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Resin fillet formation in honeycomb sandwich structures
conference contribution
posted on 2015-01-01, 00:00 authored by Matt JenningsMatt Jennings, Mandy De Souza, Claudia CreightonClaudia Creighton, Steven Agius, A P Pierlot, B L Fox© 2015 International Committee on Composite Materials. All rights reserved. In order to meet the challenges of high production rates for composite structures, an understanding of the relationship between the skin-core interface and heating rate during the curing of sandwich structures is required. This study found that heating rate during cure can affect the size and shape of resin fillets between the skin and the honeycomb core cell walls, but not in a practically significant way. A small effect of heating rate on resin fillet size was seen when heating Hexcel HexPly 8552 UD skinned, Kevlar paper honeycomb cored sandwich structures at 1.5, 6 and 8°C/min. The resin fillet sizes were larger when heated at 1.5 and 6°C/min than those heated at 8°C/min, although there was a large variability of resin fillet sizes. This study concluded that while the effect of heating rate on the skin-core bond needs to be considered, faster heating of composite sandwich structures with epoxy resins and isothermal curing required for automotive production will not greatly affect the skin-core bond.
History
Event
Composite Materials. Conference (2015 : Copenhagen, Denmark)Volume
2015-JulyPagination
1 - 1Publisher
[The Conference]Location
Copenhagen, DenmarkPlace of publication
Copenhagen, DenmarkStart date
2015-07-19End date
2015-07-24Language
engNotes
Poster PresentationPublication classification
E1 Full written paper - refereedCopyright notice
2015, International Committee on Composite MaterialsTitle of proceedings
ICCM 2015 : Proceedings of the 20th International Conferences on Composite MaterialsUsage metrics
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