Behaviour of stainless steel plain channel section columns

In this paper, the structural stability of cold-formed stainless steel plain channel columns under axial compression is investigated. Reliable finite element models for channel section columns are first developed and validated against experiments conducted on stainless steel lipped channel specimens...

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Main Authors: Dobrić, J, Ivanović, J, Rossi, B
Format: Journal article
Jezik:English
Izdano: Elsevier 2020
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author Dobrić, J
Ivanović, J
Rossi, B
author_facet Dobrić, J
Ivanović, J
Rossi, B
author_sort Dobrić, J
collection OXFORD
description In this paper, the structural stability of cold-formed stainless steel plain channel columns under axial compression is investigated. Reliable finite element models for channel section columns are first developed and validated against experiments conducted on stainless steel lipped channel specimens. This is followed by a parametric study in which columns made of austenitic, ferritic and duplex stainless steel are assessed. The considered cross-section classes and column lengths cover the entire range of global slenderness. The effects of material and geometrical nonlinearity are considered in the numerical analysis. The numerically generated data are then employed to evaluate the accuracy of the current European and Australian design codes EN 1993-1-4 and AS/NZS 4673 respectively, for predicting the flexural and flexural-torsional column buckling resistance. The results show a necessity to improve the current buckling curve used to predict the flexural buckling resistance of plain channel section columns, currently adopted in EN 1993-1-4, whose use may lead to unsafe predictions, especially for the austenitic grade.
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spelling oxford-uuid:e73be0d4-1c8a-48f8-b210-968ae9ee5a042022-03-27T10:37:01ZBehaviour of stainless steel plain channel section columnsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e73be0d4-1c8a-48f8-b210-968ae9ee5a04EnglishSymplectic ElementsElsevier2020Dobrić, JIvanović, JRossi, BIn this paper, the structural stability of cold-formed stainless steel plain channel columns under axial compression is investigated. Reliable finite element models for channel section columns are first developed and validated against experiments conducted on stainless steel lipped channel specimens. This is followed by a parametric study in which columns made of austenitic, ferritic and duplex stainless steel are assessed. The considered cross-section classes and column lengths cover the entire range of global slenderness. The effects of material and geometrical nonlinearity are considered in the numerical analysis. The numerically generated data are then employed to evaluate the accuracy of the current European and Australian design codes EN 1993-1-4 and AS/NZS 4673 respectively, for predicting the flexural and flexural-torsional column buckling resistance. The results show a necessity to improve the current buckling curve used to predict the flexural buckling resistance of plain channel section columns, currently adopted in EN 1993-1-4, whose use may lead to unsafe predictions, especially for the austenitic grade.
spellingShingle Dobrić, J
Ivanović, J
Rossi, B
Behaviour of stainless steel plain channel section columns
title Behaviour of stainless steel plain channel section columns
title_full Behaviour of stainless steel plain channel section columns
title_fullStr Behaviour of stainless steel plain channel section columns
title_full_unstemmed Behaviour of stainless steel plain channel section columns
title_short Behaviour of stainless steel plain channel section columns
title_sort behaviour of stainless steel plain channel section columns
work_keys_str_mv AT dobricj behaviourofstainlesssteelplainchannelsectioncolumns
AT ivanovicj behaviourofstainlesssteelplainchannelsectioncolumns
AT rossib behaviourofstainlesssteelplainchannelsectioncolumns