Energy Method in Efficient Estimation of Elastic （能量法在弹性的有效估计）.pdfVIP

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Energy Method in Efficient Estimation of Elastic （能量法在弹性的有效估计）.pdf

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Energy Method in Efficient Estimation of Elastic （能量法在弹性的有效估计）

Energy Method in Efficient Estimation of Elastic Buckling Critical Load of Axially Loaded Three-Segment Stepped Nebojša Zdravković Column Teaching Assistant University of Kragujevac Faculty of Mechanical Engineering Kraljevo This paper treats the elastic stability of three-segment stepped column that is subjected to axial concentrated compressive forces using the strain Milomir Gašić energy method. Efforts have been made to establish the methodology for Professor the development of a model that is useful for quick, yet quite accurate, University of Kragujevac Faculty of Mechanical Engineering Kraljevo estimation of the elastic buckling critical load. By using the load, segments stiffness and lengths ratios, the dimensionless influence coefficient is Mile Savković defined for any combination of parameters. The diagrams of critical load Associate Professor based on geometric parameters variation are given. The results of University of Kragujevac Faculty of Mechanical Engineering Kraljevo analytical model are compared with numerical results obtained from finite element method. Within two investigation regimes, influences of bending