Discrete element modelling of flexible fibre packing
This paper presents Discrete Element Model simulations of packing of non-cohesive flexible fibres in a cylindrical vessel. No interstitial fluid effects are modelled. Each fibre-particle is modelled as a series of connected sphero-cylinders. In an initial study each particle is modelled a single rig...
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| Format: | Article |
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Elsevier
2015
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| Online Access: | https://eprints.nottingham.ac.uk/44158/ |
| _version_ | 1848796850712215552 |
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| author | Langston, Paul Kennedy, Andrew R. Constantin, Hannah |
| author_facet | Langston, Paul Kennedy, Andrew R. Constantin, Hannah |
| author_sort | Langston, Paul |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This paper presents Discrete Element Model simulations of packing of non-cohesive flexible fibres in a cylindrical vessel. No interstitial fluid effects are modelled. Each fibre-particle is modelled as a series of connected sphero-cylinders. In an initial study each particle is modelled a single rigid sphero-cylinder; the method has been used before but this study considers higher aspect ratios up to 30. This posed some modelling challenges in terms of stability which were overcome by imposing limits on the particle angular velocity. The results show very good agreement with experimental data in the literature and more detailed in-house experiments for packing volume fraction. Model results on particle orientation are also shown. The model is developed to include flexibility by connecting sphero-cylinders as sub-elements to describe a particle. Some basic tests are shown for the joint model that connects the sub-elements. The simulation results show similar trends to the rigid particle results with increased packing fraction. The effects of number of sub-elements, joint properties and contact friction are examined. The model has the potential for predicting packing of fibrous particles and fibre bundles relevant to the preparation of preforms for the production of discontinuously-reinforced polymer, ceramic and metallic matrix composites. |
| first_indexed | 2025-11-14T19:54:32Z |
| format | Article |
| id | nottingham-44158 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:54:32Z |
| publishDate | 2015 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-441582020-05-04T16:59:46Z https://eprints.nottingham.ac.uk/44158/ Discrete element modelling of flexible fibre packing Langston, Paul Kennedy, Andrew R. Constantin, Hannah This paper presents Discrete Element Model simulations of packing of non-cohesive flexible fibres in a cylindrical vessel. No interstitial fluid effects are modelled. Each fibre-particle is modelled as a series of connected sphero-cylinders. In an initial study each particle is modelled a single rigid sphero-cylinder; the method has been used before but this study considers higher aspect ratios up to 30. This posed some modelling challenges in terms of stability which were overcome by imposing limits on the particle angular velocity. The results show very good agreement with experimental data in the literature and more detailed in-house experiments for packing volume fraction. Model results on particle orientation are also shown. The model is developed to include flexibility by connecting sphero-cylinders as sub-elements to describe a particle. Some basic tests are shown for the joint model that connects the sub-elements. The simulation results show similar trends to the rigid particle results with increased packing fraction. The effects of number of sub-elements, joint properties and contact friction are examined. The model has the potential for predicting packing of fibrous particles and fibre bundles relevant to the preparation of preforms for the production of discontinuously-reinforced polymer, ceramic and metallic matrix composites. Elsevier 2015-01-31 Article PeerReviewed Langston, Paul, Kennedy, Andrew R. and Constantin, Hannah (2015) Discrete element modelling of flexible fibre packing. Computational Materials Science, 96 (A). pp. 108-116. ISSN 0927-0256 Granular materials; DEM; Packing; Fibres; Aspect ratio http://www.sciencedirect.com/science/article/pii/S0927025614006181?via%3Dihub doi:10.1016/j.commatsci.2014.09.007 doi:10.1016/j.commatsci.2014.09.007 |
| spellingShingle | Granular materials; DEM; Packing; Fibres; Aspect ratio Langston, Paul Kennedy, Andrew R. Constantin, Hannah Discrete element modelling of flexible fibre packing |
| title | Discrete element modelling of flexible fibre packing |
| title_full | Discrete element modelling of flexible fibre packing |
| title_fullStr | Discrete element modelling of flexible fibre packing |
| title_full_unstemmed | Discrete element modelling of flexible fibre packing |
| title_short | Discrete element modelling of flexible fibre packing |
| title_sort | discrete element modelling of flexible fibre packing |
| topic | Granular materials; DEM; Packing; Fibres; Aspect ratio |
| url | https://eprints.nottingham.ac.uk/44158/ https://eprints.nottingham.ac.uk/44158/ https://eprints.nottingham.ac.uk/44158/ |