Influence of the micro-structure on saturated transverse flow in fibre arrays
This study analyses the influence of the random filament arrangement in fibre bundles on the resin flow behaviour. Transverse steady-state resin flow which occurs behind a liquid resin flow front was simulated numerically through statistically equivalent micro-structures at high fibre volume fractio...
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| Format: | Article |
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Sage
2018
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| Online Access: | https://eprints.nottingham.ac.uk/48367/ |
| _version_ | 1848797749029371904 |
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| author | Gommer, Frank Endruweit, Andreas Long, Andrew C. |
| author_facet | Gommer, Frank Endruweit, Andreas Long, Andrew C. |
| author_sort | Gommer, Frank |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This study analyses the influence of the random filament arrangement in fibre bundles on the resin flow behaviour. Transverse steady-state resin flow which occurs behind a liquid resin flow front was simulated numerically through statistically equivalent micro-structures at high fibre volume fractions, Vf >0.6, as observed in fibre bundles. The need of applying a minimum gap distance between neighbouring filaments was overcome by automated local mesh refinement. The derived permeability values showed significant scatter. Convergence of these values was determined at a ratio of flow length to filament radius greater than 20 for all three analysed fibre volume fractions. Mean permeabilities were between 6 and 10 times lower than those predicted for a hexagonal fibre array. A statistical model is proposed which is able to predict the scatter of observed permeabilities based on simple micro-structural descriptors. |
| first_indexed | 2025-11-14T20:08:49Z |
| format | Article |
| id | nottingham-48367 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:08:49Z |
| publishDate | 2018 |
| publisher | Sage |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-483672020-05-04T19:25:48Z https://eprints.nottingham.ac.uk/48367/ Influence of the micro-structure on saturated transverse flow in fibre arrays Gommer, Frank Endruweit, Andreas Long, Andrew C. This study analyses the influence of the random filament arrangement in fibre bundles on the resin flow behaviour. Transverse steady-state resin flow which occurs behind a liquid resin flow front was simulated numerically through statistically equivalent micro-structures at high fibre volume fractions, Vf >0.6, as observed in fibre bundles. The need of applying a minimum gap distance between neighbouring filaments was overcome by automated local mesh refinement. The derived permeability values showed significant scatter. Convergence of these values was determined at a ratio of flow length to filament radius greater than 20 for all three analysed fibre volume fractions. Mean permeabilities were between 6 and 10 times lower than those predicted for a hexagonal fibre array. A statistical model is proposed which is able to predict the scatter of observed permeabilities based on simple micro-structural descriptors. Sage 2018-08-01 Article PeerReviewed Gommer, Frank, Endruweit, Andreas and Long, Andrew C. (2018) Influence of the micro-structure on saturated transverse flow in fibre arrays. Journal of Composite Materials, 51 (18). pp. 2463-2475. ISSN 1530-793X Fibres; Microstructures; Numerical analysis; Resin flow http://journals.sagepub.com/doi/abs/10.1177/0021998317747954 doi:10.1177/0021998317747954 doi:10.1177/0021998317747954 |
| spellingShingle | Fibres; Microstructures; Numerical analysis; Resin flow Gommer, Frank Endruweit, Andreas Long, Andrew C. Influence of the micro-structure on saturated transverse flow in fibre arrays |
| title | Influence of the micro-structure on saturated transverse flow in fibre arrays |
| title_full | Influence of the micro-structure on saturated transverse flow in fibre arrays |
| title_fullStr | Influence of the micro-structure on saturated transverse flow in fibre arrays |
| title_full_unstemmed | Influence of the micro-structure on saturated transverse flow in fibre arrays |
| title_short | Influence of the micro-structure on saturated transverse flow in fibre arrays |
| title_sort | influence of the micro-structure on saturated transverse flow in fibre arrays |
| topic | Fibres; Microstructures; Numerical analysis; Resin flow |
| url | https://eprints.nottingham.ac.uk/48367/ https://eprints.nottingham.ac.uk/48367/ https://eprints.nottingham.ac.uk/48367/ |