Acknowledgement
Supported by : 교육부
Applied Chemistry for Engineering (공업화학)
- Volume 5 Issue 4
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- Pages.737-742
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- 1994
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- 1225-0112(pISSN)
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- 2288-4505(eISSN)
DGEBA-MDA-SN-Hydroxyl Group System and Composites : 2. Fracture Energy of Fiber Reinforced Composites
DGEBA-MDA-SN-Hydroxyl Group System의 합성 및 복합재료 제조 : 2. 섬유강화 복합재료의 파괴에너지
- Lee, Jae-Young (Dept. of Chem. Eng., Seoul City Univ.) ;
-
Shim, Mi-Ja
(Dept. of Life Sci., Seoul City Univ.)
;
- Kim, Sang-Wook (Dept. of Chem. Eng., Seoul City Univ.)
- Received : 1994.06.07
- Accepted : 1994.06.20
- Published : 1994.08.01
Abstract
The fracture energy of glass fiber/carbon fiber/epoxy resin hybrid composite system was investigated in the aspect of fracture mechanism. Epoxy resin matrix was DGEBA-MDA-SN-HQ system. On the interface of glass fiber and matrix, post debone friction energy provided a major contribution to the fracture energy, and debonding energy and pull-out energy were of the similar value. In the case of fracture on the interface of carbon fiber and matrix, pull-out energy was the major contributor.
유리섬유/탄소섬유/에폭시 수지 hybrid 복합재료의 파괴에너지를 파괴메카니즘 측면에서 연구하였다. 에폭시 수지 매트릭스는 DGEBA(diglycidyl ether of bisphenol A)-MDA(4,4'-methylene dianiline)-SN(succinonitrile)-HQ(hydroquinone)를 사용하였다. 섬유강화 복합재료의 파괴에너지를 연구한 결과, 유리섬유와 매트릭스의 계면에서는 post debond friction energy가 가장 크게 나타났으며, debonding energy와 pull-out energy는 비슷한 값을 나타내었다. 탄소섬유와 매트릭스의 계면에서 파괴가 일어나는 경우에는 pull-out energy가 가장 큰 영향을 나타내었다.
Keywords