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항공기 기체에 적용된 샌드위치 복합재 구조의 손상 후 수리 방안 연구
박현범,공창덕,Park, Hyunbum,Kong, Changduk 항공우주시스템공학회 2013 항공우주시스템공학회지 Vol.7 No.1
In this study, damage assesment and repair technique of aircraft adopted on Sandwich composite structure were performed. The sandwich composite structure were damaged by drop weight type impact test machine. The damaged sandwich composite structure was repaired using external patch repair method after removing damaged area. This study presents comparison results of the experimental investigation between the impact damaged and the repaired specimen.
VARTM 공법으로 제작된 자연섬유 복합재료의 기계적 특성 분석
박현범,Park, Hyunbum 항공우주시스템공학회 2016 항공우주시스템공학회지 Vol.10 No.3
In this study, an investigation was performed on the mechanical properties of the natural-fiber-composite structure. The specimen was manufactured using the Vacuum Assisted Resin Transfer Molding (VARTM) method. The flax-fiber materials were adopted for the natural fiber composite, and vinyl-ester resin was also adopted. After a manufactured specimen was obtained, a mechanical test was carried out. The mechanical properties of the experiment results were compared with those of the natural-composite data cited from a number of other references.