T0101-5-5 CNF/CFRPハイブリッド積層板の衝撃特性評価([T0101-5]マイクロ・ナノ材料システムの力学と強度・機能評価(5))

抄録

In the present study, the impact property of CNF/CFRP hybrid laminates and influence of carbon nanofiber interlayer on impact properties were investigated using the drop weight impact tests. Vapor grown carbon fiber has been employed for the toughener of the interlayer on the CFRP laminates. Drop wight impact tests has been carried out using 'Dynatup' impact test equipment. Damage area occurring in the interface of the CFRP laminate was observed by ultrasonic flaw detection system. The impact characteristic of the CNF/CFRP hybrid laminates were considered from the viewpoint of the relationship between damage area and impact energy. It was found that the delamination area can be reduced by inserting carbon nanofiber interlayer. The optimal quantity of carbon nanofiber for the interlayer was about 20 g/m^2 in the case of VGCF interlayer.