Buckling of thin-walled structures through a higher order beam model

被引：25

作者：

Vieira, R. F. ^{[1
]}

Virtuoso, F. B. E. ^{[1
]}

Pereira, E. B. R. ^{[1
]}

机构：

[1] Univ Lisbon, Inst Super Tecn, CERIS, Av Rovisco Pais, P-1049001 Lisbon, Portugal

来源：

COMPUTERS & STRUCTURES | 2017年 / 180卷

关键词：

Thin-walled structures; Higher order beam model; Higher order effects; Warping; Distortion; Local buckling; FINITE STRIP METHOD; WARPING FUNCTION; CLOSED BEAMS; ELEMENT; MEMBERS; GBT; SHEAR;

D O I：

10.1016/j.compstruc.2016.01.005

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A higher order beam model for the buckling analysis of thin-walled structures is presented in this paper. The model considers an enrichment of the displacement field so as to accurately represent the three-dimensional behaviour of thin-walled structures. The definition of an uncoupled set of deformation modes allows a meaningful definition of hierarchical higher order solutions, which are useful for the linear buckling analysis of thin-walled structures. A criterion for the definition of local and global buckling modes, as well as possible interaction between modes is put forward. A comparison between the results obtained with the higher order beam model and results obtained from a shell finite element model implemented in Abaqus allows to conclude not only the efficiency of the beam model but also its simplicity of use. (C) 2016 Civil-Comp Ltd and Elsevier Ltd.

引用

页码：104 / 116

页数：13

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