Prediction of the Initial Fatigue Crack Location of Automatically Welded Tubular Joints for Jacket Support Structures
- To increase the competitiveness of jacket substructures compared to monopiles a changeover from an individual towards a serial jacket production based on automated manufactured tubular joints com-bined with standardized pipes has to be achieved. Therefore, this paper addresses fatigue tests of automatical-ly welded tubular X-joints focusing on the location of the technical fatigue crack. For this X-joint, the detect-ed location of the technical crack is then compared to numerical investigations predicting the most fatigue prone notch considering the structural stress approach as well as the notch stress approach. Additionally, the fatigue prone hot spot according to both approaches is compared for a typical offshore jacket double-K-joint to emphasize the significance of the presented outcomes for the existing offshore structures. Besides, the welding process of the automated manufactured tubular X-joints is presented.
Autor*innen: | K. Schürmann |
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Koautor*innen: | Andreas PittnerORCiD, P. Schaumann, Michael RethmeierORCiD |
Dokumenttyp: | Vortrag |
Veröffentlichungsform: | Präsentation |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2019 |
Organisationseinheit der BAM: | 9 Komponentensicherheit |
9 Komponentensicherheit / 9.3 Schweißtechnische Fertigungsverfahren | |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Angewandte Physik |
Freie Schlagwörter: | Arc welding automation; Fatigue tests; Local fatigue approaches; Technical crack detection; Tubular X-joints |
Themenfelder/Aktivitätsfelder der BAM: | Energie |
Veranstaltung: | 7th International Conference on Structural Engineering, Mechanics and Computation (SEMC) |
Veranstaltungsort: | Cape Town, SOUTH AFRICA |
Beginndatum der Veranstaltung: | 02.09.2019 |
Enddatum der Veranstaltung: | 04.09.2019 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 28.12.2020 |
Referierte Publikation: | Nein |
Eingeladener Vortrag: | Nein |