The failure of thin-walled lipped channel compression members due to coupled local-distortional interactions and material yielding

被引：44
作者：
Loughlan, J. [1 ]
Yidris, N. [1 ,2 ]
Jones, K. [1 ]
机构：
[1] Univ Loughborough, Dept Aeronaut & Automot Engn, Loughborough, Leics, England
[2] Univ Putra Malaysia, Dept Aerosp Engn, Serdang, Malaysia
来源：
THIN-WALLED STRUCTURES | 2012年 / 61卷
关键词：
Finite element simulation; Lipped channel columns; Local buckling; Distortional buckling; Global flexural buckling; Coupled buckling; Local-distortional interaction; Post-local buckling; Material yielding; Geometric imperfections; Failure mechanics; BIFURCATION;
D O I：
10.1016/j.tws.2012.03.025
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper details appropriate finite element modelling strategies and procedures for the determination of the coupled local-distortional interactive response of thin-walled lipped channel sections. The modelling procedures are able to describe the complete loading history of the compression members from the onset of local buckling through post-local buckling behaviour leading to local-distortional interaction including material yielding and yield propagation to ultimate conditions and then to elasto-plastic unloading. The numerical simulations take due account of the influence of geometrical imperfections on the compressive ultimate failures of the sections and the results from the finite element models are shown to agree favourably with the ultimate loads and failure mechanisms from experimental tests on steel lipped channel sections exhibiting local-distortional interaction. (c) 2012 Elsevier Ltd. All rights reserved.
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页码：14 / 21
页数：8
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