TITLE

Probability of detection as a metric for quantifying NDE capability: the state of the art

AUTHOR(S)
Keprate, Arvind; Ratnayake, R. M. Chandima
PUB. DATE
September 2015
SOURCE
Journal of Pipeline Engineering;Sep2015, Vol. 14 Issue 3, p199
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
VARIOUS NON-DESTRUCTIVE EVALUATION (NDE) methods are used in the offshore industry during in-service inspections to detect the cracks in the structures and mechanical items. The metric generally used to quantify the capability of the NDE method is probability of detection (PoD), which is expressed as a function of crack size through a PoD curve. Human skills play a major role in determining the overall reliability of the NDE method used for crack detection. Thus, a brief discussion relating to human factors in NDE reliability is presented. Thereafter, based on a literature review, the history and development of PoD curves is provided. The statistics of the PoD curve, along with the statistical models of the curve for different NDE methods is also presented. Furthermore, the limitations of PoD curves are discussed in the paper and, finally, a brief discussion about model-assisted PoD is presented.
ACCESSION #
110087075

 

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