Volume 1, Issue 3 (May 1973)

    Residual Stress Measurement and Analysis Using Ultrasonic Techniques


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    A technique which utilizes ultrasonic rediation has been developed to measure residual stresses in metals. This technique makes it possible to detect and measure the magnitude of the principle stresses and also to obtain their direction. The velocities of ultrasonic waves in materials are measured as the time to travel a fixed path length, and the change in transit time is related to the applied stress. The linear relationship obtained allows a procedure based on this principle to be used for the measurement of residual stress using surface waves and shear waves. A method for plotting stress profiles through a material using surface waves uses varying frequencies for the ultrasonic wave. A limitation of the shear wave method is considered. The system used for this technique is called the Modified Time of Flight System.

    Author Information:

    Noronha, PJ
    Doctoral candidate, Vanderbilt University, Nashville, Tenn.

    Chapman, JR
    Engineer, Bonitron, Inc., Nashville, Tenn.

    Wert, JJ
    Head, Division of Materials, Mechanics, and Structures, Vanderbilt University, Nashville, Tenn.

    Stock #: JTE10005J

    ISSN: 0090-3973

    DOI: 10.1520/JTE10005J

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    Title Residual Stress Measurement and Analysis Using Ultrasonic Techniques
    Symposium , 0000-00-00
    Committee E07