Abstract
Visualization of resin flow progression through fibrous preforms is often sought to elucidate flow patterns and validate models for filling prediction for liquid composite molding processes. Here, conventional X-ray radiography is compared to X-ray phase contrast technique to image in-situ constant flow rate impregnation of a non-translucent unidirectional carbon fabric. X-ray attenuation of the fluid phase was increased by using a ZnI2-based contrasting agent, leading to enough contrast between the liquid and the low density fibers. We proved the suitability of conventional X-ray transmission to visualize fluid paths by elucidating different flow patterns, spanning from capillary to viscous regimes and a macro-void entrapment phenomenon
Original language | English |
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Title of host publication | Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability |
Subtitle of host publication | Vol 2 – Manufacturing |
Editors | Anastasios P. Vassilopoulos, Véronique Michaud |
Place of Publication | Lausanne |
Publisher | EPFL Lausanne, Composite Construction Laboratory |
Pages | 1013-1020 |
Number of pages | 8 |
ISBN (Electronic) | 978-2-9701614-0-0 |
Publication status | Published - 2022 |
Event | 20th European Conference on Composite Materials: Composites Meet Sustainability - Lausanne, Switzerland Duration: 26 Jun 2022 → 30 Jun 2022 Conference number: 20 |
Conference
Conference | 20th European Conference on Composite Materials |
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Abbreviated title | ECCM20 |
Country/Territory | Switzerland |
City | Lausanne |
Period | 26/06/22 → 30/06/22 |
Keywords
- Liquid Composite Molding (LCM)
- Resin flow
- Saturation curve
- Process monitoring; X-ray imaging