Stress-Strain-Temperature Relationship for Structural Steel
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VIEW CORRECTIONPublication: Journal of Materials in Civil Engineering
Volume 13, Issue 5
Abstract
This paper presents a new mathematical relationship for representing the stress-strain behavior of structural steel at elevated temperatures. The relationship is constructed by fitting two versatile, continuous equations to experimental data. The first equation, a general stress-strain equation previously proposed by Poh, is used for characterizing the stress-strain data. The second equation is proposed in this paper. It is used for representing the variation of the stress-strain behavior with temperature. A simple two-stage procedure is used for fitting the equations to the experimental data. This gives a set of curve fitting coefficients that can be simply expressed in a matrix format. It is shown that the resulting relationship accurately represents the experimental data. Furthermore, since the relationship comprises only two equations and a coefficient matrix, it can be easily incorporated into computer analysis programs. It can also be readily used for establishing the properties of other steels.
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Information & Authors
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Published In
Journal of Materials in Civil Engineering
Volume 13 • Issue 5 • October 2001
Pages: 371 - 379
History
Received: Sep 27, 1999
Published online: Oct 1, 2001
Published in print: Oct 2001
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