Journal
POLYMER COMPOSITES
Volume 29, Issue 5, Pages 560-568Publisher
WILEY
DOI: 10.1002/pc.20444
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A new special finite element formulation and code are developed to simulate the two-dimensional flow and compaction process during the autoclave processing of complex fiber-reinforced thermosetting composite laminates. The numerical model is based on the Biot's consolidation principle, the fluid continuity equation, and Darcy's law. The simulation is performed for Hercules AS4/3501-6 laminates and the predicted results are in good agreement with the results available in the literature. The laminate thickness and fiber volume fraction distribution of cured laminates are investigated from both the experiments and the simulations for T700S/ 5228 laminates. The simulations and experimental results are in good agreement for all the studied cases. A significantly uneven degree of consolidation along the laminate thickness direction is observed, and it is necessary to optimize the cure cycle to get uniformly compact and good quality laminates.
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