Print Email Facebook Twitter A model for the consolidation of hybrid textiles considering air entrapment, dissolution and diffusion Title A model for the consolidation of hybrid textiles considering air entrapment, dissolution and diffusion Author Werlen, Vincent (University of Applied Sciences and Arts Northwestern Switzerland; Swiss Federal Institute of Technology) Vocke, Richard (Faserinstitut Bremen (FIBRE)) Brauner, Christian (University of Applied Sciences and Arts Northwestern Switzerland) Dransfeld, C.A. (TU Delft Aerospace Manufacturing Technologies) Michaud, Véronique (Swiss Federal Institute of Technology) Rytka, Christian (University of Applied Sciences and Arts Northwestern Switzerland) Date 2023 Abstract A new model is proposed for the consolidation of hybrid textiles, in which air entrapment and dissolution are considered. One of the key parameters is tow permeability, which is described by the analytical model of Gebart and validated at very high fibre volume fractions by direct tow permeability measurement. The model also takes into account the presence of fibres limiting gas diffusion in the molten polymer. Experimental validation of the proposed model is then conducted with quasi-unidirectional glass textile and either polypropylene or polyethylene by measuring the impregnation degree as a function of the consolidation time. Good agreement is found between predictions and measurements for the two matrix systems at different pressures. It is shown that entrapped air significantly influences impregnation. The model offers new and comprehensive insights about the phenomena taking place during consolidation and enables future process optimization. Subject B. Permeability C. Analytical modelling E. ConsolidationResin film infiltration (RFI) To reference this document use: http://resolver.tudelft.nl/uuid:02f52b38-ff62-47aa-9fb7-f95c88433245 DOI https://doi.org/10.1016/j.compositesa.2022.107413 ISSN 1359-835X Source Composites Part A: Applied Science and Manufacturing, 166 Part of collection Institutional Repository Document type journal article Rights © 2023 Vincent Werlen, Richard Vocke, Christian Brauner, C.A. Dransfeld, Véronique Michaud, Christian Rytka Files PDF 1_s2.0_S1359835X22005942_main.pdf 2.2 MB Close viewer /islandora/object/uuid:02f52b38-ff62-47aa-9fb7-f95c88433245/datastream/OBJ/view