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

Adam J. Sadowski; Marc Seidel; Hussain Al-Lawati; Esmaeil Azizi; Hagen Balscheit; Manuela Böhm; Lei Chen; Ingmar van Dijk; Cornelia Doerich-Stavridis; Oluwole Kunle Fajuyitan; Achilleas Filippidis; Astrid Winther Fischer; Claas Fischer; Simos Gerasimidis; Hassan Karampour; Lijithan Kathirkamanathan; Frithjof Marten; Yasuko Mihara; Shashank Mishra; Volodymyr Sakharov; Amela Shahini; Saravanan Subramanian; Cem Topkaya; Heinz Norbert Ronald Wagner; Jianze Wang; Jie Wang; Kshitij Kumar Yadav; Xiang Yun; Pan Zhang

doi:10.1016/j.engfailanal.2023.107124

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

Adam J. Sadowski, Marc Seidel, Hussain Al-Lawati, Esmaeil Azizi, Hagen Balscheit, Manuela Böhm, Lei Chen, Ingmar van Dijk, Cornelia Doerich-Stavridis, Oluwole Kunle Fajuyitan, Achilleas Filippidis, Astrid Winther Fischer, Claas Fischer, Simos Gerasimidis, Hassan Karampour, Lijithan Kathirkamanathan, Frithjof Marten, Yasuko Mihara, Shashank Mishra, Volodymyr SakharovAmela Shahini, Saravanan Subramanian, Cem Topkaya, Heinz Norbert Ronald Wagner, Jianze Wang, Jie Wang, Kshitij Kumar Yadav, Xiang Yun, Pan Zhang

Research output: Contribution to journal › Article › peer-review

8 Citations (SciVal)

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.

Original language	English
Article number	107124
Journal	Engineering Failure Analysis
Volume	148
Early online date	20 Feb 2023
DOIs	https://doi.org/10.1016/j.engfailanal.2023.107124
Publication status	Published - 30 Jun 2023

Bibliographical note

The data that has been used is confidential

Funding

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.

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

General Materials Science
General Engineering

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Cite this

Sadowski, A. J., Seidel, M., Al-Lawati, H., Azizi, E., Balscheit, H., Böhm, M., Chen, L., van Dijk, I., Doerich-Stavridis, C., Fajuyitan, O. K., Filippidis, A., Fischer, A. W., Fischer, C., Gerasimidis, S., Karampour, H., Kathirkamanathan, L., Marten, F., Mihara, Y., Mishra, S., ... Zhang, P. (2023). 8-MW wind turbine tower computational shell buckling benchmark. Part 1: An international ‘round-robin’ exercise. Engineering Failure Analysis, 148, Article 107124. https://doi.org/10.1016/j.engfailanal.2023.107124

Sadowski, AJ, Seidel, M, Al-Lawati, H, Azizi, E, Balscheit, H, Böhm, M, Chen, L, van Dijk, I, Doerich-Stavridis, C, Fajuyitan, OK, Filippidis, A, Fischer, AW, Fischer, C, Gerasimidis, S, Karampour, H, Kathirkamanathan, L, Marten, F, Mihara, Y, Mishra, S, Sakharov, V, Shahini, A, Subramanian, S, Topkaya, C, Wagner, HNR, Wang, J, Wang, J, Yadav, KK, Yun, X & Zhang, P 2023, '8-MW wind turbine tower computational shell buckling benchmark. Part 1: An international ‘round-robin’ exercise', Engineering Failure Analysis, vol. 148, 107124. https://doi.org/10.1016/j.engfailanal.2023.107124

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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 {\textquoteleft}round-robin{\textquoteright} 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.",

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AU - Doerich-Stavridis, Cornelia

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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

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

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

Access to Document

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