Volume 3, Issue 4 (July 1975)

    A New Method of Detecting Fatigue Crack Propagation in Ferromagnetic Specimens

    CODEN: JTEOAD

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    Abstract

    This paper describes a new method for detecting fatigue crack growth in ferromagnetic specimens. This method is similar to the Barkhausen effect type of measurement, where discontinuous voltage pulses are induced in a pickup coil surrounding a specimen when the specimen is magnetized slowly. As a fatigue crack grows, similar voltage pulses are generated. Simultaneous display of the Barkhausen-type magnetic signals and the acoustic emission signals during fatigue crack propagation show that they are correlated.


    Author Information:

    Bhattacharya, S
    Research assistant and professor, Syracuse University, Syracuse, N.Y.

    Schröder, K
    Research assistant and professor, Syracuse University, Syracuse, N.Y.


    Stock #: JTE10657J

    ISSN: 0090-3973

    DOI: 10.1520/JTE10657J

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    Author
    Title A New Method of Detecting Fatigue Crack Propagation in Ferromagnetic Specimens
    Symposium , 0000-00-00
    Committee E08