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http://dx.doi.org/10.5762/KAIS.2014.15.8.4756

Application of the Infusion Method to the Repair of Damage in Wind Turbine Blades  

Lee, Kwangju (School of Mechanical Engineering, Korea University of Technology and Education)
Jang, Han Seul (Department of Mechanical Engineering, Graduate School of Korea University of Technology and Education)
Seon, Seokwoon (Department of Mechanical Engineering, Graduate School of Korea University of Technology and Education)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.8, 2014 , pp. 4756-4762 More about this Journal
Abstract
Damaged wind turbine blades are repaired conventionally using a hand lay-up method with epoxy, where the bonding strength is not high. Epoxy has poor curing characteristics at low temperatures. The infusion method with polyester was proposed. Infusion method is believed to distribute resin uniformly. Polyester is used because it hardens better than epoxy at low temperatures. At room temperature, the proposed method increased the bonding strength by 77.7% compared to the conventional method. Using the proposed method at 15 and $5^{\circ}C$, the bonding strength increased compared to the conventional method. This paper proposes a new method for repairing wind turbine blades, even at temperatures where the conventional method cannot be used because epoxy resin does not harden. The bonding strength of the proposed method at low temperatures is higher than that of the conventional method at room temperature.
Keywords
Wind Turbine Blade; Infusion Method; Polyester; Bonding Strength;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 H-C Song and J-S Yum, "A Study of the Mechanical Properties of Fiberglass Reinforcements with Constitution of Lay-up, Manufacturing Method, and Resins," Journal of Korean Society of Oceanography, Vol.24, No.5, pp.75-80, 2010   과학기술학회마을
2 J.C. Marin, A. Barroso, F. Paris and J. Canas, "Study of Damage and Repair of Blades of a 300kW Wind Turbine," Energy, Elsevier, Vol.33, pp.1068-1083, 2008   DOI
3 G. Marsh, "The Challenge of Wind Turbine Blade Repair," Renewable Energy Focus, Elsevier, Vol.12, pp.62-66, 2011
4 Resoltech, http://www.resoltech.com/ (accessed June 10, 2014)
5 S-W Yoon, M-G Jeong, Y-B Park, J-H Kweon, J-H Choi, S-J Shin, M-H Song and K-I Song, "Tensile Strength of Composite Laminates with Various Repairing Methods," Proceedings of KSAS 2011 Autumn Annual Meeting, Korean Society of for Aeronautical & Space Sciences, pp.96-99, 2011
6 S-H Ahn, H-K Choi and K-W Nam, "Strength Evaluation for Adhesive Bonds of Adhesive with FRP Ship Body Structure," Journal of Korean Society of Oceanography, Vol.24, No.1, pp.146-152, 2010   과학기술학회마을
7 P.T. Nhut and Y.J. Yum, "Effect of Surface Properties on Adhesive Strength of Joint of Glass Fiber/Polyester Composite Panels," Journal of Korean Society of Mechanical Engineers, A. Vol.36, No.12, pp.1591-1597, 2012 DOI: http://dx.doi.org/10.3795/KSME-A.2012.36.12.1591   과학기술학회마을   DOI
8 S.T Peters, Handbook of Composites, Chapman & Hall, 1998 DOI: http://dx.doi.org/10.1007/978-1-4615-6389-1   DOI
9 J.T. Han, D.H. Lee and K. Cho, "Adhesion Science and Technology," Journal of Korean Society of Industrial and Engineering Chemistry, Vol.7, No.4, pp.43-59, 2004