The modulus of elasticity of steel - is it 200 GPa?
Mahendran, M. (1996) The modulus of elasticity of steel - is it 200 GPa? In Thirteenth International Specialty Conference on Cold-Formed Steel Structures, Missouri S&T (formerly the University of Missouri - Rolla), St. Louis, Missouri U.S.A., pp. 641-648.
In cold-formed steel construction, the use of a range of thin, high strength steels (0.35 mm thickness and 550 MPa yield stress) has increased significantly in recent times. A good knowledge of the basic mechanical properties of these steels is needed for a satisfactory use of them. In relation to the modulus of elasticity, the current practice is to assume it to be about 200 GPa for all steel grades. However, tensile tests of these steels have consistently shown that the modulus of elasticity varies with grade of steel and thickness. It was found that it increases to values as high as 240 GPa for smaller thicknesses and higher grades of steel. This paper discusses this topic, presents the tensile test results for a number of steel grades and thicknesses, and attempts to develop a relationship between modulus of elasticity, yield stress and thickness for the steel grades considered in this investigation.
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|Item Type:||Conference Paper|
|Additional Information:||Compilation and indexing terms, Copyright 2013 Elsevier Inc. 2004298265327 Cold-formed steels Design codes Steel racks|
|Keywords:||Steel, Approximation theory, Construction industry, Ductility, Elastic moduli, Elasticity, Forming, Strength of materials, Tensile strength, Tensile testing, Thickness measurement, Yield stress|
|Divisions:||Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Deposited On:||21 Nov 2013 00:55|
|Last Modified:||21 Nov 2013 00:55|
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