적층각도를 가진 모드 Ⅱ CFRP 시험편의 접착 피로특성에 의한 구조안정성 평가
An Evaluation of Structural Safety by the Bonded Fatigue Property of CFRP Specimen for Mode Ⅱ with Layer Angle
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초록
CFRP hardened by carbon fiber and resin has the property of high strength and low weight. Specifically, the strong feature against the external vibration environment is shown as CFRP is designed with the structure of multi-axes. So, CFRP in place of metal has been used at the various fields. CFRP specimens for mode Ⅱ are applied with the repetitive fatigue load in this study. These specimens have the fiber layer angles of 30°, 45° and 60°. The material properties of specimens are investigated with the result of fatigue fracture due to this load. As the study result, the smallest and largest reaction forces of 500 N and 540 N are shown at the layer angle of 30° and 60° respectively among these specimens. The separation of adhesive interface at 4000 fatigue cycles is happened earliest in case of the layer angle of 60°. But the separation of adhesive interface at 11000 fatigue cycles is happened latest in case of the layer angle of 45°. Through the result of fatigue property, it is thought that the basis data can be applied to evaluate the safety at CFRP structure applied with fatigue.
Abstract
CFRP hardened by carbon fiber and resin has the property of high strength and low weight. Specifically, the strong feature against the external vibration environment is shown as CFRP is designed with the structure of multi-axes. So, CFRP in place of metal has been used at the various fields. CFRP specimens for mode Ⅱ are applied with the repetitive fatigue load in this study. These specimens have the fiber layer angles of 30°, 45° and 60°. The material properties of specimens are investigated with the result of fatigue fracture due to this load. As the study result, the smallest and largest reaction forces of 500 N and 540 N are shown at the layer angle of 30° and 60° respectively among these specimens. The separation of adhesive interface at 4000 fatigue cycles is happened earliest in case of the layer angle of 60°. But the separation of adhesive interface at 11000 fatigue cycles is happened latest in case of the layer angle of 45°. Through the result of fatigue property, it is thought that the basis data can be applied to evaluate the safety at CFRP structure applied with fatigue.
참고문헌 (7)
- 최해규, "알루미늄 폼으로 된 DCB 모델의 피로해석에 관한 연구", 한국기계기술학회지, 14(6), pp.39~43 (2012), 한국기계기술학회
- O. T. Thomsen, "PLY DROP-OFF EFFECTS IN CFRP", HONEYCOMB SANDWICH PANELSTHEORY, 1996, pp.56, 407~422
- Martin Rinker, "Face sheet debonding in CFRP", PMI sandwich structures under quasi-static and fatigue loading considering residual thermal stress, 2011, pp.78, 2835~2847
- M. Mohamed, "Manufacturing and characterization of polyurethane based sandwich composite structures", Composite Structures, 123, pp.169~179 (2015)
- 양현수, "CF", Epoxy 복합재 적층쉘의 항공기 부재 충격특성에 관한 연구, 2012, pp.14(6), 17~24[DOI]
- V. N. Pilipchuk, "Low temperature brittle debond damage under normal compression of sandwich plates : Analytical modeling and experimental validation", Composite Structures, 98, pp.24~33 (2013)
- 황규완, "적층각도가 적용된 ModeⅠCFRP 시험편의 피로특성 연구", 한국기계기술학회지, 18(3), pp.405~410 (2016), 한국기계기술학회