113 不織布挿入型ハイブリッド複合材料の積層板の層間破壊じん性値について

概要

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Interlaminar fracture behavior of hybrid composites with non-woven carbon tissue has been investigated under mode I (DCB) and mode II (ENF) loading condition. Hybrid composites are made by inserting non-woven tissue between prepreg layers. Two kinds of specimens were prepared from [0]_<24> and [0_<12>/0_<12>]. Where, the symbol "/" means that non-woven carbon tissue is located at 0/0 mid-plane of the specimen. The initial interlaminar crack was located to mid-plane of the specimen. Interlaminar fracture toughness (G_<IC>, G_<IIC>) of hybrid composites is compared with those of CFRP. The fracture surfaces of the specimens were observed by SEM, and the fracture mechanism was discussed. The unidirectional laminates, which are made by inserting non-woven carbon tissue between layers, seem to be effective to improve the interlaminar fracture toughness.
社団法人日本機械学会の論文
2000-10-05