Author(s)

D.A. Sotiropoulos

Abstract

Interfacial wave propagation along the common plane boundary of a pre- stressed compressible elastic solid and a pre-stressed inviscid compressible fluid is examined. The underlying strains in the two media are homogeneous and finite with their principal axes aligned, one axis being perpendicular to the common boundary. The secular equation which governs the interfacial speed is obtained in explicit form for arbitrary material and pre-stress parameters, conditions on which are derived for the existence of interfacial waves. It is found that when the underlying deformation is in-plane equibiaxial there exists an interfacial wave as does in the classical case of linear elastic media. The effect of pre-stress is also illustrated numerically for a Varga-like compressible material in contact with a stress-fr

Keywords