PULSED EDDY CURRENT METHOD DEVELOPMENTS FOR HIDDEN CORROSION DETECTION IN AIRCRAFT STRUCTURES

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Authors
  1. Lepine, B.A.
  2. Wallace, B.P.
  3. Forsyth, D.S.
  4. Wyglinski, A.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
When assessing the condition of multi-layered aircraft structures using nondestructive testing (NDT), there is a requirement to accurately characerize hidden corrosion by identifying the affected layers, and measuring both the amount of metal loss and the associated pillowing due to the corrosion products. Such aircraft corrosion inspection systems require sensitive and discriminating NDT techniques. Also, reducing inspection times for large areas and simplifying inspection interpretation are increasingly important. Inspection systems must quickly acquire large amounts of information and be adaptable to automated scanning and imaging technologies. This paper investigates the pulsed eddy current method as an approach that addresses these requirements by examining its potential for detecting and characterizing corrosion in thin skin fuselage lap splices.
Report Number
DCIEM-98-P-79 — Research Paper
Date of publication
01 Sep 1998
Number of Pages
13
DSTKIM No
99-00206
CANDIS No
510033
Format(s):
Hardcopy;Document Image stored on Optical Disk

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