Rayleigh waves in thermo elastic medium with double porosity

The present paper deals with the propagation of Rayleigh waves in isotropic homogeneous thermoelastic half–space with double porosity whose surface is subjected to stress–free, thermally insulated/isothermal boundary conditions. The compact secular equations for thermoelastic solid half–space with voids are deduced as special cases from the present analysis. In order to illustrate the analytical developments, the secular equations have been solved numerically. The computer simulated results for copper materials in respect of determinant of Rayleigh wave secular equation, Rayleigh wave velocity and attenuation coefficient have been presented graphically for different values of phase velocity.