The interfacial waves launched by an explosive line-source in a submerged elastic half-space

The propagation of waves of small amplitude at the interface between an elastic half-space and a fluid half-space is investigated. The effects of an explosive line-source embedded in the elastic medium are studied, consideration being given to both dilatational and distortional cases, and a similar investigation is made for a compressive line-source in the fluid. The exact solutions for the displacement field are obtained. It is shown that for fluids of relatively low density, the interfacial waves are of two kinds. The relative efficiencies of the three sources for the launching of these waves are shown explicitly.