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Scattering of SH Wave by a Semi-Circle Inclusion Embedded in Bi-Material Half Space Surface

Published online by Cambridge University Press:  03 April 2020

Paeksan Jang Open the ORCID record for Paeksan Jang [Opens in a new window] ,
Yongguk Ri ,
Songchol Ri ,
Cholho Pang  and
Changson Ok
Paeksan Jang*
Affiliation:
Institute of nano-physical engineering, Kim Chaek University of Technology, Pyongyang, D.P.R. Korea
Yongguk Ri
Affiliation:
Department of physics science, Kim Chaek University of Technology, Pyongyang, D.P.R. Korea
Songchol Ri
Affiliation:
Department of mechanical science, Kim Chaek University of Technology, Pyongyang, D.P.R. Korea
Cholho Pang
Affiliation:
Department of material engineering, Kim Chaek University of Technology, Pyongyang, D.P.R. Korea
Changson Ok
Affiliation:
School of energy science, Kim Il Sung University, Pyongyang, D.P.R. Korea
*
*Corresponding author ([email protected])
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Abstract

Investigation of SH wave scattering by inclusions in bi-material half space is an important issue in engineering. The purpose of this work is to study the dynamic response of a semi-circle inclusion embedded in bi-material half space surface by SH wave. Graf's addition theorem, Green function method and region-matching technique are used to determine the displacement fields in the bi-material half space and the inclusion. The distributions of dynamic stress concentration factor (DSCF) around the semi-circle inclusion are depicted graphically considering different material parameters. The results show that the frequency and the incidence angle of SH wave, the rigidities of the inclusion and bi-material half space, and the distance from the inclusion to the interface have a great effect on the distribution of DSCF around the inclusion.

Keywords

Green functionImage methodRegion matchingSH waveDSCF
Type
Research Article
Information
Journal of Mechanics , Volume 36 , Issue 4 , August 2020 , pp. 497 - 506
Copyright
Copyright © 2020 The Society of Theoretical and Applied Mechanics

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References

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