http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김주헌(Ju Hun Kim),이은택(Eun Taik Lee),김덕재(Duck Jae Kim) 한국강구조학회 1995 韓國鋼構造學會誌 Vol.7 No.2
Based on the existence of a yield surface and a bound surface which represents the maximum stress state the material ever experienced, a plasticity model is modified to describe the behaviour of metal under nonproportional loadings. This paper is concered with the improvement of a plasticity model of the two surface type for structural steel based on experimentally observed features of 304 stainless steel specimens tested under axial torsional cyclic nonproportional loading condition at room temperature performed by Medowell. The proposed model is verified through an experimental program that includes different combinations of nonproportionally applied forces performed by Lee.
반복하중에 의한 철골부재의 소성힌지 거동에 관한 실험적 연구
이은택(Eun Taik Lee),김덕재(Duck Jae Kim) 한국강구조학회 1993 韓國鋼構造學會誌 Vol.5 No.2
Most research studies on inelastic material behavior of steel structures under earthquake ground motions are concentrated on general uniaxial cyclic loading conditions. Very limited attention has been given to the responses of structures subjected multiaxial and nonproportional loading condition. The primary objectives of these experiments are to obtain quantitative information on the cyclic and nonproportional loading behavior of wide-flanged A-36 structural steel, and to substantiate a plasticity model to describe the material behavior under severe earthquake loading condition by using a computer-controlled testing system. The response of W-shaped A-36 structural steel specimens subjected to selected pure bending, pure bending with constant axial loads, and the random nonproportional loadings are examined.
이은택(Lee Eun-Taik),이용제(Lee Yong-Jae),심현주(Shim Hyun-Ju),장경호(Chang Kyong-Ho) 대한건축학회 2003 大韓建築學會論文集 : 構造系 Vol.19 No.11
Many researches have been performed to describe the elastic and inelastic behavior of H-shaped beams with web openings, and were generally concentrated on the monotonic loading conditions. In this experimental study, local buckling behaviour of welded light H-shaped beams with web openings under cyclic loading were investigated, and the adequacy of design method of web openings beams proposed by Darwin was examined. The commencement and the effect of local buckling, the strength and stiffness deterioration after local buckling, and the fracture around the web openings under cyclic loading condition were also investigated through the observation of the test results with various openings with or without stiffeners.