| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ivanov, Dmitry S.
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (31/31 displayed)
- 2024Novel cellular coil design for improved temperature uniformity in inductive heating of carbon fibre compositescitations
- 2023A comprehensive modelling framework for defect prediction in automated fibre placement of composites
- 2023Manufacturing Multi-Matrix Composites
- 2023Steering Potential for Printing Highly Aligned Discontinuous Fibre Composite Filamentcitations
- 2022A MODELLING FRAMEWORK FOR THE EVOLUTION OF PREPREG TACK UNDER PROCESSING CONDITIONS
- 2022HIGHLY ALIGNED DISCONTINUOUS FIBRE COMPOSITE FILAMENTS FOR FUSED DEPOSITION MODELLING: OPEN-HOLE CASE STUDY
- 2022Understanding tack behaviour during prepreg-based composites’ processingcitations
- 2021On the physical relevance of power law-based equations to describe the compaction behaviour of resin infused fibrous materialscitations
- 2021Modelling compaction behavior of toughened prepreg during automated fibre placement
- 2021Hypo-viscoelastic modelling of in-plane shear in UD thermoset prepregscitations
- 2020Experimental characterisation of the in-plane shear behaviour of UD thermoset prepregs under processing conditionscitations
- 2019Modelling of the in-plane shear behavior of uncured thermoset prepreg
- 2019A numerical study of variability in the manufacturing process of thick composite partscitations
- 2019Machine-driven experimentation for solving challenging consolidation problems
- 2019Mitigating forming defects by local modification of dry preformscitations
- 2019Matrix-graded and fibre-steered composites to tackle stress concentrationscitations
- 2018Experimental Characterisation of In-plane Shear Behaviour of Uncured Thermoset Prepregs
- 2018Multi-scale modelling of non-uniform consolidation of uncured toughened unidirectional prepregscitations
- 2017Positioning and aligning CNTs by external magnetic field to assist localised epoxy curecitations
- 2017Ductility potential of brittle epoxies:Thermomechanical behaviour of plastically-deformed fully-cured composite resinscitations
- 2017Ductility potential of brittle epoxiescitations
- 2017Piezoelectric effects in boron nitride nanotubes predicted by the atomistic finite element method and molecular mechanicscitations
- 2016Smoothing artificial stress concentrations in voxel-based models of textile compositescitations
- 2016Predicting wrinkle formation in components manufactured from toughened UD prepreg
- 2016Multi-scale modelling of strongly heterogeneous 3D composite structures using spatial Voronoi tessellationcitations
- 2016Understanding and prediction of fibre waviness defect generation
- 2016An experimental investigation of the consolidation behaviour of uncured prepregs under processing conditionscitations
- 2015Internal geometric modelling of 3D woven compositescitations
- 2015The compaction behaviour of un-cured prepregs
- 2014Mechanical modelling of 3D woven composites considering realistic unit cell geometrycitations
- 2013NOVEL FLEXIBLE TOOLING TO ENHANCE LIQUID RESIN INFUSION MANUF-ACTURE FOR NET-SHAPED PREFORMS
Places of action
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article
Steering Potential for Printing Highly Aligned Discontinuous Fibre Composite Filament
Abstract
DcAFF (discontinuous aligned fibre filament) is a novel material for fused filament fabrication (FFF) 3D printing made of highly aligned discontinuous fibres produced using high performance discontinuous fibre (HiPerDiF) technology. It reinforces a thermoplastic matrix to provide high mechanical performance and formability. Accurate printing of DcAFF poses a challenge, especially for complex geometries, because: (i) there is a discrepancy between the path where the filament experiences the adhering pressure from the filleted nozzle and the nozzle path; and (ii) the rasters display poor adhesion to the build platform immediately after deposition, which causes the filament to be dragged when the printing direction changes. This paper explains the implication of these phenomena on steering capabilities and examines the techniques for improving DcAFF printing accuracy. In the first approach, the machine parameters were adjusted to improve the quality of the sharp turning angle without changing the desired path, but this showed insignificant effects in terms of precision improvements. In the second approach, a printing path modification with a compensation algorithm was introduced. The nature of the inaccuracy of the printing at the turning point was studied with a first-order lag relationship. Then the equation to describe the deposition raster inaccuracy was determined. A proportional–integral (PI) controller was added to the equation to calculate the nozzle movement in order to bring the raster back to the desired path. The applied compensation path is shown to give an accuracy improvement in curvilinear printing paths. This is particularly beneficial when printing larger circular diameter curvilinear printed parts. The developed printing approach can be applied with other fibre reinforced filaments to achieve complex geometries.