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

Authors :
Vieira, R.F.
Virtuoso, F.B.E.
Pereira, E.B.R.
Source :
Computers & Structures. Feb2017, Vol. 180, p104-116. 13p.
Publication Year :
2017

Abstract

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. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00457949
Volume :
180
Database :
Academic Search Index
Journal :
Computers & Structures
Publication Type :
Academic Journal
Accession number :
120523673
Full Text :
https://doi.org/10.1016/j.compstruc.2016.01.005