Non-singular time domain BEM with applications to 3D inertial soil–structure interaction

✍ Scribed by Dimitris L. Karabalis

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 381 KB
• Volume: 24
• Category: Article
• ISSN: 0267-7261
• DOI: 10.1016/j.soildyn.2003.10.002

✦ Synopsis

A direct time domain boundary element method is presented based on the Stokes fundamental solutions, discretized in both time and space, and an efficient time step-by-step solution that minimizes the accumulation of errors. A non-singular numerical integration procedure, in the Cauchy sense, is proposed for the generation of the associated influence matrices. This methodology is shown to be efficient for the solution of a number of computationally intensive problems in the area of soil -structure interaction. In addition, an algorithm for the direct calculation of the response of massive foundations to externally applied forces and/or obliquely incident seismic waves is introduced. The accuracy and computational efficiency of the proposed methodologies is established through a number of comparison studies.