Proceedings of the Mizoram Science Congress 2018 (MSC 2018) - Perspective and Trends in the Development of Science Education and Research

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Effects of frequency parameter due to elastic wave in monoclinic elastic medium

Authors
J. Lalvohbika
Corresponding Author
J. Lalvohbika
Available Online December 2018.
DOI
10.2991/msc-18.2018.23How to use a DOI?
Keywords
qSV and qP-waves, monoclinic medium, reflection and transmission coefficients, corrugated interface, phase velocity
Abstract

The propagation of elastic waves has many applications especially in geophysics and engineering. They are used in the detection of notches and faults in different types of materials such as in railway tracks, buried landmines, seismic activities, and exploration of valuable materials such as minerals, crystals, natural gas, etc. When the seismic signal passes through different discontinuities inside the earth, the phenomena of reflection and transmission takes place. In this paper, the phenomenon of reflection and transmission of elastic waves due to incident qSV-wave at a corrugated interface between two different monoclinic elastic half-spaces are discussed. There exist an irregularly reflected and transmitted waves due to undulated nature of the interface, besides the regularly reflected and transmitted ones. Using Rayleigh's method of approximation, the expressions for the reflection and transmission coefficients of the regular and irregular waves are obtained. It is observed that these coefficients are functions of angle of incidence and elastic constants and they are greatly influenced by the frequency and corrugation parameter. For a special type of interface, x3 = d cos px2 we have computed these coefficients and discussed the effects of frequency parameter.

Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the Mizoram Science Congress 2018 (MSC 2018) - Perspective and Trends in the Development of Science Education and Research
Series
Advances in Engineering Research
Publication Date
December 2018
ISBN
10.2991/msc-18.2018.23
ISSN
2352-5401
DOI
10.2991/msc-18.2018.23How to use a DOI?
Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

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TY  - CONF
AU  - J. Lalvohbika
PY  - 2018/12
DA  - 2018/12
TI  - Effects of frequency parameter due to elastic wave in monoclinic elastic medium
BT  - Proceedings of the Mizoram Science Congress 2018 (MSC 2018) - Perspective and Trends in the Development of Science Education and Research
PB  - Atlantis Press
SP  - 146
EP  - 154
SN  - 2352-5401
UR  - https://doi.org/10.2991/msc-18.2018.23
DO  - 10.2991/msc-18.2018.23
ID  - Lalvohbika2018/12
ER  -