Propagation of shear waves in viscoelastic heterogeneous layer overlying an initially stressed half space

The present paper is concerned with the propagation of shear waves in an isotropic, viscoelastic, heterogeneous layer lying over a homogeneous half space under initial stress. For the layer the inhomogeneity associated to rigidity, internal friction and density is assumed to be linear function of de...

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Bibliographic Details
Published in:Journal of physics. Conference series 2015-12, Vol.662 (1), p.12001
Main Authors: Chatterjee, Mita, Dhua, Sudarshan, Chattopadhyay, Amares
Format: Article
Language:English
Subjects:
Damping
Dimensionless numbers
Dispersion curve analysis
Inhomogeneity
Initial stresses
Internal friction
Linear functions
Phase velocity
Physics
Shear
Stress propagation
Viscoelasticity
Wave propagation
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Summary:The present paper is concerned with the propagation of shear waves in an isotropic, viscoelastic, heterogeneous layer lying over a homogeneous half space under initial stress. For the layer the inhomogeneity associated to rigidity, internal friction and density is assumed to be linear function of depth. The dispersion equation of shear waves has been obtained in closed form. The dimensionless phase velocity and damping velocity have been plotted against dimensionless wave number for different values of inhomogeneity parameter and initial stress. The effects of inhomogeneity and initial stress have been shown in the dispersion curves.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/662/1/012001