Comparison of Mechanical Properties of Laminates Fabricated Using Vacuum Infused Knitted Reinforcements

摘要

The strengths of various types of knit reinforcements (0/90, +/-45, quadraxials, etc.) are well understood for products fabricated using conventional techniques, including hand layup. Closed molding vacuum-assisted manufacturing methods often produce higher fiber content laminates, with a corresponding reduction in laminate thickness. The performance of some vacuum-infused commercially available knitted reinforcements are presented and compared. It is shown that resin-infusion techniques can produce very high-strength, low void content laminates using reinforcements that are not specifically designed for infusion.