%0 Journal Article
%@ 0363-9061
%A Alarcón Álvarez, Enrique
%A Cano, J.J.
%A Dominguez Abascal, José
%D 1989
%F upm:15764
%I Wiley
%J International Journal for Numerical and Analytical Methods in Geomechanics
%N 6
%P 645-664
%T Boundary element approach to the dynamic stiffness functions of circular foundations
%U https://oa.upm.es/15764/
%V 13
%X A boundary element approach for time harmonic axisymmetric problems using the complete space point load fundamental solution is presented. The fundamental solution is integrated numerically along the azimuthal co-ordinate of each axisymmetric element. To increase the accuracy of the numerical integration a simple co-ordinate transformation is proposed. The approach is applied to the computation of the dynamic stiffness functions of rigid circular foundations on layered viscoelastic soils. Three different sites are considered: a uniform half-space, a soil layer on a half-space, and a soil consisting of four horizontal layers and a compliant half-space. The numerical results obtained by the proposed approach for surface circular foundations are very close to corresponding published results obtained by different procedures.