Rayleigh waves in air saturated axisymmetrical soft porous media

被引：8
|
作者：
Allard, J. F. [1 ]
Dazel, O. [1 ]
Descheemaeker, J. [2 ]
Geebelen, N. [2 ]
Boeckx, L. [2 ]
Lauriks, W. [2 ]
机构：
[1] Univ Maine, Acoust Lab, UMR 6613, CNRS, F-72000 Le Mans, France
[2] Katholieke Univ Leuven, Lab Akoestiek & Therm Fys, B-3001 Heverlee, Belgium
来源：
JOURNAL OF APPLIED PHYSICS | 2009年 / 106卷 / 01期
关键词：
elasticity; glass; porous materials; Rayleigh waves; wool; PROPAGATION;
D O I：
10.1063/1.3159008
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Bulk waves in axisymmetrical poroelastic layers having a given slowness in a plane perpendicular to the symmetry axis of the medium have been previously studied. The previous works are generalized to any angle between the plane where the slowness is defined and the symmetry axis. This allows a description of the Rayleigh waves created by a line source on free surfaces which are not perpendicular to the symmetry axis. An illustration is provided with measurements on a glass wool of the speed of the Rayleigh wave performed in three perpendicular directions and the evaluation of the rigidity parameters of the fibrous medium.
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页数：8
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