대한기계학회:학술대회논문집 (Proceedings of the KSME Conference)
- 대한기계학회 2003년도 춘계학술대회
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- Pages.497-502
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- 2003
탄소나노튜브/에폭시 복합소재의 감쇠특성 분석
Damping Characterization of Carbon Nanotube/Epoxy Composites
초록
This study intends to provide the analytical and experimental damping characterization of carbon nanotube/epoxy composites. A constitutive model based on continuum mechanics is employed to describe epoxy and the perfectly bonded and partially bonded nanotubes. An interfacial stick-slip between the nanotubes and epoxy is considered to characterize the damping of the composites. For experimental estimation, beam-type specimens are prepared with a variation of nanotube concentration from 0.5% to 2% in weight. An ultrasonic agitation method is employed for enhancing the nanotube dispersion within epoxy. Damping of the composites is characterized in terms of the strain and the nanotube concentration. Results show that the nanotube concentration significantly affects the damping characteristics of the nanocomposites. A good correlation is found between the analytical prediction based on the stick-slip and the experimental measurements.
키워드