The capability of an ultrasonic inspection technique to detect separation at the case-liner and liner-propellant interfaces is described. It is reported that the ultrasonic multiple reflection method now being used in factories, is most effective in detecting cas-liner separation, but is not very effective in detecting liner-propellant separation. As a result of experiments using rocket models, it is found that a multiple reflection method is capable of detecting not only case-liner separation but also liner-propellant separation if a continuously variable frequency oscillator is used and the reflectograms are analyzed considering interference. (Author)


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    Title :

    On the Ultrasonic Inspection of Separation in Solid Propellant Rocket Motors


    Contributors:
    M. Shimizu (author) / Y. Noguchi (author) / T. Tanemura (author)

    Publication date :

    1972


    Size :

    21 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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