Probability of Detection of Flaws in a Gas Turbine Engine Component Using Electric Current Perturbation
Date
Authors
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Authors
Research Projects
Organizational Units
Journal Issue
Is Version Of
Versions
Series
Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
Department
Abstract
In an exploratory development program, the Electric Current Perturbation (ECP) method was optimized for inspection of typical F-100 gas turbine engine components (disks and seals).1,2 A primary objective was to achieve high reliability for the detection of flaws (fatigue cracks) at the retirement-for-cause (RFC) target flaw size of 0.010 in. long x 0.005 in. deep. Probability of detection (POD) data for surface flaws in blade slots of an F-100 first stage fan disk were estimated from experimentally determined probability density functions (PDF’s) for background and flaw signals. The POD as a function of flaw size was estimated from these data.