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Evaluation of Fracture Toughness of Dynamic Interlaminar for CFRP Laminate Plates by Resin Content  

김지훈 (조선대학교 수송기계부품 공장자동화 연구센터)
양인영 (조선대학교 기계공학부)
심재기 (조선대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.12, no.4, 2003 , pp. 43-49 More about this Journal
Abstract
This research work has been carried out for finding J-integral in mode II of CFRP(carbon fiber reinforced plastics) laminate plates based on the classical bar theory in dynamic conditions with consideration of the effect of inertia forces, eventually to lead to finding the dynamic inter-layer fracture toughness. Dynamic inter-layer fracture toughness was found by a self-made ENF(End Notched Flexure) experimental apparatus using Split Hopkinson's Bar(SHPB), and also observed the variation of the fracture toughness haying different resin contents and fiber arrangements of CFRP specimen([$0_3^{\circ}/90_3^{\circ}/0_6^{\circ}/90_3^{\circ}/0_3^{\circ}$], [$0_{20}^{\circ}$], [$0_5^{\circ}/90_{10}^{\circ}/0_5^{\circ}$]). As an experimental result, in either cases of quasi-static or dynamic load condition, the critical load and the inter-layer fracture toughness increased sharply depending on the increase of resin contents. Therefore, it could, be concluded that the effect by resin contents is the major factor determining the inter-layer fracture toughness in the CFRP laminate plates.
Keywords
CFRP; SHPB; J-integral; Fracture Toughness;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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