Accession Number : ADP000013

Title :   Flaw Detection Reliability Assessment and Analysis,

Corporate Author : MARTIN MARIETTA DENVER AEROSPACE CO

Personal Author(s) : Rummel,Ward D. ; Rathke,Richard A.

Report Date : SEP 1982

Pagination or Media Count : 17

Abstract : The assessment of nondestructive flaw detection reliability is complex in character due to the varied engineering and scientific disciplines involved. The evolution of nondestructive flaw detection reliability demonstration and assessment has involved varied efforts by workers in various industries, applications and environments. A significant data base has been established and has contributed to a general understanding of the elements of inspection reliability. A considerable number of analyses have been performed to effect a better understanding of the problem and to identify critical factors in both the inspection process performance and in reliability assessment. This paper reviews principle factors in nondestructive flaw detection process performance and suggests an alternative approach to the analysis of performance data. The approach includes consideration of the conditional probability character of flaw detection and consideration for predictive modeling based on signal and noise analyses of flaw detection by instrumental techniques and by human operators. (Author)

Descriptors :   *Nondestructive testing, *Defects(Materials), *Cracks, *Structural analysis, *Factor analysis, Acoustic signals, Signal to noise ratio, Damage assessment, Reliability, Optics, Performance(Engineering), Stimuli, Inspection, Statistical analysis, Human factors engineering, Performance(Human), Acoustic waves, Wave propagation, Fracture(Mechanics), Failure(Mechanics), Composite structures

Subject Categories : Metallurgy and Metallography
      Test Facilities, Equipment and Methods
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE