ON THE MECHANICS OF ANGLE COLUMN INSTABILITY
This paper reports the results of a numerical investigation aimed at providing a fresh insight on the mechanics underlying the buckling and (mostly) post-buckling behaviour of short-to-intermediate equal-leg thin-walled angle steel columns exhibiting fixed and pinned (but with the warping prevented) end supports. Although most of the numerical results presented and discussed were obtained through ABAQUS shell finite element analyses, the paper also includes some GBT-based critical stresses and buckling mode shapes, whose interpretation helps to clarify the distinction between local and global buckling. The shell finite element results displayed consist of ( i ) elastic post-buckling equilibrium paths and ( ii ) curves and diagrams providing the evolution, along a given path, of the column deformed configurations and normal stress distributions.
Thin-walled columns equal-leg angles, buckling and post-buckling mechanics shell finite element analysis generalised beam theory (GBT)
P.B.Dinis D.Camotim N.Silvestre
Department of Civil Engineering and Architecture, ICIST, Instituto Superior Tecnico,Technical University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
国际会议
The IJSSD Symposium 2012 on Progress in Structural Stability and Dynamics(2012国际结构稳定与动力学进展会议)
南京
英文
17-26
2012-04-14（万方平台首次上网日期，不代表论文的发表时间）