Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 70, Issue 15, Pages 2139-2145Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2010.08.013
Keywords
Laminate; Porosity/voids; Modelling; Autoclave processing
Categories
Funding
- Airbus
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Most critical processing step during long fiber reinforced epoxy matrix composite laminate manufacturing is the polymerization stage If not optimized it gives birth to defects in the bulk material such as voids These defects are considered as possible sources of damage in the composite parts The aim of this work is to model the evolution of void growth in thermoset composite laminates after ply collation (autoclave processes) or resin impregnation (RTM LCM process) A coupled mechanical and diffusion model is presented to better predict the final void size at the end of polymerization Amongst the parameter investigated onset of pressure application and diffusive species concentration where found to have a major effect on void size evolution during curing process (C) 2010 Elsevier Ltd All rights reserved
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