Coupled time-domain analysis with boundary and finite elements |
| |
| Authors: | Thomas Rüberg Martin Schanz |
| |
| Institution: | 1. Institute for Structural Analysis, Graz University of Technology, Lessingstr. 25, A-8010 Graz, Austria;2. Institute for Applied Mechanics, Graz University of Technology, Technikergasse 4, A-8010 Graz, Austria |
| |
| Abstract: | A methodology for the combination of boundary and finite element discretizations for the numerical analysis of time-dependent problems is presented. The interface conditions arising from the partitioning of the problem are incorporated in a weak form by means of Lagrange multiplier fields and, therefore, allow for nonconform interface discretizations. The resulting system matrices have the same saddle point structure as in the FETI method. Possible applications of the proposed method are the dynamic analysis of soil-structure interaction and similar wave propagation phenomena in unbounded media. (© 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) |
| |
| Keywords: | |
|
|
