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적층각도를 지닌 CFRP 삼점굽힘 시험편에서의 좌굴복원특성에 관한 연구
황규완,Guiping Zhao,조재웅 한국기계기술학회 2016 한국기계기술학회 학술대회논문집 Vol.2016 No.10
In this study, the buckling restoration at CFRP 3-Point bending specimen composed of 30°, 45°and 60° is investigated when the pressure at the lowest position on the compressed specimen is eliminated. The fracture configuration and stress contour of the specimen can be seen according to the laminate angle of fiber. The result of this study is thought to apply the data for the safe design of CFRP structure.
관통형 고력볼트르 사용한 엔드플레이트형식 콘크리트 충전 각형강관 기둥ㆍH형강 보 접합부 패널의 전단성능
김재건,최창식 대진대학교 건설연구소 1999 건설공학논문집 Vol.2 No.-
This paper is to study on the evaluation of shear strength of CFT column to H-beam end plate connections with penetrated high-strength bolts under cyclic load. The main parameters are as follows; 1) the thickness of end plate: 16mm, 25mm, 2) the nominal bolt diameter: M20, M22. Comparison and analysis on the test results are performed in accordance with parameters. This study investigates shear strength in joint panel and makes modeling the relationship of stress -displacement of steel and concrete. The shear capacity of joint panel is estimated by superimposing the strength of the steel which is based on the von Mises yield criterion and that of the concrete which is used the Strut model to consider the effect of filled concrete.