STP1236

    Behavior of Fatigue Cracks in a Tension Bolt

    Published: Jan 1995


      Format Pages Price  
    PDF Version (372K) 15 $25   ADD TO CART
    Complete Source PDF (4.4M) 15 $76   ADD TO CART


    Abstract

    A state-of-the-art review of the characteristics of crack growth in a tension bolt has been conducted. Considerations are centered on evaluating the usefulness of the existing stress intensity factors in making fatigue crack growth predictions. The closed-form stress intensity expression of Forman and Shivakumar (for an unnotched round bar) has been validated by making correlations with three sets of experimental data available in the literature. while the James-Mills equation (for a threaded round bar) matches the finite element solutions, the results of the analytical/experimental correlations indicate that an empirical equation, i.e., Eq 9, which was derived from this study, may be used to obtain acceptable life predications.

    Keywords:

    tension bolt, threaded cylinder, stress intensity factor, fatigue crack, crack shape, crack growth, metal


    Author Information:

    Liu, AF
    Senior engineering specialist, Durability and Damage Tolerance, Rockwell International, Seal Beach, CA


    Paper ID: STP13051S

    Committee/Subcommittee: E08.06

    DOI: 10.1520/STP13051S


    CrossRef ASTM International is a member of CrossRef.