| 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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Pierce, Robert S.
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Topics
Publications (12/12 displayed)
- 2024Fabric compaction and fibre volume fraction evaluation for vacuum-assisted resin infusion modelling
- 2024Optimisation of process-induced residual stresses in composite laminates by different genetic algorithm and finite element simulation coupling methodscitations
- 2024Process-induced residual stresses in composite laminates by different constitutive laws and parametric investigation
- 2024A spacing criterion for perforated release films in vacuum-assisted resin infusion processes
- 2024Optimization of core groove geometry for the manufacture and operation of composite sandwich structures in wind turbine blades
- 2024Computational fluid dynamics modelling of vacuum-assisted resin infusion in composite sandwich panels during wind turbine blade manufacturing
- 2023Tensile performance of Fibre-Oriented scarf repair coupons for wing skin material
- 2019Modelling the size and strength benefits of optimised step/scarf joints and repairs in composite structurescitations
- 2017A multi-physics process model for simulating the manufacture of resin-infused composite aerostructurescitations
- 2017Simulating resin infusion through textile reinforcement materials for the manufacture of complex composite structurescitations
- 2016Permeability characterization of sheared carbon fiber textile preformcitations
- 2014Implementation of a non-orthogonal constitutive model for the finite element simulation of textile composite drapingcitations
Places of action
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document
A spacing criterion for perforated release films in vacuum-assisted resin infusion processes
Abstract
Vacuum infusion processes often use perforated release films as an interlayer between the resin distribution media and the fabric to help separate the infusion consumables from the final composite part. Guidelines are developed in this work for choosing a release film with an appropriate perforation pattern to produce a homogenous flow behaviour. A spacing criterion is derived analytically and provides the maximum allowable distance between the perforations to minimise the risk of introducing voids or dry spots. The criterion relies physically on the fabric permeability and the stack thickness. When the spacing criterion is met, the perforated release film can be homogenised for modelling purposes, an essential simplification for computational efficiency and large-scale simulations. A coupled analytical-numerical method is also presented to evaluate the equivalent through-thickness permeability of the homogenised release film in support of modelling. Preliminary infusion experiments and numerical simulations performed at the unit cell scale in PAM-RTM offer initial validation for the spacing criterion and the homogenisation method, although the current formulation of the criterion is expected to be quite conservative.