Push-Pull Fatigue Strength of Mild Steel at Very High Frequencies of Stress Up to 100 kc/s

[+] Author and Article Information
M. Kikukawa, K. Ohji, K. Ogura

Department of Mechanical Engineering, Osaka University, Higashinoda, Osaka, Japan

J. Basic Eng 87(4), 857-864 (Dec 01, 1965) (8 pages) doi:10.1115/1.3650830 History: Received March 12, 1965; Online November 03, 2011


Previous investigations of frequency on fatigue strength are briefly reviewed in this paper. New resonant-type push-pull fatigue testing machines at 50 and 100 kc/s were also developed by using a ferrite magnetostrictive vibrator. By using these machines, as well as previously developed high and low-frequency push-pull fatigue testing machines, the influence of stress frequency on fatigue limit of two carbon steels was determined at frequencies ranging from 40 to 100,000 c/s. The fatigue limit was found to increase monotonically with increasing frequency. No peak in the value of the fatigue limit was observed at frequencies up to 100,000 c/s.

Copyright © 1965 by ASME
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