Prediction of Defect Formation during Resin Impregnation Process through a Multi-Layered Fiber Preform in Resin Transfer Molding by a Proposed Analytical Model
Dong Gi Seong,
Shino Kim,
Doojin Lee,
Jin Woo Yi,
Sang Woo Kim,
Seong Yun Kim
Affiliations
Dong Gi Seong
Department of Polymer Science and Engineering, Pusan National University, Busan 46241, Korea
Shino Kim
Aircraft Research and Development Division, Korea Aerospace Industries, Gyeongnam 52529, Korea
Doojin Lee
Ceramic Fiber and Composite Materials Center, Korea Institute of Ceramic Engineering and Technology, Gyeongnam 52851, Korea
Jin Woo Yi
Composites Research Division, Korea Institute of Materials Science, Gyeongnam 51508, Korea
Sang Woo Kim
Composites Research Division, Korea Institute of Materials Science, Gyeongnam 51508, Korea
Seong Yun Kim
Department of Organic Materials and Fiber Engineering, Chonbuk National University, Jeonbuk 54896, Korea
It is very important to predict any defects occurring by undesired fiber deformations to improve production yields of resin transfer molding, which has been widely used for mass production of carbon fiber reinforced composite parts. In this study, a simple and efficient analytic scheme was proposed to predict deformations of a multi-layered fiber preform by comparing the forces applied to the preform in a mold of resin transfer molding. Friction coefficient of dry and wet states, permeability, and compressive behavior of unidirectional (UD) and plain woven (PW) carbon fabrics were measured, which were used to predict deformations of the multi-layered fiber preforms with changing their constitution ratios. The model predicted the occurrence, type, and position of fiber deformation, which agreed with the experimental results of the multi-layered preforms.