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8-MW wind turbine tower computational shell buckling benchmark - Part 1: An international ‘round-robin’ exercise

  • An assessment of the elastic-plastic buckling limit state for multi-strake wind turbine support towers poses a particular challenge for the modern finite element analyst, who must competently navigate numerous modelling choices related to the tug-of-war between meshing and computational cost, the use of solvers that are robust to highly nonlinear behaviour, the potential for multiple near-simultaneously critical failure locations, the complex issue of imperfection sensitivity and finally the interpretation of the data into a safe and economic design. This paper reports on an international ‘round-robin’ exercise conducted in 2022 aiming to take stock of the computational shell buckling expertise around the world which attracted 29 submissions. Participants were asked to perform analyses of increasing complexity on a standardised benchmark of an 8-MW multi-strake steel wind turbine support tower segment, from a linear elastic stress analysis to a linear bifurcation analysis to aAn assessment of the elastic-plastic buckling limit state for multi-strake wind turbine support towers poses a particular challenge for the modern finite element analyst, who must competently navigate numerous modelling choices related to the tug-of-war between meshing and computational cost, the use of solvers that are robust to highly nonlinear behaviour, the potential for multiple near-simultaneously critical failure locations, the complex issue of imperfection sensitivity and finally the interpretation of the data into a safe and economic design. This paper reports on an international ‘round-robin’ exercise conducted in 2022 aiming to take stock of the computational shell buckling expertise around the world which attracted 29 submissions. Participants were asked to perform analyses of increasing complexity on a standardised benchmark of an 8-MW multi-strake steel wind turbine support tower segment, from a linear elastic stress analysis to a linear bifurcation analysis to a geometrically and materially nonlinear buckling analysis with imperfections. The results are a showcase of the significant shell buckling expertise now available in both industry and academia. This paper is the first of a pair. The second paper presents a detailed reference solution to the benchmark, including an illustration of the Eurocode-compliant calibration of two important imperfection forms.zeige mehrzeige weniger

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Autor*innen:A. Sadowski, M. Seidel, H. Al-Lawati, E. Azizi, Hagen BalscheitORCiD, M. Böhm, Lei Chen, I. van Dijk, C. Doerich-Stavridis, O. Kunle Fajuyitan, A. Filippidis, A. Winther Fischer, C. Fischer, S. Gerasimidis, H. Karampour, L. Kathirkamanathan, S. Subramanian, Cem Topkaya, H. N. R. Wagner, J. Wang, J. Wang, K. Kumar Yadav, X. Yun, P. Zhang
Dokumenttyp:Zeitschriftenartikel
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Engineering failure analysis
Jahr der Erstveröffentlichung:2023
Organisationseinheit der BAM:7 Bauwerkssicherheit
7 Bauwerkssicherheit / 7.2 Ingenieurbau
Verlag:Elsevier Science
Verlagsort:Oxford
Jahrgang/Band:148
Aufsatznummer:107124
Erste Seite:1
Letzte Seite:23
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Angewandte Physik
Freie Schlagwörter:Benchmark; Computational; Shell buckling; Wind turbine tower
Themenfelder/Aktivitätsfelder der BAM:Energie
DOI:10.1016/j.engfailanal.2023.107124
ISSN:1350-6307
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:20.02.2023
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:19.06.2023
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