Elevated temperature material properties of cold-formed steel hollow sections

Journal article


McCann, F, Gardner, L and Kirk, S (2015). Elevated temperature material properties of cold-formed steel hollow sections. Thin-Walled Structures. 90, pp. 84-94.
AuthorsMcCann, F, Gardner, L and Kirk, S
Abstract

Elevated temperature material tests on cold-formed steel coupons cut from circular, rectangular and square hollow sections have been conducted, including both steady-state and transient-state tests. The experimental apparatus, methods of testing and results obtained are fully described. Temperature dependent retention factors for stiffness, strength and ductility were determined and compared to those provided in the European Standard EN 1993-1-2:2005 and the Australian Standard AS 4100:1998. It was found that the codified retention factors, despite being derived on the basis of tests on hot-finished material, are also applicable to cold-formed hollow sections. A design proposal from the literature for the prediction of ultimate strain has been also shown to be suitable for application to cold-formed hollow sections. A new expression for predicting strain at fracture has been proposed that provides a lower bound estimate of the test results derived in the current study.

Year2015
JournalThin-Walled Structures
Journal citation90, pp. 84-94
PublisherElsevier
Digital Object Identifier (DOI)doi:10.1016/j.tws.2015.01.007
Publication dates
Print30 Jan 2015
Publication process dates
Deposited05 Jul 2017
Accepted07 Jan 2015
Accepted author manuscript
License
CC BY-NC-ND 4.0
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https://openresearch.lsbu.ac.uk/item/87723

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