Dokument-ID Dokumenttyp Verfasser/Autoren Herausgeber Haupttitel Abstract Auflage Verlagsort Verlag Erscheinungsjahr Seitenzahl Schriftenreihe Titel Schriftenreihe Bandzahl ISBN Quelle der Hochschulschrift Konferenzname Quelle:Titel Quelle:Jahrgang Quelle:Heftnummer Quelle:Erste Seite Quelle:Letzte Seite URN DOI Abteilungen OPUS4-3405 Wissenschaftlicher Artikel Nasser, Mourad; Schwedler, Michael; Wuttke, Frank; Könke, Carsten Seismic analysis of structural response using simplified soil-structure interaction models Seismic analysis of structural response using simplified soil-structure interaction models Bauingenieur, D-A-CH-Mitteilungsblatt Institut für Strukturmechanik (ISM) OPUS4-3596 Wissenschaftlicher Artikel Alalade, Muyiwa; Nguyen-Tuan, Long; Wuttke, Frank; Lahmer, Tom Damage identification in gravity dams using dynamic coupled hydro-mechanical XFEM Damage identification in gravity dams using dynamic coupled hydro-mechanical XFEM. 18 International Journal of Mechanics and Materials in Design 1 19 10.25643/bauhaus-universitaet.3596 Professur Stochastik und Optimierung OPUS4-4839 Wissenschaftlicher Artikel Alalade, Muyiwa; Reichert, Ina; Köhn, Daniel; Wuttke, Frank; Lahmer, Tom Qu, Chunxu; Gao, Chunxu; Zhang, Rui; Jia, Ziguang; Li, Jiaxiang A Cyclic Multi-Stage Implementation of the Full-Waveform Inversion for the Identification of Anomalies in Dams For the safe and efficient operation of dams, frequent monitoring and maintenance are required. These are usually expensive, time consuming, and cumbersome. To alleviate these issues, we propose applying a wave-based scheme for the location and quantification of damages in dams. To obtain high-resolution "interpretable" images of the damaged regions, we drew inspiration from non-linear full-multigrid methods for inverse problems and applied a new cyclic multi-stage full-waveform inversion (FWI) scheme. Our approach is less susceptible to the stability issues faced by the standard FWI scheme when dealing with ill-posed problems. In this paper, we first selected an optimal acquisition setup and then applied synthetic data to demonstrate the capability of our approach in identifying a series of anomalies in dams by a mixture of reflection and transmission tomography. The results had sufficient robustness, showing the prospects of application in the field of non-destructive testing of dams. Basel MDPI 19 Infrastructures 2022 Volume 7, issue 12, article 161 urn:nbn:de:gbv:wim2-20221201-48396 10.3390/infrastructures7120161 Institut für Strukturmechanik (ISM)