Mechanical Properties of Panels Fabricated by theVARTM Processed Composites Using Different Fibersand Fabric Architectures

摘要

This paper describes the materials and procedures required to fabricate panels by the VARTMrnprocess utilizing one resin matrix and two different fibers and their architectures. These panels werernthen cut into test coupons and the mechanical properties were determined. The matrix used was DowrnChemical’s Derakane 510A-40, a brominated vinyl ester. This matrix is considered a fire retardantrnresin suitable for the VARTM process. The reinforcements used were FGI’s 1854 Rovcloth, FGI’srn1800-S2 Knitmat, and Devold AMT AS’s LT 650-C12. The first material is an 18 ounce woven rovingrnusing E-Glass and the second is a biaxial stitch bonded E-Glass with alternating warp and welt. Thernthird reinforcement is biaxial stitch bonded T700 carbon fiber with alternating warp and welt. Twornby three feet by 0.10-inch thick panels were molded from each of these reinforcements. Panels wererncut into coupons for mechanical property measurement. Coupons for tensile, compression, in-planernshear and short beam shear test were cut in both the warp and welt directions and theirrncorresponding properties were measured and compared for fibers of different architecture and type.