A Characterization Study Relating Cross-Sectional Distribution of Fiber Volume Fraction and Permeability

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In the present study, Scanning Electron Microscopy (SEM) has been used to assess the influence of a varying cross-sectional fiber volume fraction on local permeability values. The investigated sample is a textured glass fiber reinforced polyurethane composite rod with an Ø5mm cross-section. The SEM investigations show a high variation in local fiber volume fraction with a mean fiber volume fraction of 0.41±0.2, which is in agreement with the value 0.41 obtained by burn-off test by the manufacturer. The additional result from the SEM investigations was a mean fiber diameter of 23.2±2.6μm, which was verified by single fiber tests. The characterization results were successfully used to evaluate the local variation in permeability over the cross-section and could most likely be a very essential input for numerical impregnation simulations.
Original languageEnglish
Title of host publicationProceedings of 22nd International Conference on Composite Materials
Number of pages7
Publication date2019
Publication statusPublished - 2019
Event22nd International Conference on Composite Materials 2019 - Melbourne Convention and Exhibition Centre, Melbourne , Australia
Duration: 11 Aug 201916 Aug 2019


Conference22nd International Conference on Composite Materials 2019
LocationMelbourne Convention and Exhibition Centre
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