Volume 2, Issue 2 (March 1974)

    A Test Procedure for Determining the Influence of Stress Ratio on Fatigue Crack Growth

    CODEN: JTEOAD

      Format Pages Price  
    PDF Version 4 $25   ADD TO CART


    Abstract

    A test procedure is outlined by which the rate of fatigue crack growth over a range of stress ratios and stress intensities can be determined expeditiously using a small number of specimens. This procedure was developed to avoid or circumvent the effects of load interactions on fatigue crack growth, and was used to develop data on a mill annealed Ti-6Al-4V alloy plate. Experimental data suggest that the rates of fatigue crack growth among the various stress ratios may be correlated in terms of an effective stress intensity range, Δ Keff, at given values of Kmax.

    This procedure is not to be used, however, for determining the corrosion fatigue crack growth characteristics of alloys when non-steady-state effects are significant.


    Author Information:

    FitzGerald, JH
    Research analyst, Northrop Corp., Hawthorne, Calif.

    Wei, RP
    Professor of mechanics, Lehigh University, Bethlehem, Pa.


    Stock #: JTE10076J

    ISSN: 0090-3973

    DOI: 10.1520/JTE10076J

    ASTM International is a member of CrossRef.

    Author
    Title A Test Procedure for Determining the Influence of Stress Ratio on Fatigue Crack Growth
    Symposium , 0000-00-00
    Committee E08