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콘텐츠 본문

논문 국내 국내전문학술지(KCI급) 필라멘트 와인딩된 카본/에폭시 복합재의 층간파괴인성에 미치는 온도 영향

논문 초록 (Abstract)

This paper reports an experimental study for evaluating the effect of temperature on the mode I, mode II and mixed-mode interlaminar fracture toughness of adhesive joints with a curved cross-section of filament-wound dome-separated composite pressure vessel. Mode I and mixed-mode interlaminar fracture toughness were evaluated using DCB specimens, while mode II interlaminar fracture toughness was determined using ENF specimens. [±10°]6, [±27°]6 and ([±10°]3/FM73/[±27°]3) winding specimens with the curved cross-section were considered. In-situ temperature environments were simulated with a range of -30℃ -60℃ using an environmental chamber and furnace. Experimental results on the effect of temperature indicate that interlaminar fracture toughness tends to be high at low temperature and is degraded with increase in temperature. For specimen types, it was found that interlaminar fracture toughness of [±10°]3/FM73/[±27°]3 winding specimens considered as adhesive joints of dome and helical part was higher than other specimens.