Tapered laminate designs for new non-crimp fabric architectures

York, C. B. and Almeida, S. F. M. (2017) Tapered laminate designs for new non-crimp fabric architectures. Composites Part A: Applied Science and Manufacturing, 100, pp. 150-160. (doi: 10.1016/j.compositesa.2017.04.023)

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Non-Crimp Fabric (NCF) materials are now available in a range of areal weights and layer architectures, including 0/45, 0/−45, 45/−45 and 0/90, which correspond to the standard ply orientations employed in traditional UD material lay-ups. The benefit of NCF material is generally associated with increased deposition rate, but this advantage may be offset by reduced design freedoms when a specific form of mechanical coupling behaviour is required, layer terminations must be introduced and/or thermal warping distortion eliminated. This article investigates the extent to which new NCF architectures can be tailored to achieve warp free tapered laminates with mechanical Extension-Shearing Bending-Twisting coupling, by single axis (longitudinal) deposition of all ply angles; thus avoiding ply discontinuities that may be introduce in large component manufacture. Lamination parameter design spaces are used to demonstrate the extent of the feasible solutions both before and after applying a laminate tapering scheme.

Item Type:Articles
Additional Information:The Newton Research Collaboration Programme (NRCP1516/4/50) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq 309545/2015-3 and 574004/2008-4) are gratefully acknowledged for supporting this research.
Keywords:Laminate taper, extension-shearing coupling, bending-twisting coupling, Non-Crimp Fabrics.
Glasgow Author(s) Enlighten ID:York, Dr Christopher
Authors: York, C. B., and Almeida, S. F. M.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:Composites Part A: Applied Science and Manufacturing
ISSN (Online):1878-5840
Published Online:02 May 2017
Copyright Holders:Copyright © 2017 Elsevier Ltd.
First Published:First published in Composites Part A: Applied Science and Manufacturing 100: 150-160
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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