Gusev, V E, Aleshin, V, Tournat, V
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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