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The continuous strength method for the design of aluminium alloy structural elements
File(s)
Author(s)
Su, M-N
Young, B
Gardner, L
Type
Journal Article
Abstract
Aluminium alloys are nonlinear metallic materials with rounded stress–strain curves that are not well represented by the simplified elastic-perfectly plastic material model used in most existing design specifications. Departing from current practice, the continuous strength method (CSM) is a recently developed design approach for aluminium alloy structures, which gives consideration to strain hardening for non-slender sections. The CSM is a deformation-based method and employs a base curve to define the continuous relationship between cross-section slenderness and deformation capacity. This paper explains the background and the two key components of the CSM: (1) the base curve, which is extended herein such that the method covers both non-slender and slender sections and (2) the strain hardening material model. Three international design specifications from America, Australia/New Zealand and Europe, as well as the CSM are compared with approximately 900 aluminium alloy experimental and numerical results. Reliability analyses have been carried out to assess the reliability level of different design methods according to both the American Institute of Steel Construction (AISC) and European Standard (EN 1990) approaches. Finally, worked examples of the CSM for aluminium alloy stub columns and continuous beams are illustrated in this paper.
Date Issued
2016-06-09
Date Acceptance
2016-04-19
Citation
Engineering Structures, 2016, 122, pp.338-348
URI
DOI
ISSN
1873-7323
Publisher
Elsevier
Start Page
338
End Page
348
Journal / Book Title
Engineering Structures
Volume
122
Copyright Statement
© 2016 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Subjects
Science & Technology
Technology
Engineering, Civil
Engineering
Aluminium alloys
Base curve
Columns
Continuous beams
Continuous strength method (CSM)
Reliability analyses
Simply supported beams
Strain hardening
Structural design
STAINLESS-STEEL DESIGN
MEMBERS
COMPRESSION
BEHAVIOR
BEAMS
Civil Engineering
0905 Civil Engineering
Publication Status
Accepted