Effect of Peel Ply on Resin Flow during Vacuum Infusion

Although various simulations have been conducted for the vacuum infusion process, most of the studies have considered only fabrics and flow medium and ignored the effect of peel ply. However, peel ply can affect resin flow because it is placed between the fabrics and flow medium. To verify this, per...

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Bibliographic Details
Published in:Materials 2023-06, Vol.16 (12), p.4421
Main Authors: An, Sehun, Kim, Jung-Soo, Roh, Hyung Doh, Kim, Wie-Dae, Lee, Jungwan, Um, Moon-Kwang
Format: Article
Language:English
Subjects:
Camcorders
Carbon fibers
Decomposition
Fabrics
Flow distribution
Flow simulation
Layers
Permeability
Porous materials
Resins
Simulation
Simulation methods
Textile composites
Textile fabrics
Thermogravimetric analysis
Three dimensional flow
Viscosity
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Summary:Although various simulations have been conducted for the vacuum infusion process, most of the studies have considered only fabrics and flow medium and ignored the effect of peel ply. However, peel ply can affect resin flow because it is placed between the fabrics and flow medium. To verify this, permeability of two types of peel plies was measured, and it was found that the permeability between the peel plies differed significantly. Moreover, the permeability of the peel plies was lower than that of the carbon fabric; thus, peel ply can cause a bottleneck in the flow in the out-of-plane direction. Some 3D flow simulations were conducted in cases of no peel ply and for two types of the peel plies to confirm the effect of peel ply, and experiments were also conducted for two types of the peel plies. It was observed that filling time and flow pattern were highly dependent on the peel plies. The smaller permeability of peel ply has, the greater effect of peel ply is. These results indicate that the permeability of peel ply is one of the dominant factors and should be considered in process design in vacuum infusion. Additionally, by adding one layer of peel ply and applying permeability, the accuracy of flow simulations can be improved for filling time and pattern.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma16124421