Structural performance of stainless steel circular hollow sections under combined axial load and bending - Part 1: Experiments and numerical modelling

Title: Structural performance of stainless steel circular hollow sections under combined axial load and bending - Part 1: Experiments and numerical modelling
Authors: Zhao, O
Gardner, L
Young, B
Item Type: Journal Article
Abstract: A comprehensive experimental and numerical investigation into the structural performance of stainless steel circular hollow sections (CHS) under combined compression and bending moment has been performed and is fully reported in the present paper and its companion paper. The experimental programme employed four CHS sizes made of austenitic stainless steel, and included material tensile coupon tests, four stub column tests and twenty combined loading tests. The initial loading eccentricities for the combined loading tests were varied to provide a wide range of bending moment-to-axial load ratios. In conjunction with the testing programme, a numerical modelling programme was performed to simulate the experiments. The developed FE models were shown to be capable of replicating the key test results, full experimental curves including the post-ultimate range and deformed failure modes. Upon validation of the FE models, a series of parametric studies were conducted in the companion paper, aiming at extending the current test data pool over a range of cross-section sizes and combinations of loading. The experimental data, together with the generated parametric study results, were analysed and employed to evaluate the applicability of the codified provisions given in the European code, American specification and Australia/New Zealand standard for design of CHS under combined loading. Improved design rules were also sought through extension of the deformation-based continuous strength method (CSM) to the case of stainless steel CHS under combined loading.
Issue Date: 19-Dec-2015
Date of Acceptance: 6-Dec-2015
URI: http://hdl.handle.net/10044/1/38992
DOI: http://dx.doi.org/10.1016/j.tws.2015.12.003
ISSN: 0263-8231
Publisher: Elsevier
Start Page: 231
End Page: 239
Journal / Book Title: Thin-Walled Structures
Volume: 101
Copyright Statement: © 2015 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Keywords: Science & Technology
Technology
Engineering, Civil
Engineering
Austenitic stainless steel
Cold-formed
Combined loading tests
Cross-sectional behaviour
Finite element analysis
Numerical modelling
Stub column tests
CONTINUOUS STRENGTH METHOD
TUBULAR MEMBERS
CROSS-SECTIONS
DEFORMATION CAPACITY
DESIGN
COMPRESSION
COLUMNS
BEHAVIOR
RESISTANCE
TUBES
Civil Engineering
0901 Aerospace Engineering
0905 Civil Engineering
0913 Mechanical Engineering
Publication Status: Published
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering



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