Internal structure of structurally stitched NCF preform


Koissin, V. and Ruopp, A. and Lomov, S.V. and Verpoest, I. and Witzel, V. and Drechsler, K. (2006) Internal structure of structurally stitched NCF preform. In: 12th European Conference on Composite Materials, ECCM 12, 2006, August 29 - September 1, 2006, Biarritz, France.

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Abstract:The paper addresses the experimental investigation of the unit cell architecture in a structurally stitched multilayer carbon-fibre preform. Each layer is a multiaxial multiply non-crimp fabric (NCF) knit with a non-structural stitching. The term “structural” presumes here that the stitching yarn does not only consolidate the plies (as the non-structural one does) but also forms a 3D reinforcement. One stitching technique — tufting — is studied, with 120 tex aramide yarn. The experimental data reveals a considerable irregularity of the piercing pattern and fibre distribution.
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Engineering Technology (CTW)
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