Scattering theorems of elastic waves for a thermoelastic body

In the present work, the scattering problem of an elastic wave by a penetrable thermoelastic body in an isotropic and homogeneous elastic medium is considered. The corresponding scattering problem is formulated in a suitable compact form, and taking into account the physical parameters of the thermo...

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Bibliographic Details
Published in:Mathematical methods in the applied sciences 2018-02, Vol.41 (3), p.998-1004
Main Authors: Athanasiadou, E., Sevroglou, V., Zoi, S.
Format: Article
Language:English
Subjects:
elastic medium
Elastic scattering
Elastic waves
Incidence
Physical properties
plane and spherical incidence
Reciprocity
scattering theorems
Spherical waves
Theorems
thermoelastic body
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Summary:In the present work, the scattering problem of an elastic wave by a penetrable thermoelastic body in an isotropic and homogeneous elastic medium is considered. The corresponding scattering problem is formulated in a suitable compact form, and taking into account the physical parameters of the thermoelastic body and integral representations for the total exterior elastic and the total interior thermoelastic field are presented. Using asymptotic analysis of the fundamental solution of the Navier equation, expressions of the far‐field patterns are obtained, and reciprocity theorems for plane and spherical wave incidence are established. Finally, a general scattering theorem for plane wave incidence is also presented. Copyright © 2016 John Wiley & Sons, Ltd.
ISSN:0170-4214
1099-1476
DOI:10.1002/mma.4051