Modelling compaction variability in out-of-autoclave prepreg laminate
Paper
Paper/Presentation Title | Modelling compaction variability in out-of-autoclave prepreg laminate |
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Presentation Type | Paper |
Authors | Bontch-Osmolovskaia, Daria, Zeng, Xuesen, Callus, Paul, Rider, Andrew, Chang, Paul and Schubel, Peter |
Journal or Proceedings Title | Proceedings of the 22nd International Conference on Composites Materials (ICCM-22) |
Journal Citation | 2019, pp. 638-648 |
Number of Pages | 11 |
Year | 2019 |
Place of Publication | Australia |
ISBN | 9781925627220 |
Web Address (URL) of Paper | https://www.iccm-central.org/Proceedings/ICCM22proceedings/papers/ICCM22_Full_Paper_354.pdf |
Web Address (URL) of Conference Proceedings | https://www.iccm-central.org/Proceedings/ICCM22proceedings/index.htm |
Conference/Event | 22nd International Conference on Composite Materials (ICCM-22) |
Event Details | 22nd International Conference on Composite Materials (ICCM-22) Parent International Conference on Composite Materials Delivery In person Event Date 11 to end of 16 Aug 2019 Event Location Melbourne, Australia |
Abstract | The use of Out-Of-Autoclave (OOA) materials is on the increase in manufacture and repair of aerospace vehicle parts. However, the required aerospace quality standard (sub 1% porosity) is difficult to achieve. This paper proposes a novel experimental method for imaging the flow of trapped air bubbles through the OOA laminate stack. The goal is to quantify the volume of air and volatiles, trapped between the plies during the manufacturing process which will cause the undesirable porosity in the cured part. This paper describes the experimental scanning method for imaging a single ply of OOA material, capable of imaging air bubbles up to 10 microns in size. Then it proposes a future workflow, potentially capable of increasing resolutions of the scans to 3 microns. The air flow is to be modelled numerically, with the goal of constructing an accurate model of a single ply of OOA material - which can be used as a building block in future development of a 3-dimensional model of the laminate stack. This future exploration proposes the use of a novel method, employing a pressure mat during the vacuum consolidation treatment process. |
Keywords | Modelling; Out-of-autoclave prepreg; Porosity / voids |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Centre for Future Materials |
Defence Science and Technology Group, Australia |
https://research.usq.edu.au/item/w730y/modelling-compaction-variability-in-out-of-autoclave-prepreg-laminate
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