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Complex shape forming of a flax woven fabric; analysis of the tow buckling and misalignment defect

Ouagne, Pierre and Soulat, Damien and Moothoo, Julien and Capelle, Emilie and Guéret, Sébastien Complex shape forming of a flax woven fabric; analysis of the tow buckling and misalignment defect. (2013) Composites Part A: Applied Science and Manufacturing, 51. 1-10. ISSN 1359-835X

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Official URL: https://doi.org/10.1016/j.compositesa.2013.03.017

Abstract

With the view to minimise the impact on the environment and to produce structural parts with a goodproduction-rate/cost-ratio, the sheet forming of woven flax based fabric was investigated in this study. Aflax fibre plain-weave fabric has been used to form a complex tetrahedron shape. This shape is of partic-ular interest as it contains several geometric singularities required by many automotive parts such asdouble or triple curvature and low-curvature edges. Globally, the complex tetrahedron shape wasobtained, but tow buckling (out of plane bending of tows) was observed in specific zones of the shape.The main mechanism at the origin of this defect has been defined. A reduction of the tow buckle sizewas obtained by increasing the membrane tension. The influence of fabric architecture at the mesoscopicand macroscopic scales on the appearance of the tow buckles was demonstrated and discussed. Solutionsto prevent the appearance of this defect based on the design of the fabric architecture at the tow or fabricscales were successfully proposed. As a consequence, when sheet forming of complex shapes is consid-ered, specific fabric architectures should be chosen to prevent the appearance of the buckling defect

Item Type:Article
HAL Id:hal-03467735
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Laboratoire de recherche textile - GEMTEX (FRANCE)
Other partners > Ecole Nationale Supérieure des Arts et Industries Textiles - ENSAIT (FRANCE)
Other partners > Groupe Depestele (FRANCE)
Other partners > Institut National des Sciences Appliquées de Centre Val de Loire - INSA (FRANCE)
Other partners > Université d'Orléans (FRANCE)
Laboratory name:
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Deposited On:07 Oct 2021 13:32

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