Elastic buckling analysis of thin-walled structural members with rectangular holes using generalized beam theory

被引：39

作者：

Cai, Junle ^{[1
]}

Moen, Cristopher D. ^{[2
]}

机构：

[1] VirginiaTech, Dept Civil & Environm Engn, 200 Patton Hall, Blacksburg, VA 24061 USA

[2] VirginiaTech, Dept Civil & Environm Engn, 102-C Patton Hall, Blacksburg, VA 24061 USA

来源：

THIN-WALLED STRUCTURES | 2016年 / 107卷

关键词：

Thin-walled structures; Elastic buckling; Perforations; Holes; Generalized beam theory; COLUMNS; IDENTIFICATION; DESIGN; GBT;

D O I：

10.1016/j.tws.2016.06.014

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents a method to perform generalized beam theory buckling analysis on thin-walled structural members with holes. Generalized beam theory (GBT) is an ideal tool for analyzing thin-walled structures because it can directly compute buckling mode participation in an eigen-buckling analysis. The GBT extension to members with holes is made by treating a thin-walled structural member as an assembly of prismatic sub-members, and compatibility constraints on the GBT modal amplitudes are introduced to connect these sub-members. GBT shear modes with nonlinear warping deformation are included in both first order and buckling analyses to account for the nonlinear normal stress distribution in the vicinity of a hole. GBT buckling mode shapes are verified with shell finite element analysis (SFEA) in three examples that highlight the potential for quantitatively documenting buckling modes initiated by the presence of holes. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：274 / 286

页数：13

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