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Tensile Property Analysis of NCF Composite Laminated Structure for HP-CRTM Forming Process
Ki-Seok Byeon(변기석),Yu-Jeong Shin(신유정),Han-Kyu Jeung(정한규),Si-Woo Park(박시우),Chun-Su Roh(노춘수),Jin-Soo Je(제진수),Ki-Chul Kwon(권기철) 한국기계가공학회 2019 한국기계가공학회지 Vol.18 No.1
In recent years, the HP-CRTM method, which has the ability to produce carbon fiber-reinforce plastic composites at high speeds, has come into the spotlight in the automotive parts industry, which demands high productivity. Multi-axial carbon fabric, an intermediate material used in this HP-CRTM molding process, consists of layered fibers without crimp, which makes it better in terms of tensile and shear strength than the original woven fabrics. The NCF (non-crimp fabric) can form the layers of the carbon fiber, which have different longitudinal and lateral directions, and ±θ degrees, depending on the product’s properties. In this research, preforms were made with carbon fibers of ±45° and 0/90°, which were lamination structures under seven different conditions, in order to create the optimal laminated structure for automobile reinforcement center floor tunnels. Carbon fiber composites were created using each of the seven differently laminated preforms, and polyurethane was used as the base material. The specimens were manufactured in accordance with the ASTM D3039 standards, and the effect of the NCF lamination structure on the mechanical properties was confirmed by a tensile test.
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