Dokument-ID Dokumenttyp Autoren/innen Persönliche Herausgeber/innen Haupttitel Abstract Auflage Verlagsort Verlag Herausgeber (Institution) Erscheinungsjahr Titel des übergeordneten Werkes Jahrgang/Band ISBN Veranstaltung Veranstaltungsort Beginndatum der Veranstaltung Enddatum der Veranstaltung Ausgabe/Heft Erste Seite Letzte Seite URN DOI Lizenz Datum der Freischaltung OPUS4-2358 Beitrag zu einem Sammelband Rücker, Werner; Auersch, Lutz; Baeßler, Matthias; Knothe, K.; Wu, Y.; Gerstberger, Ulf; Popp, K.; Kruse, H.; Savidis, S. Popp, K.; Schiehlen, W. O. A comparative study of results from numerical track-subsoil calculations Berlin Springer 2003 System dynamics and long-term behaviour of railway vehicles, track and subgrade 3-540-43892-0 Colloquium 2002 Stuttgart, Germany 2002-03-13 2002-03-15 6 471 488 2016-02-19 OPUS4-13736 Beitrag zu einem Sammelband Rücker, Werner; Krüger, F.; Savidis, S.; Auersch, Lutz Aubram, D. Ein umfassendes Prognoseprogramm für Erschütterungen Berlin TU Berlin Institut für Grundbau und Baubetrieb 2006 Vorträge zum 2. Hans Lorenz Symposium 3-7983-2024-1 2. Hans Lorenz Symposium Berlin, Deutschland 2006-10-12 40 159 170 2016-02-19 OPUS4-54969 Zeitschriftenartikel Savidis, S.; Bergmann, M.; Schepers, Winfried; Fontara, I.-K. Wave propagation in inhomogeneous media via FE/PML method The Perfectly Matched Layer (PML) method is an efficient approach to imposing radiation conditions at the bounded region of interest in case of wave propagation in unbounded domains. This paper presents and validates 3D FE/PML numerical schemes based on two different PML formulations for homogeneous and inhomogeneous geological media exhibiting discrete or continuous inhomogeneity. In the equation of motion for the PML domain the applied stretching behavior is expressed either as complex material properties or as complex coordinates. Both PML formulations are implemented in the FEM and verified against analytical solutions. Three different types of material inhomogeneity are considered: layered half-space, continuously inhomogeneous half-space with linear velocity profile and continuously inhomogeneous half-space with nonlinear velocity profile. Sensitivity analyses are conducted, and the performance of the developed numerical schemes is investigated taking into account a broad variation of the PML parameters. Recommendations are given for the optimal values of the PML parameters for the case of homogeneous and inhomogeneous geological media. Berlin Ernst & Sohn 2022 Geotechnik 45 2 98 107 10.1002/gete.202100028 2022-06-09