An Ultrasonic Method for Determining Axial Stress in Bolts

    Volume 14, Issue 5 (September 1986)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 7


    Johnson, GC
    University of California, Berkeley, CA

    Holt, AC
    JAG Industries, Trinidad, CA

    Cunningham, B
    JAG Industries, Trinidad, CA

    (Received 21 November 1985; accepted 21 March 1986)

    Abstract

    An ultrasonic technique for determining the axial stress within a bolt was developed and experimentally verified. The technique uses time-of-flight measurements of both shear and longitudinal waves propagating along the axis of a bolt along with the material parameters to calculate the stress acting on the bolt. One significant advantage of the technique is that an independent measurement of neither the original nor present length is required. Experimental results suggest that the method may be usable for fasteners which have experienced a small amount of plastic deformation.


    Paper ID: JTE10337J

    DOI: 10.1520/JTE10337J

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    Author
    Title An Ultrasonic Method for Determining Axial Stress in Bolts
    Symposium , 0000-00-00
    Committee E07