Identification of saturated and transient transverse permeability of carbon fiber fabrics - Mines Saint-Étienne Access content directly
Conference Papers Year : 2022

Identification of saturated and transient transverse permeability of carbon fiber fabrics

Abstract

Saturated and unsaturated transverse permeability of quasi-unidirectional carbon fiber fabric have been measured with a new test bench equipped with micro-thermocouples. A temperature gradient is detected when the cold fluid enters in contact with the thermocouples. The developed methodology allows tracking the flow front with accuracy in a sample stack which does not exceed 3 mm. Saturated and unsaturated permeability are compared for different fiber volume fractions, between 43 % and 64 %. The decrease of permeability with increased fiber volume fraction is coherent with the Kozeny-Carman’s relation. Thanks to the high resolution in pressure measurement, transient effects can be evidenced in a single ply.
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emse-04616880 , version 1 (19-06-2024)

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Paul Baral, Giuseppe Pedoto, Sylvain Drapier. Identification of saturated and transient transverse permeability of carbon fiber fabrics. ECCM20 - Composites Meet Sustainability, EPFL (École Polytechnique Fédérale de Lausanne); Composite Construction laboratory (CCLab); Laboratory for Processing of Advanced Composites (LPAC) - EPFL, Jun 2022, Lauzanne, Switzerland. pp.1046 à 1051, ⟨10.5075/epfl-298799_978-2-9701614-0-0⟩. ⟨emse-04616880⟩
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