Research Article
Feb 1974
Steel Ductility Measurements
Publication: Journal of the Structural Division
Volume 100, Issue 2
Abstract
Ductility is essential for the fabrication and adequate performance of cold-formed steel structures. For defining safe minimum values of ductility, it is first necessary to develop reliable ductility measurements. It is shown that the usual percent elongation in a 2-in. gage length of a standard rectangular coupon is not a consistent measure of ductility and that reduction in area is difficult to measure for sheet and strip steel specimens. Distinction is made between uniform elongation observed in a specimen over a length outside the fracture zone, and local elongation measured over a short length across the fracture. The separate and complementary roles of uniform and local ductility are presented. Several measures for these two distinct properties are described. Two methods for separately measuring uniform and local ductility by minor modifications of the standard ASTM tension test are proposed.
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Published In
Journal of the Structural Division
Volume 100 • Issue 2 • February 1974
Pages: 427 - 444
Copyright
© 1974 American Society of Civil Engineers.
History
Published in print: Feb 1974
Published online: Feb 1, 2021
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Asfandiar K. Dhalla
Research Center, Foster Wheeler Corp., Livingston, N.J.; formerly Research Asst., Dept. of Struct. Engrg., Cornell Univ., Ithaca, N.Y.
George Winter, HM.ASCE
Prof. of Engrg. (Class of 1912 Chair), Cornell Univ., Ithaca, N.Y.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.