PSI - Issue 57

Philipp Ulrich Haselbach et al. / Procedia Structural Integrity 57 (2024) 169–178

177

P. U. Haselbach and P. Berring / Structural Integrity Procedia 00 (2023) 000–000

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Fig. 6. Initial debondings created during the blade assembly process by placing slip foils and perforated slip foils with 30% and 50% slip foil area content between the spar cap region and the rear shear web.

Fig. 7. Digital Image Correlation (DIC) system installed to track by image registration techniques accurately measurements of the crack front and the anticipated crack growth in the bondline between the spar cap region and the rear shear web.

Acknowledgements

This study is partly funded by the Danish Energy Agency through the EUDP grant 640180068 as part of the Reli aBlade project. The support is gratefully acknowledged. Moreover, beside from the authors, many more DTU Wind and Energy Systems employees have been involved in material property characterisation, the blade manufacturing process and blade test preparation as well as in providing input data, as e.g. from aeroelastic simulations. The authors acknowledge and appreciate the supportive and great collaboration and want to thank all who have contributed to it.

References

Jørgensen, J. B. (2017), Adhesive Joints in Wind Turbine Blades. DTU Wind Energy. DTU Wind Energy PhD Vol. 79 https: // doi.org / 10.11581 / DTU:00000027 Sørensen, B. F. et al. (2010), “Blade materials, testing methods and structural design”. In: Wind Power Generation and Wind Turbine Design. Edited by Wei Tong. Volume 44. Boston: WIT Press, 2010. Chapter 13, pages 417–460. isbn: 978-1-84564-205-1. doi: 10.2495 / 978-1-84564-.