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Intra-ply yarn sliding defect in hemisphere preforming of a woven preform

Labanieh, Ahmad Rashed and Garnier, Christian and Ouagne, Pierre and Dalverny, Olivier and Soulat, Damien Intra-ply yarn sliding defect in hemisphere preforming of a woven preform. (2018) Composites Part A: Applied Science and Manufacturing, 107. 432-446. ISSN 1359835X

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Official URL: https://doi.org/10.1016/j.compositesa.2018.01.018

Abstract

Preforming is the first step to manufacture a complex composite part via Liquid Composite Moulding processes. The defects that may be encountered during this phase within the preform architecture may decrease the expected mechanical performances of the final part. The intra-ply yarn sliding is a defect frequently observed during preforming of a woven preform but its mechanism is far from being fully understood. The aim of this study is to analyse the mechanism of this defect arising when preforming of a carbon woven fabric into hemispheric shape. An experimental study followed by analytical analysis was performed to evaluate the effect of the process parameters, material properties and ply configuration conditions on the yarn tension and contact stresses. A significant effect of the yarn tension and the contact shear stresses on the defect occurrence was demonstrated. Based on this analysis, solutions were tested with success to prevent this defect.

Item Type:Article
HAL Id:hal-02359807
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Ecole Nationale Supérieure des Arts et Industries Textiles - ENSAIT (FRANCE)
Other partners > Université de Lille (FRANCE)
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Deposited On:04 Apr 2019 15:05

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