Comments on ‘The Reissner-Sagoci problem for a transversely isotropic half-space’ by A. K. Ghorbani-Tanha and M. Eskandari-Ghadi, International Journal for Numerical and Analytical Methods in Geomechanics 2006; 30 (11):1063-1074

Abstract

The writers of this paper chose to revisit the classical problem of torsional oscillations of a rigid, circular footing welded to an elastic half-space, and provided an extension to a medium with transverse isotropy, but then again restricted it to purely static loads. As it turns out, not only is this limitation unnecessary, but the complete derivation can be fully reduced into the same form of the classical problem. Thus, a dynamic solution to the transverse isotropy problem follows directly from that of the isotropic problem. It suffices for this purpose to scale appropriately the spatial coordinates.