Author(s)

R. Betti

Abstract

Substructure deletion method: a boundary element approach for elastodynamic problems R. Betti Department of Civil Engineering and Engineering Mechanics, Columbia University, New York, N.Y. 10027, ABSTRACT A Boundary Element formulation of the Substructure Deletion Method for the dynamic analysis of three-dimensional inclusions of arbitrary shape, subjected to external forces and embedded in a homogeneous viscoelastic half-space, is presented in this study. The analysis relies on the BEM for solving both the problem regarding the finite inclusion and the problem of the flat half-space. Such a method has been tested in the computation of the impedance matrix of square embedded foundations, with different values of the embedment ratio. The results are consistent with those obtained in previous studies. INTRODUCTION Many studies have been clone to investigate the dynamic response of rigid bodies embedded in an infinite half-space subjected to external excita- tions. Particular atte

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