압괴하중하에서 복합소재 원형튜브의하이브리드 효과에 대한 시험적 연구

초록

In this study, effects of fiber hybridization for composite circular tubes were evaluated from the viewpoint of the energy absorption capabilities and crush modes. In order to achieve these goals, four different kinds of circular tubes made of carbon, Kevlar and carbon-Kevlar hybrid fibres composites with epoxy resin were fabricated and compressive tests were conducted. From the test results, it could be concluded that the energy absorption mode of unidirectional carbon-Kevlar hybrid tube with stacking sequence of [90/0] was dependant on types of fiber, which placed in axial direction of the tubes.