... and the considered tri-mediums are transversely isotropic, porous, and heterogeneous respectively under the impression of initial stress. Design/methodology/approach Heterogeneities are associated with density and rigidity in the intermediate layer and considered heterogeneities are of the trigonometric form...

...Shishir Gupta; Soumik Das; Rachaita Dutta Purpose The purpose of this paper is to investigate the mathematical model comprising a heterogeneous fluid-saturated fissured porous layer overlying a non-homogeneous anisotropic fluid-saturated porous half-space without fissures. The influence of point...

.../methodology/approach The considered geometry of this problem involves a micropolar Voigt-type viscoelastic stratum imperfectly bonded to a heterogeneous Voigt-type viscoelastic substratum. With the aid of governing equations of motion of each individual medium and method of separation of variable...