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2 International Journal of Applied Mechanics and Engineering

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Reflection of P-wave and SV-wave in a generalized two temperature thermoelastic half-space

Santra S., Lahiri A., Das N. C.

International Journal of Applied Mechanics and Engineering

2014

Vol. 19, no. 4

735--754

In this work the theory of two temperature generalized thermoelasticity has been used to investigate the problem of reflection of P-wave and SV-wave in a half space when the surface is i) thermally insulated or ii) isothermal. The ratios of the reflection coefficient to that of the incident coefficient for different cases are obtained for P-wave and SV-waves. The results for various cases for the conductive and dynamical temperature have been compared. The results arrived at in the absence of the thermal field (elastic case) have also been compared with those in the existing literature. Finally, the results for various cases have been analyzed and depicted in graphs.

On the wave propagation in generalised thermoelastic media

Sharma J. N., Sharma P. K., Gupta S. K.

International Journal of Applied Mechanics and Engineering

2003

Vol. 8, no 2

299-316

In this paper, the analysis is based on the decoupled field equations of linear thermoelasticity without energy dissipation. These equations have been solved with the use of integral transforms. The dynamic behavior of an elastic half space due to (i) a line load and (ii) a mechanical load, acting on the boundary is also discussed. While the displacement in both of the cases is found to be continuous, the temperature, strain and stress are observed to be discontinuous at elastic and thermal wave fronts. The characteristic features of the underlying theory are analyzed in the light of these solutions and their counterparts in earlier works. The results obtained theoretically have been computed numerically and are represented graphically.