Strength Factors of Steels: A Graphical Method of Correlating Ultimate Tensile Strength, Proof Stress, Brinell and Izod Figures
Aircraft Engineering and Aerospace Technology
Article publication date: 1 November 1943
WHILE considering the specification requirements of various steels, the possibility of graphically correlating the main factors occurred to the writer. At the first attempt, a correlation of ultimate tensile strengths with proof stresses produced, graphically, a sort of hyperbola; at the second attempt, by changing the vertical and horizontal scales, and working to average figures, the graph took the form of a straight line ending in a hyperbolic curve; at the third attempt the graph became a straight line with plotted points not exactly coincidental with the line; the fourth attempt produced the U.T.S./Proof Stress “curve” which is the subject of this paper.
Fitzgerald‐Lee, G. (1943), "Strength Factors of Steels: A Graphical Method of Correlating Ultimate Tensile Strength, Proof Stress, Brinell and Izod Figures", Aircraft Engineering and Aerospace Technology, Vol. 15 No. 11, pp. 334-336. https://doi.org/10.1108/eb031073
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