An ultrasonic probe has been designed, evaluated and shown capable of measuring longitudinal stress changes in railroad rails. The probe uses the effect of applied stress on wave velocity (acoustoelastic effect) to determine the stress change. Both laboratory and field evaluation has shown that the probe is capable of measuring stress changes with an accuracy of plus or minus 6.9 MN/sq m (plus or minus 1 ksi).


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    Title :

    Nondestructive Measurement of Longitudinal Rail Stresses: Application of the Acoustoelastic Effect to Rail Stress Measurement


    Contributors:
    D. M. Egle (author) / D. E. Bray (author)

    Publication date :

    1978


    Size :

    124 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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