The overall objective of this 2-year program was the development of a reliable nondestructive method of detecting cracks under installed fasteners, emphasizing improvement of the ultrasonic shear wave method. The program included the implementation of the developed method into a system suitable for on-line inspection of airplanes. The development effort proceeded in four main areas: ultrasonic fastener-hole scanning techniques, display of test information, identification of transducer requirements, and portable-scanner design.


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    Title :

    Detection of Cracks under Installed Fasteners


    Contributors:

    Publication date :

    1974


    Size :

    320 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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