Bending Behavior Analysis of Box Beams with the Reinforcement of Composite Materials for Wind Turbine Blades
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Methods
2.3. Beam Manufacturing
2.4. Experimental Setup and Instrumentation
2.4.1. Four-Point Bending Tests
2.4.2. Two-Points Bending Tests
2.5. Finite Element Simulation
3. Results
3.1. Design of Experiments
3.2. Four-Point Bending Tests
3.3. Bending Tests at Two-Points
3.4. Four-Point Bending Simulation
3.5. Two-Point Bending Simulation
4. Discussion
5. Conclusions
- In the bending analysis at four points, it was determined that profile 2, with an inverted V shape, and profile 3, with an X shape, decrease their bending by 30.09% and 19.41%, respectively, compared to profile 1.
- Comparisons between simulations and experiments were made regarding the bending response, and the most excellent convergence in the results was obtained with the bending tests at two points, with an error of less than 10%.
- The box beam reinforced with the same composite material has a higher structural resistance of 43.41% (profile 2) and 24.33% (profile 3) in four-point bending tests. In addition, by using the same material for structural reinforcements, properties such as lightness and flexibility are preserved.
- The elastic modulus of the material was determined theoretically and experimentally by bending tests at two points and bending tests at four points. The values range from 3.66 GPa to 6.57 GPa, respectively.
- Using inverted V-shaped fiberglass and polyester resin laminates as a structural reinforcement improved the flexural strength of the box beam by 43.41%. In this way, the reinforcement of profile 2 with an inverted V shape improves the resistance of the box beams when they are subjected to loads in the flag direction. For this reason, applying WTB is a viable option.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Cross-Sectional Area (mm2) | Inertia Moment (mm4) | |
---|---|---|
Profiles | ||
1 | 433.19 | 162,769.25 |
2 | 661.30 | 201,114.18 |
3 | 708.10 | 250,022.23 |
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Maldonado-Santiago, O.; Robles-Ocampo, J.B.; Gálvez, E.; Sevilla-Camacho, P.Y.; de la Cruz, S.; Rodríguez-Reséndiz, J.; Hernández, E. Bending Behavior Analysis of Box Beams with the Reinforcement of Composite Materials for Wind Turbine Blades. Fibers 2023, 11, 99. https://doi.org/10.3390/fib11120099
Maldonado-Santiago O, Robles-Ocampo JB, Gálvez E, Sevilla-Camacho PY, de la Cruz S, Rodríguez-Reséndiz J, Hernández E. Bending Behavior Analysis of Box Beams with the Reinforcement of Composite Materials for Wind Turbine Blades. Fibers. 2023; 11(12):99. https://doi.org/10.3390/fib11120099
Chicago/Turabian StyleMaldonado-Santiago, Ofelia, Jose Billerman Robles-Ocampo, Eduardo Gálvez, Perla Yazmin Sevilla-Camacho, Sergio de la Cruz, Juvenal Rodríguez-Reséndiz, and Edwin Hernández. 2023. "Bending Behavior Analysis of Box Beams with the Reinforcement of Composite Materials for Wind Turbine Blades" Fibers 11, no. 12: 99. https://doi.org/10.3390/fib11120099