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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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Heider, Dirk
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Carbon Fiber Composites Recycling Technology Enabled by the TuFF Technologycitations
- 2023Stretch-Steering of Aligned Discontinuous Fiber Tapes on Highly Curved Paths using Automated Fiber Placement
- 2018Characterization of interlayer air permeability of thermoplastic prepreg stackscitations
- 2018Experimental characterization of single ply out‐of‐plane permeability through gaseous flowcitations
- 2017Determination of void statistics and statistical representative volume elements in carbon fiber-reinforced thermoplastic prepregscitations
- 2017Void reduction of high-performance thermoplastic composites via oven vacuum bag processingcitations
- 2014Inter-layer thermal contact resistance evolution with the degree of intimate contact in the processing of thermoplastic composite laminatescitations
- 2009Modeling VARTM Processes with Hybrid Media Incorporating Gravity Effectscitations
- 2005Vacuum Assisted Resin Transfer Molding (VARTM) Process Incorporating Gravitational Effects: A Closed-form Solutioncitations
- 2001Flow front measurements and model validation in the vacuum assisted resin transfer molding processcitations
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article
Determination of void statistics and statistical representative volume elements in carbon fiber-reinforced thermoplastic prepregs
Abstract
<jats:p> Void consolidation of high-performance thermoplastic composites strongly depends not only on average void content but also on the distributions of void size, shape, and location within the prepreg materials. High-resolution 3-D X-ray microcomputed tomography shows that voids in carbon/poly(ether ether ketone) (AS4/APC2) prepreg are rodlike with major axis along the fiber axial direction. In order to accurately characterize the void microstructure, a detailed study was conducted to quantify the statistical distribution of void content, void length, equivalent void diameter, and void aspect ratio. Resolution of 1.48 μm/pixel provided a balance of measurement accuracy and inspection time. Suitable statistical distribution functions were found to describe the void length, diameter, and aspect ratio. For each void property, a sub-statistical representative volume element (SRVE) was determined. The SRVE of the overall void microstructure is defined as the maximum dimensions of the sub-SRVEs. In case of AS4/APC2 tape, the SRVE was found to be 6.1 mm in length (fiber direction), 27 mm in width (transverse to fiber direction), and 0.18 mm of full prepreg thickness. </jats:p>