SH-Wave Scattering From the Interface Defect

2017 ◽  
Vol 5 (1) ◽  
pp. 45-50
Author(s):  
Myron Voytko ◽  
◽  
Yaroslav Kulynych ◽  
Dozyslav Kuryliak
Keyword(s):  
Half Space ◽  
Wave Diffraction ◽  
Scattered Field ◽  
Wave Scattering ◽  
Elastic Layer ◽  
Analytical Form ◽  
Structure Parameters ◽  
Sh Wave ◽  
Interface Defect ◽  
Hopf Method

The problem of the elastic SH-wave diffraction from the semi-infinite interface defect in the rigid junction of the elastic layer and the half-space is solved. The defect is modeled by the impedance surface. The solution is obtained by the Wiener- Hopf method. The dependences of the scattered field on the structure parameters are presented in analytical form. Verifica¬tion of the obtained solution is presented.

scholarly journals Modeling of an elastic field scattered by an interface defect

2021 ◽  
pp. 45-51
Author(s):  
Zinoviy Nazarchuk ◽  
Myron Voytko ◽  
Yaroslav Kulynych ◽  
Dozyslav Kuryliak
Keyword(s):  
Numerical Modeling ◽  
Displacement Field ◽  
Elastic Layer ◽  
Elastic Field ◽  
Analytical Form ◽  
Structure Parameters ◽  
Sh Wave ◽  
Reflection And Transmission ◽  
Transmission Coefficients ◽  
Interface Defect

The problem of the shear-wave (SH-wave) diffraction from the semi-infinite interface defect in the rigid junction of the elastic layer and the half-space is solved. The defect is modeled by the impedance surface. The dependences of the scattered displacement field, reflection and transmission coefficients on the structure parameters are presented in analytical form. The examples of numerical modeling of field characteristics are provided.

Analytical solution to the SH wave scattering problem caused by a circular cavity in a half space with inhomogeneous modulus

Meccanica ◽  
2021 ◽  
Vol 56 (3) ◽  
pp. 705-709
Author(s):  
Jinlai Bian ◽  
Zailin Yang ◽  
Guanxixi Jiang ◽  
Yong Yang ◽  
Menghan Sun
Keyword(s):  
Analytical Solution ◽  
Half Space ◽  
Wave Scattering ◽  
Scattering Problem ◽  
Circular Cavity ◽  
Sh Wave

scholarly journals The SH wave scattering of a heterogeneous hill in an elastic half-space

2020 ◽  
Vol 22 (5) ◽  
pp. 1145-1164
Author(s):  
Wang Dai ◽  
Zhang Hai ◽  
Wu Di ◽  
He Ying
Keyword(s):  
Half Space ◽  
Wave Scattering ◽  
Elastic Half Space ◽  
Sh Wave

The role of soil anisotropy on SH wave scattering by a lined circular elastic tunnel in an elastic half-space soil medium

2019 ◽  
Vol 125 ◽  
pp. 105721 ◽  
Author(s):  
Zailin Yang ◽  
Guanxixi Jiang ◽  
Cheng Sun ◽  
Tongsuo Tang ◽  
Yong Yang
Keyword(s):  
Half Space ◽  
Wave Scattering ◽  
Elastic Half Space ◽  
Sh Wave ◽  
Soil Medium

The Scattering of SH-Wave Caused by Subsurface Circular Cavities in a Layered Half-Space

2011 ◽  
Vol 488-489 ◽  
pp. 226-229
Author(s):  
Dong Ni Chen ◽  
Hui Qi ◽  
Yong Shi
Keyword(s):  
Half Space ◽  
Elastic Layer ◽  
Complex Function ◽  
Expansion Method ◽  
Elastic Half Space ◽  
Wave Functions ◽  
Large Radius ◽  
Algebraic Equations ◽  
Sh Wave ◽  
Linear Algebraic Equations

The scattering of SH-wave caused by the subsurface circular cavities in an elastic half-space covered with an elastic layer was discussed, which was based on the complex function method ,wave functions expansion method and big circular arc postulation method in which the circular boundary of large radius was used to approximate straight boundary of surface elastic layer. By the theory of Helmholtz, the general solution of the Biot’s wave function was achieved. Utilizing the complex series expansion technology and the boundary conditions, we could transform the present problem into the problem in which we needed to solve the infinite linear algebraic equations with unknown coefficients in wave functions. Finally, the dynamic stress concentration factors around the circular cavities were discussed in numerical examples.

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