| 학회 | 한국고분자학회 |
| 학술대회 | 2002년 봄 (04/12 ~ 04/13, 서울대학교) |
| 권호 | 27권 1호, p.219 |
| 발표분야 | 복합재료 |
| 제목 | Comparison of Interfacial Sensing Properties of Carbon and SiC Fibers/Epoxy Composites with Different Embedding Angles using Electro-Micromechanical Technique |
| 초록 | Interfacial properties and electrical sensing for fiber fracture in carbon and SiC fibers/epoxy composites were investigated by the electrical resistance measurement and fragmentation test. As fiber-embedded angle increased, interfacial shear strength (IFSS) of two-type fiber composites decreased, and the elapsed time was short to the infinity in electrical resistivity. The initial slope of electrical resistivity increased rapidly to the infinity at higher angle, whereas electrical resistivity increased gradually at small angle. Furthermore, both fiber composites with small embedded angle showed a fully-developed stress whitening pattern, whereas both composites with higher embedded angle exhibited a less developed stress whitening pattern. As embedded angle decreased, the gap between the fragments increased and the debonded length was wider for both fiber composites. Electro-micromechanical technique can be a feasible nondestructive evaluation to measure interfacial sensing properties depending on the fiber-embedded angle in conductive fiber reinforced composites. Acknowledgement: This study was supported financially by KoSEF through Research Center for Aircraft Parts Technology (ReCAPT), GNU. |
| 저자 | 이상일1, 김태근2, 박종만 |
| 소속 | 1경상대, 2항공기부품기술연구센터 |
| 키워드 | |
