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Compression resistance of aluminium stub columns using Continuous Strength Method

conference contribution
posted on 2010-01-01, 00:00 authored by Mahmud AshrafMahmud Ashraf, B Young
Aluminium members are getting more popular in structural applications due to their high strength-to-weight ratio, corrosion resistance, attractive appearance, recyclability, ease of production and availability. The elastic modulus of aluminium, however, is only a third of ordinary steel, makes it vulnerable to excessive deflection. Thin sections are susceptible to local buckling at a relatively low stress and welding makes it even worse; the design stress i.e. 0.2% proof stress is almost halved in the vicinity of Heat Affected Zones (HAZ). Currently available design Codes have their guidelines both for welded and non-welded aluminium columns, which seem to produce conservative predictions for aluminium cross-sections subjected to compression. The current research aims to exploit a newly developed strain based design approach 'Continuous Strength Method (CSM)' to predict the behaviour of aluminium tubular cross-sections subjected to compression. This paper also explores the applicability of CSM to include the effects of HAZ.

History

Pagination

257-263

Location

Hong Kong, China

Start date

2010-12-15

End date

2010-12-17

ISBN-13

9780415584739

Language

eng

Publication classification

E1.1 Full written paper - refereed

Editor/Contributor(s)

Young B

Title of proceedings

Proceedings of the 13th International Symposium on Tubular Structures

Event

Tubular Structures. International Symposium (13th : 2010 : Hong Kong, China)

Publisher

CRC Press

Place of publication

Boca Raton, Florida

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