Flexural behaviour of stainless steel oval hollow sections

Title: Flexural behaviour of stainless steel oval hollow sections
Authors: Theofanous, M
Chan, TM
Gardner, L
Item Type: Journal Article
Abstract: Structural hollow sections are predominantly square, rectangular or circular in profile. While square and circular hollow sections are often the most effective in resisting axial loads, rectangular hollow sections, with greater stiffness about one principal axis than the other, are generally more suitable in bending. Oval or elliptical hollow sections (EHS) combine the aesthetic external profile of circular hollow sections with the suitability for resisting flexure of rectangular sections, whilst also retaining the inherent torsional stiffness offered by all tubular sections. This paper examines the structural response of recently introduced stainless steel oval hollow sections (OHS) in bending and presents design recommendations. In-plane bending tests in the three-point configuration about both the major and minor axes were conducted. All tested specimens were cold-formed from Grade 1.4401 stainless steel and had an aspect ratio of approximately 1.5. The full moment-rotation responses of the specimens were recorded and have been presented herein. The tests were replicated numerically by means of non-linear finite element (FE) analysis and parametric studies were performed to investigate the influence of key parameters, such as the aspect ratio and the cross-section slenderness, on the flexural response. Based on both the experimental and numerical results, structural design recommendations for stainless steel OHS in bending in accordance with Eurocode 3: Part 1.4 have been made.
Issue Date: 20-Feb-2009
Date of Acceptance: 6-Jan-2009
URI: http://hdl.handle.net/10044/1/52193
DOI: https://dx.doi.org/10.1016/j.tws.2009.01.001
ISSN: 0263-8231
Publisher: Elsevier
Start Page: 776
End Page: 787
Journal / Book Title: Thin-Walled Structures
Volume: 47
Issue: 6-7
Copyright Statement: © 2009 Elsevier Ltd. All rights reserved. This manuscript is 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
ENGINEERING, CIVIL
Beam
Bending
Cross-section
Elliptical
Experiments
Finite element
Hollow section
Numerical modelling
Oval
Stainless steel
Structural testing
Tubular construction
GEOMETRIC IMPERFECTIONS
SLENDERNESS LIMITS
STRUCTURAL DESIGN
TUBULAR MEMBERS
STRENGTH
BEAMS
TUBES
COMPRESSION
CONNECTIONS
RESISTANCE
0901 Aerospace Engineering
0905 Civil Engineering
0913 Mechanical Engineering
Civil Engineering
Publication Status: Published
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering



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