STP590

    Stress Intensity Factor of a Corner Crack

    Published: Jan 1976


      Format Pages Price  
    PDF (264K) 19 $25   ADD TO CART
    Complete Source PDF (8.6M) 19 $151   ADD TO CART


    Abstract

    The alternating method for elliptical crack analysis, which is based on the combined use of a pressurized crack solution and a free surface solution, has been limited in its application due to convergence difficulties in the iteration process. By prescribing appropriate fictitious pressure on the elliptical crack surface, which protrudes into the free space, numerical convergence of the iteration was improved. As a result, the pressurized crack solution involving a third-order polynomial pressure distribution with limited use was extended to part-elliptical problems. The improved alternating procedure is then used to determine stress intensity factors in corner flaws with aspect ratios of a/b = 0.98, 0.4, and 0.2 and subjected to uniform or linearly varying pressure distributions.

    Keywords:

    crack propagation, stress analysis, mechanical properties, fracture properties


    Author Information:

    Kobayashi, AS
    Professor and formerly graduate student, University of Washington, Seattle, Wash.

    Enetanya, AN
    Professor and formerly graduate student, University of Washington, Seattle, Wash.


    Paper ID: STP33963S

    Committee/Subcommittee: E08.06

    DOI: 10.1520/STP33963S


    CrossRef ASTM International is a member of CrossRef.