Volume 8, Issue 5 (September 1980)

    Measuring JIc, and the Resistance to Crack Growth After Initiation

    CODEN: JTEOAD

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    Abstract

    A ductile fracture toughness (JIc) test that uses fracture specimens with finite differences in crack area is reviewed. Experimental results are given for Ti-6Al-4V, A471 Ni-Cr-Mo-V rotor steel, and 4140 high strength steel. Resistance to further crack propagation after initiation is discussed in terms of the tearing modulus, which is equal to dJ/dA, A being the crack area. A useful expression for the tearing modulus is given.


    Author Information:

    Early, PW
    Research assistant and professor, University of Rochester, Rochester, N.Y.

    Burns, SJ
    Research assistant and professor, University of Rochester, Rochester, N.Y.


    Stock #: JTE10615J

    ISSN: 0090-3973

    DOI: 10.1520/JTE10615J

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    Author
    Title Measuring JIc, and the Resistance to Crack Growth After Initiation
    Symposium , 0000-00-00
    Committee E08