A fundamental solution due to a periodic point force in the interior of an elastic half‐space

Abstract

Abstract The fundamental solution for a periodic point force in the interior of a three‐dimensional, homogeneous, isotropic, elastic half‐space is derived. The method of synthesis and superposition is employed to obtain the solution in the Laplace transform as well as the frequency domain. These correspond to the dynamic equivalent of Mindlin's static half‐space point force solutions. It is reduced, for certain limiting conditions, to the dynamic equivalent of Boussinesq's and Cerruti's problems of a normal and tangential periodic point force respectively, on the boundary of a half‐space. Also, static solutions of Mindlin, Boussinesq and Cerruti are recovered for small frequency parameters. Finally, results are presented and compared with other available solutions.