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The effect of boundaries on wave propagation in a liquid-filled porous solid: IX. Love waves in a porous internal stratum

DEPARTMENT OF MECHANICAL ENGINEERING COLUMBIA UNIVERSITY, NEW YORK, N. Y.

Abstract

The dispersion equation in the second approximation for small porosity is deduced for the problem of transverse waves in a porous layer separating two impermeable elastic half-spaces, and the expression for the dissipation per cycle displayed. It is shown that Love waves can be propagated in a porous layer only with phase velocities smaller than that of body shear waves in either of the half-spaces, whereas in an impermeable layer Love waves may exist having phase velocity equal to that of body shear waves in one of the half-spaces.

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