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강신유(S. Y. Kang),한동철(D. C. Han) 한국자동차공학회 1993 한국 자동차공학회논문집 Vol.1 No.2
In this paper, dynamic collapse behavior of the rectangular tube under impact loading is analyzed using nonlinear finite element method of shell element. In case of shell element formulation using corotational element coordinates system, dynamic collapse behavior is analyzed without initial imperfection, and with initial imperfection. This paper reveals that the collapse of a rectangular tube without initial imperfection is caused by an error of transformation of the corotational coordinates system.<br/>
강신유(S. Y. Kang),장인배(B. S. Chang),김헌영(H. Y. Kim) 한국자동차공학회 1998 한국 자동차공학회논문집 Vol.6 No.1
A 4-point pure bending test machine is developed to evaluate the pure bending moment-rota-tion properties of the thin-walled tubes without imposing shear and tensile forces. The moment-ro-tation properties of the thin-walled tubes are measured up to and beyond bending collapse with the pure bending test machine. The test results are compared with those of finite element analyses and existing analytical solution.
비선형 스프링-보 요소를 이용한 차체 모델링 및 충돌해석
강신유(S.Y.Kang),김흥수(H.S.Kim),이인혁(I.H.Lee),한동철(D.C.Han) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.11_1
Modelling and crashworthiness analysis of simplified vehicle structures with Beam element and Nonlinear Spring to which axial and bending collapse mechanism are applied are carried out. And on the basis of these analysis, Two types of Full car modelling and crashworthiness analysis with Nonlinear spring and Beam element are accomplished. The One is the Full car model of which 30% of the structures are modelled with Nonlinear spring and Beam element, and the other 75% of whole structures. And the results are compared with those of Full car analysis with Shell element.<br/>
알루미늄 압출부재의 굽힘붕괴식 산출 및 실험, 해석에 관한 연구
강신유(S.Y.Kang),서성수(S.S.Seo),최재환(J.H.Chio),조원준(W.J.Cho) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.11_2
In this paper. the analytical equation of predicting the bending collapse characteristics of aluminum extrusion members is derived. The results of the equation are compared with the ones of experiment. finite element analysis. and existing analytical equation. In cases of delayed buckling and tension failure. the derived equation represents the moment-angle curves better than Kecman's equation.