Suggested Steel Ductility Requirements

by Asfandiar K. Dhalla, Res. Ctr., Foster Wheeler Corp., Livingston, NJ,
George Winter, (Hon.M.ASCE), Prof. of Engrg. (Class of 1912 Chair); Cornell Univ., Ithaca, NY,

Serial Information: Journal of the Structural Division, 1974, Vol. 100, Issue 2, Pg. 445-462

Document Type: Journal Paper


Test evidence is presented on the performance under tension of perforated plates, bolted connections and formability of corners, supplemented by an elastic-plastic analysis of perforated and notched plates, in order to arrive at suggested lower limits of structurally satisfactory ductility. For a crude identification of adequately ductile steels, it is suggested that a minimum conventional elongation in 2 minimum tensile 7% and a minimum tensile to yield strength ratio of 1.05 may serve as criteria. It is not maintained that steels with even lower ductility cannot be used structurally for particular applications and under adequate controls.

Subject Headings: Ultimate strength | Steel | Ductility | Elastic analysis | Tension members | Bolted connections | Structural steel | Structural control

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