An experimental investigation of the behavior of 24S-T4 aluminum alloy subjected to repeated stresses of constant and varying amplitudes

Herbert F. Hardrath, Elmer C. Utley, Jr.
naca-tn-2798
Oct 1952


A device for adapting R. R. Moore rotating-beam fatigue testing machines for tests in which the amplitude of stress is continuously varied is described. Tests of 24S-T4 aluminum-alloy specimens subjected to stresses of constant amplitude and to stresses with amplitudes varying according to sinusoidal and exponential functions are reported.

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