Formulas for the speed and slowness of Stoneley waves in bonded isotropic elastic half-spaces with the same bulk wave velocities

This paper is concerned with the propagation of Stoneley waves in two bonded isotropic elastic half-spaces with the same bulk wave velocities. Our main purpose is to find formulas for the wave velocity and the wave slowness. By applying the complex function method, the exact formulas for the wave velocity and the wave slowness have been derived. The derivation of these formulas also shows that there always exists a unique Stoneley wave for the case under consideration.