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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    Titel :

    On the Ultrasonic Inspection of Separation in Solid Propellant Rocket Motors


    Beteiligte:
    M. Shimizu (Autor:in) / Y. Noguchi (Autor:in) / T. Tanemura (Autor:in)

    Erscheinungsdatum :

    1972


    Format / Umfang :

    21 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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