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HomeKey Engineering MaterialsKey Engineering Materials Vol. 926Large Scale Forming of Non-Crimp Fabrics for...

Large Scale Forming of Non-Crimp Fabrics for Aerostructures

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Abstract:

The increased production rate targets of the aerospace industry have driven the development of dry fibre infusion processes. Biaxial Non-Crimp Fabrics (NCFs) are considered in this work due to their potential high deposition rates and higher mechanical performance to woven fabrics. Forming is an integral step prior to infusion and curing. Understanding the forming behaviour of NCFs at scale is therefore key to achieving high quality parts at high rates. To investigate the draping and shearing behaviour of NCFs, geometries with complexities associated with the composite structure are used. This study presents an experimental campaign on two large scale (2 metres in span) geometries with complexities seen in primary aerostructures. The combination of features such as ramps and curvature with corner radii leads to distinctive out-of-plane wrinkling. The relationship between geometry, material and resulting preform quality is observed through the use of 3D scans. Results show differing preform quality in terms of wrinkling phenomena, showing the importance of geometry of choice for material drapability tests at an industrial scale.

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Periodical:

Key Engineering Materials (Volume 926)

Pages:

1387-1398

DOI:

https://doi.org/10.4028/p-809h64

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Online since:

July 2022

Authors:

Claudia Jimenez Martin*, Vincent Maes, Turlough McMahon, James Kratz

Keywords:

Dry Fibre Process, Forming, Non-Crimp Fabrics

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Creative Commons CC BY 4.0

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* - Corresponding Author

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