Abstract
Blades in wind turbine present a vital role. They are airfoil shaped blades. they harness wind energy and drive the rotor of a wind turbine. Composite materials are the mostly used for the fabrication of blades. They exhibit many high mechanical properties such as high tensile and bending stiffness and weight. These properties give the blades structures more efficiency than using other material. This article presents the results of many experimental analyses performed on a E-glass fiber reinforced composite with polyester resin matrix. E-glass fibers are used as main reinforcement in the composites dedicated to wind turbine blades applications. The composite specimens were produced using a manual lay-up method. Quasi-static tensile and three point bending analyses were conducted to determine the tensile and bending behavior of the composite materials. Different fiber volume fraction was tested in order to determine their effect on the mechanical properties. It was found that the young’s modulus, ultimate strength and strain to failure increase with the fiber volume fraction. Also, the results show that the increase of the fiber volume fraction has a substantial influence on the bending performances (modulus and strength). The results obtained show that the composite material made with E-glass fiber (mat type) give high mechanical characteristics under tensile and bending tests.
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Acknowledgements
The South African and Tunisian authors acknowledge the South African and Tunisia Research Cooperation Program 2019 (SATN 180718350459) for partially supporting this research. The authors gratefully acknowledge the assistance and support of KIMIBURG to elaborate this work. The authors also thank the CEO, Dr. Dhafer Ben Salah, for providing the materials for the elaboration of the composites.
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Essassi, K., Ayachi, A., Feki, N., Bouguecha, A., Chaari, F., Haddar, M. (2023). Mechanical Characterization of Glass Fibers–Reinforced Composites for Wind Turbine Blades Applications. In: Walha, L., et al. Design and Modeling of Mechanical Systems - V. CMSM 2021. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-14615-2_101
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