Shear wave propagation in viscoelastic heterogeneous layers lying over an initially stressed half-space

被引:14
|
作者
Chatterjee, M. [1 ]
Chattopadhyay, A. [1 ]
Dhua, S. [1 ]
机构
[1] Indian Sch Mines, Indian Inst Technol, Dept Appl Math, Dhanbad 826004, Jharkhand, India
关键词
Shear waves; heterogeneity; viscoelastic medium; initial stress; Bessel functions; asymptotic expansions; PLANE-WAVES; TRANSMISSION; REFLECTION; MEDIA; INTERFACE;
D O I
10.1080/15376494.2016.1232456
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The role of the present article is to study the propagation of horizontally polarized shear waves in vertically heterogeneous viscoelastic double layers lying over a homogeneous half-space under initial stress. Both linear and exponential variations have been considered in the inhomogeneity associated to rigidity, internal friction, and density of the media. The dispersion equation of shear waves has been obtained in closed form. The dimensionless phase and damping velocities have been plotted against dimensionless wave number for different values of inhomogeneity parameters separately. Also, surface plots of phase velocity against dimensionless wave number and inhomogeneity parameters have been given.
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页码:1247 / 1256
页数:10
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