scholarly journals Torsional Wave Propagation in an Initially Stressed Anisotropic Heterogeneous Crustal Layer Lying Over a Viscoelastic Half-space

2017 ◽  
Vol 173 ◽  
pp. 980-987 ◽  
Author(s):  
Santimoy Kundu ◽  
Alka Kumari
Keyword(s):  
Wave Propagation ◽  
Half Space ◽  
Torsional Wave ◽  
Crustal Layer

Torsional wave propagation in an inhomogeneous crustal layer over an inhomogeneous elastic half space

2015 ◽  
Vol 24 (1-2) ◽  
pp. 47-52
Author(s):  
Rajneesh Kakar ◽  
Kishan Chand Gupta
Keyword(s):  
Wave Propagation ◽  
Dispersion Relation ◽  
Half Space ◽  
General Equation ◽  
Elastic Half Space ◽  
Boundary Plane ◽  
Torsional Wave ◽  
Crustal Layer ◽  
Inhomogeneity Parameter ◽  
Upper Boundary

AbstractThe present study considers the propagation of torsional wave in an inhomogeneous crustal layer over an inhomogeneous half space when the upper boundary plane is assumed to be rigid. The inhomogeneity in density and rigidity in the crustal layer varies linearly with depth, whereas for the elastic half space, the inhomogeneity in density and rigidity is hyperbolic. The dispersion relation for propagation of such waves is derived by using Whittaker’s function. When the upper boundary plane is assumed to be free and in the absence of inhomogeneity of the crustal layer and lower half space, our derived equation is in agreement with the general equation for Love waves. Numerically, it is observed that the velocity of torsional wave changes remarkably with the presence of inhomogeneity parameter of the layer.

Torsional Wave Propagation in a Substratum over a Dry Sandy Gibson Half-Space

2014 ◽  
Vol 14 (3) ◽  
pp. 06014002 ◽  
Author(s):  
Sumit Kumar Vishwakarma ◽  
Shishir Gupta ◽  
Samapti Kundu
Keyword(s):  
Wave Propagation ◽  
Half Space ◽  
Torsional Wave

Torsional wave propagation in Earth’s crustal layer under the influence of imperfect interface

2012 ◽  
Vol 20 (3) ◽  
pp. 355-369 ◽  
Author(s):  
Sumit Kumar Vishwakarma ◽  
Shishir Gupta ◽  
Arun Kumar Verma
Keyword(s):  
Wave Propagation ◽  
Imperfect Interface ◽  
Torsional Wave ◽  
Crustal Layer

On a technique for deriving explicit transfer matrices of orthotropic layers

2015 ◽  
Vol 37 (4) ◽  
pp. 303-315 ◽  
Author(s):  
Pham Chi Vinh ◽  
Nguyen Thi Khanh Linh ◽  
Vu Thi Ngoc Anh
Keyword(s):  
Wave Propagation ◽  
Explicit Form ◽  
Half Space ◽  
Transfer Matrix ◽  
Rayleigh Waves ◽  
Secular Equation ◽  
Transfer Matrices ◽  
Orthotropic Layer ◽  
Wave Propagation Problem ◽  
Arbitrary Thickness

This paper presents  a technique by which the transfer matrix in explicit form of an orthotropic layer can be easily obtained. This transfer matrix is applicable for both the wave propagation problem and the reflection/transmission problem. The obtained transfer matrix is then employed to derive the explicit secular equation of Rayleigh waves propagating in an orthotropic half-space coated by an orthotropic layer of arbitrary thickness.

scholarly journals Modelling of torsional wave propagation in a two-layer anisotropic inhomogeneous media

2021 ◽  
Vol 1849 (1) ◽  
pp. 012013
Author(s):  
Tapas Ranjan Panigrahi ◽  
Sumit Kumar Vishwakarma ◽  
Dinesh Kumar Majhi
Keyword(s):  
Wave Propagation ◽  
Inhomogeneous Media ◽  
Torsional Wave
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