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이승식(Seung Sik Lee),채수하(Soo Ha Chae),윤순종(Soon Jong Yoon) 한국강구조학회 1997 韓國鋼構造學會誌 Vol.9 No.3
In this paper the finite element analysis results of the local buckling strength of thin walled open section columns composed of orthotropic plate components are presented. The GTSTRUDL SBHQ6 finite element which can account for the membrane force and plate bending behavior is adopted in the FEM analysis. FEM results were compared with the closed-form results obtained by the classical orthotropic plate theory. In the analysis interaction of plate components is taken into account. The difference between the results is in the range of 2.4∼10.8%
유한요소법에 의한 직교이방성 Box 형 박판기둥의 국부좌굴
정상균(Sang Kyoon Jeong),채수하(Soo Ha Chae),윤순종(Soon Jong Yoon) 한국강구조학회 1997 韓國鋼構造學會誌 Vol.9 No.3
Local buckling analysis of orthotropic thin-walled box section columns is performed by the finite element method (FEM). In the FEM analysis GTSTRUDL SBHQ6 element is utilized. The SBHQ6 element can account for the membrance force and plate bending effects. FEM results were compared with derived closed-form solution and the difference between the results were in the range of 4.2∼12.8%
김동홍(Dong Hong Kim),채수하(Soo Ha Chae),윤순종(Soon Jong Yoon),윤종열(Chong Yul Yoon),이원복(Won Bok Lee) 한국강구조학회 1996 韓國鋼構造學會誌 Vol.8 No.2
Elastic buckling behavior of an orthotropic plate with an intermediate stiffener, placed parallel to the longitudinal axis, is investigated. Non-dimensional closed-form solution that predicts the buckling strength and the effect of ratio of plate and stiffener widths on the buckling coefficients is developed. When the orthotropic material property in this solution is replaced by an isotropic material property, the result agrees with that obtained by Bulson. Parameter study shows the buckling coefficient of the plate is linearly proportional to the ratio of plate and stiffener widths in the range between 0.2 to 0.4.