A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Local buckling behaviour of thin-walled members with curved cross-section parts
AbstractIn this paper the buckling behaviour of thin-walled members with cross-sections with curved parts is investigated. Due to the curved parts, shell-like buckling is a potential mode of failure. The objective of the research is to understand whether shell-like buckling behaviour might be governing in practical cold-formed steel members. For this aim, numerical studies have been carried out, involving linear buckling analysis as well as nonlinear shell finite element analysis with imperfections, by considering a large number of various cross-sections. Standardized capacity prediction has also been completed, based on elastic critical loads by using the direct strength method, and the results have been compared to that of shell finite element analyses. Based on the results it is concluded that shell-like behaviour might be critical in certain cases, but only in case of unusual cross-section geometries. It was also found that the simple direct strength capacity prediction can reasonably be used in most of the cases.
HighlightsThin-walled steel members with curved cross-sections are analysed.The basic question is whether shell-like failure of the cylindrical parts is possible.Non-linear finite element analyses are completed on sections with various corner radii.The sensitivity of the members to various geometrical imperfections is studied.The finite element capacity predictions are compared to results of design codes.
Local buckling behaviour of thin-walled members with curved cross-section parts
AbstractIn this paper the buckling behaviour of thin-walled members with cross-sections with curved parts is investigated. Due to the curved parts, shell-like buckling is a potential mode of failure. The objective of the research is to understand whether shell-like buckling behaviour might be governing in practical cold-formed steel members. For this aim, numerical studies have been carried out, involving linear buckling analysis as well as nonlinear shell finite element analysis with imperfections, by considering a large number of various cross-sections. Standardized capacity prediction has also been completed, based on elastic critical loads by using the direct strength method, and the results have been compared to that of shell finite element analyses. Based on the results it is concluded that shell-like behaviour might be critical in certain cases, but only in case of unusual cross-section geometries. It was also found that the simple direct strength capacity prediction can reasonably be used in most of the cases.
HighlightsThin-walled steel members with curved cross-sections are analysed.The basic question is whether shell-like failure of the cylindrical parts is possible.Non-linear finite element analyses are completed on sections with various corner radii.The sensitivity of the members to various geometrical imperfections is studied.The finite element capacity predictions are compared to results of design codes.
Local buckling behaviour of thin-walled members with curved cross-section parts
Jobbágy, Dávid (author) / Ádány, Sándor (author)
Thin-Walled Structures ; 115 ; 264-276
2017-02-23
13 pages
Article (Journal)
Electronic Resource
English
Interactive and local buckling of thin-walled members
| Elsevier | 1990
Local buckling of thin-walled girders of triangular cross-section
| Elsevier | 1988
Buckling of thin-walled I-section laminated composite curved beams
| Elsevier | 2020
Buckling Behaviour of FRP Thin-Walled Lipped Channel Members
| British Library Conference Proceedings | 2001