%0 Journal Article %T Inhomogeneous deformations and motions of elastic materials %A K. R. Rajagopal %J Le Matematiche %D 1991 %I University of Catania %X Unsteady motions are discussed within the context of the linearized theory of elasticity, the neo-Hookean theory of elasticity and the theory of interacting continua. In the last case, we discuss unsteady motions in an isotropic solid infused with a fluid, and a transversely isotropic solid infused with a fluid. We are able to show that the theory reduces to one that has a structure similar to that introduced by Biot. %U http://www.dmi.unict.it/ojs/index.php/lematematiche/article/view/627