Mechanical Testing of GFRP Composite Materials Used in Wind Turbine Blades Construction

Abstract:

The paper proposes to present the results of the evaluation of glass fiber reinforced plastics (GFRP) used in the construction of wind turbine blades. In a wind turbine, the blades are the most exposed to damages and the defects which appear are various and are connected with the type of manufacture, simple/complex loading, environmental conditions etc. In order to increase the lifetime span and to analyze the degradation phenomena during the materials functioning, destructive evaluation tests are performed to determine the mechanical property, by testing pure shear on specimens Iosipescu, from GFRP with woven reinforcement at [± 45°] and [0°/90°], with the shear fixture, endowment of Technical University Gh.Asachi Iasi.

• Periodical: Advanced Materials Research (Volume 1157)
• Pages: 142-148
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1157.142
• Online since: February 2020
• Authors: Ciprian Morăraș*, Catalin Andrei Tugui, Rozina Steigmann, Paul Doru Barsanescu, Bogdan Leitoiu, Viorel Goanta
• Keywords: Composite Materials, Degradation, Destructive Method, GFRP, Life Time Wind Turbine Blade, Wind Turbine Blade

References

[1] P. Greaves. Fatigue analysis and testing of wind turbine blades (Doctoral dissertation, Durham University) (2013).

[2] S.Erden, K. Sever, Y.Seki, M. Sarikanat, Enhancement of the mechanical properties of glass/polyester composites via matrix modification glass/polyester composite siloxane matrix modification. Fibers and Polymers, 11 (2010) 732-737.

DOI: 10.1007/s12221-010-0732-2

[3] J. Lemaitre, JL. Chaboche, Mechanics of Solid Materials, Cambridge University Press, New York, (1994).

[4] A. Kelly, Interface effects and the work of fracture of a fibrous composite, Proc. R. Soc. Lond. A, Vol. 319 (1970) 95-116.

[5] IEC 61400-23 Wind Turbine Generator System –Part23: Full scale testing of rotor blades (2005).

[6] X. Yong Gan Effect of interface on mechanical properties of advanced composite materials J of Mol.sci. (2009) 5115-5134.

[7] M.J. Hinton, A.S. Kaddour, P.D. Soden, Failure Criteria in Fibre Reinforced Polymer Composites: The World-Wide Failure Exercise. Elsevier; Amsterdam, (2004).

DOI: 10.1016/b978-008044475-8/50002-0

[8] M.J. Santos, J.B. Santos, A.M. Amaro, M.A. Neto, Low velocity impact damage evaluation in fiber glass composite plates using PZT sensors. Comp Part B: Eng 55 (2013) 269-276.

DOI: 10.1016/j.compositesb.2013.06.036

[9] ASTM D 5379/D 5379M – 98, Standard Test Method for Shear Properties of Composite Materials by the V-Notched Beam Method; V-Notched Beam Test Coupon Schematic.

DOI: 10.1520/d5379_d5379m-05

[10] Micro-Measurements / Vishay Precision Group, TN-512-Plane-Shear Measurement with Strain Gages.

[11] N. R Conant, and Odom, E.M. An improved Iosipescu shear test fixture. Journal of Composites Technology and Research, 17 (1995) 50-55.

DOI: 10.1520/ctr10513j