Discontinuity waves in a viscoelastic solid saturated with an inviscid fluid

In this paper we linearize the system of Szefer describing the mechanics of a viscoelastic isotropic solid saturated with an inviscid incompressible fluid and we study by means of the singular-surface theory the propagation of discontinuity waves of any order through the continuum characterized by the linear equations. Under suitable hypotheses (conditions (7)), we obtain the normal speeds of propagation of the wave front and the evolution law along the corresponding normal trajectories for transverse and longitudinal propagation. © 1984 Società Italiana di Fisica.