Advanced Natural Stitched Composite Materials in Skin-Stiffener of Wind Turbine Blade Structures

F. Papadopoulos; D. Aiyappa; R. Shapriya; E. Sotirchos; H. Ghasemnejad; R. Benhadj-Djilali

doi:10.4028/www.scientific.net/KEM.525-526.45

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 525-526Advanced Natural Stitched Composite Materials in...

Advanced Natural Stitched Composite Materials in Skin-Stiffener of Wind Turbine Blade Structures

Abstract:

In this paper the failure behaviour of natural stitched composite materials in the skin-stiffener of wind turbine blade structures are investigated. For this study, the laminated composite beams were stitched using Flax yarns before curing process. Two stiffener structures of T-beam and Box-beam are studied in this paper. These specimens were tested under quasi-static loading condition to compare the failure resistance of adhesive and stitched bonding methods. Furthermore, the cohesive zone modelling (CZM) which is known as a variation in the cohesive stresses with the interfacial opening displacement along the localised fracture process zone is used to predict bonding failure in the skin-stiffener of wind turbine blade structures.

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Periodical:

Key Engineering Materials (Volumes 525-526)

Pages:

45-48

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.525-526.45

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Online since:

November 2012

Authors:

F. Papadopoulos, D. Aiyappa, R. Shapriya, E. Sotirchos, H. Ghasemnejad, R. Benhadj-Djilali

Keywords:

Composite, CZM, Failure, Joint, Stitched, Wind

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References

[1] H. Ghasemnejad, V.R. Soroush, P.J. Mason, B Weager, To improve impact damage response of single and multi-delaminated FRP composites using natural Flax yarn, in 'Materials and Design, 2012; 36: 865–873.

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[2] H. Ghasemnejad, L. Occhineri, D.T. Swift-Hook, Post-buckling failure in multi-delaminated composite wind turbine blade materials, in 'Materials and Design, 2011; 32(10): 5106–5112.

DOI: 10.1016/j.matdes.2011.06.012

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