Experimental Support for Generalized Equation Predicting Low Cycle Fatigue

[+] Author and Article Information
J. F. Tavernelli, L. F. Coffin

General Electric Company, Research Laboratory, Schenectady, N. Y.

J. Basic Eng 84(4), 533-537 (Dec 01, 1962) (5 pages) doi:10.1115/1.3658701 History: Received August 15, 1961; Online November 04, 2011


Experimental data from cyclic strain fatigue tests on twelve structural materials are compared on the basis of a low cycle fatigue equation as suggested by an ASME task group. This equation

S = Ec2N1/2 + Se
where Se is the endurance limit, E the modulus of elasticity, N the cycles to failure, and c a constant derived from reported values of reduction in area, gives the stress amplitude S for comparison with elastically computed stresses. A satisfactory or good correlation with experiments for up to 105 cycles of failure is found.

Copyright © 1962 by ASME
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