Deformation-based design of aluminium alloy beams

Title: Deformation-based design of aluminium alloy beams
Authors: Su, M-N
Young, B
Gardner, L
Item Type: Journal Article
Abstract: Two series of simply supported bending tests on aluminium alloy square and rectangular hollow sections have been performed. The test program comprised 14 three-point bending tests and 15 four-point bending tests. The test specimens were fabricated by extrusion from grades 6061-T6 and 6063-T5 heat-treated aluminium alloys, with width-to-thickness ratios ranging from 2.8 to 20.5. Measured geometric and material properties, together with the full load–deflection histories from the test specimens, were reported. Observed failure modes included local buckling, material yielding and tensile fracture. Further experimental data were gathered from the literature. Finite element (FE) models were developed and validated against the test results, and then used to perform parametric studies, in which a total of 132 numerical results were generated. The experimental and numerical results were used to evaluate the bending resistance provisions of the American [1], Australian/New Zealand [2] and European [3] Specifications, as well as the continuous strength method (CSM). The moment capacities predicted by the three design specifications were found to be generally conservative, while the CSM provided more accurate and more consistent predictions due to the recognition and systematic exploitation of strain hardening.
Issue Date: 28-Sep-2014
Date of Acceptance: 21-Aug-2014
URI: http://hdl.handle.net/10044/1/38984
DOI: http://dx.doi.org/10.1016/j.engstruct.2014.08.034
ISSN: 1873-7323
Publisher: Elsevier
Start Page: 339
End Page: 349
Journal / Book Title: Engineering Structures
Volume: 80
Copyright Statement: © 2014 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
Aluminium alloys
Bending moment capacities
Continuous strength method
Experimental investigation
Flexure
I-sections
Numerical analysis
Simply supported beams
Square and rectangular hollow sections
Structural design
CROSS-SECTIONAL CLASSIFICATION
CONTINUOUS STRENGTH METHOD
ROTATIONAL CAPACITY
HOLLOW SECTIONS
MOMENT GRADIENT
BEHAVIOR
MEMBERS
Civil Engineering
0905 Civil Engineering
Publication Status: Published
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering



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