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반구형 금형으로의 드레이핑에 의한 탄소섬유/에폭시 직물 복합 재료 미세 토우구조의 변형
장승환(Seung Hwan Chang),정지규(Jee Gyu Chung) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
This paper aims to investigate the tow deformation pattern with respect to shear angle and mold property during draping of plain weave carbon/epoxy prepreg. Aluminum and PVC foams with different foam density are used for the draping hemisphere molds with 250 mm diameters. Microscopic observation reveals that tow parameters like crimp angle and Y-directional tow intervals are influenced by shear angle and mold density at the same time. The correlation between crimp angle and Y-directional tow interval is also found out.