Inclusion of probability of detection (POD) and probability of recognition (POR) of flaws in characterization of nondestructive inspection (NDI) reliability is considered. Possible measures for this characterization are discussed using inspection results of a test specimen population of 200 identical 4340 steel aircraft landing gear components rejected from service because of crack indications or exceedance of the safe service life. It is concluded that it is doubtful whether the discussed parameters give an appropriate measure of NDI reliability; it is recommended to establish minimum values for the POD and POR at a specified confidence level.


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    Title :

    Quadrinomial Distribution for the Characterization of Nondestructive Inspection (NDI) Reliability


    Contributors:
    J. H. Heida (author)

    Publication date :

    1984


    Size :

    17 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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