Effect of yarn cross-sectional shape on resin flow through inter-yarn gaps in textile reinforcements
Article
Article Title | Effect of yarn cross-sectional shape on resin flow through inter-yarn gaps in textile reinforcements |
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ERA Journal ID | 4882 |
Article Category | Article |
Authors | Endruweit, A. (Author), Zeng, X. (Author), Matveev, M. (Author) and Long, A. C. (Author) |
Journal Title | Composites Part A: Applied Science and Manufacturing |
Journal Citation | 104, pp. 139-150 |
Number of Pages | 12 |
Year | 2018 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 1359-835X |
1878-5840 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compositesa.2017.10.020 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S1359835X17303780 |
Abstract | Axial flow through gaps between aligned straight yarns with realistic cross-sectional shapes, described by power-ellipses, was analysed numerically. At a given fibre volume fraction, equivalent gap permeabilities have a maximum at minimum size of elongated tapering parts of the gap cross-section and a ratio of gap width to height near 1. When the yarn spacing is given in addition to the fibre volume fraction, calculated maximum and minimum values for the equivalent permeability of inter-yarn gaps, which occur at near-rectangular and lenticular cross-sections, differ by factors of up to 3.3. Novel approximations for the shape factor and the hydraulic diameter in Poiseuille flow were derived as a function of the fibre volume fraction, the yarn cross-sectional aspect ratio and the exponent describing the shape of the power-elliptical yarn cross-section. This allows the equivalent gap permeability to be predicted with good accuracy for any fibre volume fraction and yarn cross-section. |
Keywords | Fabrics/textiles; Permeability; Numerical analysis; Resin flow |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
401408. Manufacturing processes and technologies (excl. textiles) | |
400101. Aerospace materials | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | University of Nottingham, United Kingdom |
Centre for Future Materials | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4750/effect-of-yarn-cross-sectional-shape-on-resin-flow-through-inter-yarn-gaps-in-textile-reinforcements
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