Details
| Original language | English |
|---|---|
| Article number | 107124 |
| Journal | Engineering failure analysis |
| Volume | 148 |
| Early online date | 20 Feb 2023 |
| Publication status | Published - Jun 2023 |
Abstract
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 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.
Keywords
- Buckling, EN 1993-1-6, Finite element analysis, GMNIA, LBA-MNA, Plastic collapse, Reference Resistance Design, Round-robin, Wind turbine support tower
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Engineering(all)
- General Engineering
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In: Engineering failure analysis, Vol. 148, 107124, 06.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - 8-MW wind turbine tower computational shell buckling benchmark. Part 1
T2 - An international ‘round-robin’ exercise
AU - Sadowski, Adam J.
AU - Seidel, Marc
AU - Al-Lawati, Hussain
AU - Azizi, Esmaeil
AU - Balscheit, Hagen
AU - Böhm, Manuela
AU - Chen, Lei
AU - van Dijk, Ingmar
AU - Doerich-Stavridis, Cornelia
AU - Fajuyitan, Oluwole Kunle
AU - Filippidis, Achilleas
AU - Fischer, Astrid Winther
AU - Fischer, Claas
AU - Gerasimidis, Simos
AU - Karampour, Hassan
AU - Kathirkamanathan, Lijithan
AU - Marten, Frithjof
AU - Mihara, Yasuko
AU - Mishra, Shashank
AU - Sakharov, Volodymyr
AU - Shahini, Amela
AU - Subramanian, Saravanan
AU - Topkaya, Cem
AU - Wagner, Heinz Norbert Ronald
AU - Wang, Jianze
AU - Wang, Jie
AU - Yadav, Kshitij Kumar
AU - Yun, Xiang
AU - Zhang, Pan
N1 - Funding Information: The Lead Authors warmly acknowledge the intellectual legacies of Prof. J. Michael Rotter and Prof. Herbert Schmidt, both former Convenors of CEN/TC250/SC3/WG6, and Prof. Richard Greiner who were major contributors to the ground-breaking EN 1993-1-6 Standard on the Strength and Stability of Metal Shells. The work presented here builds on their many ideas, concepts and advances. Shoulders of giants, and all that. A warm thanks is also extended to Prof. Andreas Taras for his comments on the manuscript. A full list of participants (analysts and their supervisors, collaborators or simply those who gave permission) in this exercise is presented below (alphabetically by country, then by institution and then by surname), and their places of work visualised are in Fig. A to emphasise the wonderfully international nature of this exercise. The Lead Authors are very thankful to each and every participant for their entirely voluntary contributions despite their very busy schedules.
PY - 2023/6
Y1 - 2023/6
N2 - 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 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.
AB - 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 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.
KW - Buckling
KW - EN 1993-1-6
KW - Finite element analysis
KW - GMNIA
KW - LBA-MNA
KW - Plastic collapse
KW - Reference Resistance Design
KW - Round-robin
KW - Wind turbine support tower
UR - http://www.scopus.com/inward/record.url?scp=85150292508&partnerID=8YFLogxK
U2 - 10.1016/j.engfailanal.2023.107124
DO - 10.1016/j.engfailanal.2023.107124
M3 - Article
AN - SCOPUS:85150292508
VL - 148
JO - Engineering failure analysis
JF - Engineering failure analysis
SN - 1350-6307
M1 - 107124
ER -