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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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Yuksel, Onur
Delft University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Friction Dynamics In Mechanical Bar Spreading For Unidirectional Thin-Ply Carbon Fiber
- 2024Microstructural Analysis Of Unidirectional Composites
- 2024Microstructural analysis of unidirectional composites: a comparison of data reduction schemes
- 2024Saturated transverse permeability of unidirectional rovings for pultrusion: The effect of microstructural evolution through compactioncitations
- 2022Experimental Investigation of the Interlaminar Failure of Glass/Elium® Thermoplastic Composites Manufactured With Different Processing Temperaturescitations
- 2021Material characterization of a pultrusion specific and highly reactive polyurethane resin system: Elastic modulus, rheology, and reaction kineticscitations
- 2021Material characterization of a pultrusion specific and highly reactive polyurethane resin systemcitations
- 2021Mesoscale process modeling of a thick pultruded composite with variability in fiber volume fractioncitations
- 2020Meso-scale process modelling strategies for pultrusion of unidirectional profiles
- 2020Experimental and computational analysis of the polymerization overheating in thick glass/Elium® acrylic thermoplastic resin compositescitations
- 2018Meso-scale process modelling strategies for pultrusion of unidirectional profiles
- 2016Experimental and numerical study of the tool-part interaction in flat and double curvature parts
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document
Meso-scale process modelling strategies for pultrusion of unidirectional profiles
Abstract
<p>The resin injection pultrusion is an automated composite manufacturing method in which the resin is injected in a chamber. The flow and the thermo chemical mechanical (TCM) models have been studied for the pultrusion process to improve the reliability of the final products. Flow models are needed to understand and describe the fiber impregnation, filling time and presence of dry spots or voids. Also pressure field in the injection chamber can be estimated with flow models. TCM models are needed to predict residual stress distributions and to optimize the process conditions. A non-uniform fiber distribution strongly affects the results of both types of models. In this study, different strategies are carried out to implement non-uniform fiber distributions into the models. The cross-sectional image and fiber distribution of a 19×19 mm glass fiber reinforced polyester unidirectional pultruded composite is used. Non-uniform fiber distribution is observed and implemented into the flow model by means of permeability variations. The results of this study are compared with uniform fiber distribution results. In the TCM model, the non-uniform fiber volume content is implemented within different sized patches. The results show that the non-uniform fiber fraction should be taken into account for the process models of composites in order to capture the local process induced stresses and probability of dry spots or voids due to poor fiber impregnation.</p>