Dual-frequency Eddy Current Non-destructive Detection of Fatigue Cracks in Compressor Discs of Aero Engines

  • B. Sasi Indira Gandhi Centre for Atomic Research, Kalpakkam
  • B.P.C. Rao Indira Gandhi Centre for Atomic Research, Kalpakkam
  • T. Jayakumar Indira Gandhi Centre for Atomic Research, Kalpakkam
DOI: https://doi.org/10.14429/dsj.54.2069
Keywords: Dual-frequency eddy current testing, fatigue crack, compressor discs, aero engines, non-destructive testing, aircraft components, non-destructive inspection, NDE, NDT, NDI, eddy current testing, non-destructive evaluation

Abstract

Eddy current non-destructive testing is used to inspect the critical aircraft components. The shortcomings of the inspection method identified, based on a few accidents, necessitate
the development of high sensitive and reliable testing procedures for inspecting the critical safety related aircraft components. This paper discusses a dual-frequency eddy current testing
procedure developed for inspection of compressor discs of aero engines for detecting fatigue cracks with high sensitivity and reliability. This procedure is capable of detecting fatigue cracks
smaller than 2 mm in comparison to 4 mm cracks that can be detected with the currently practiced eddy current testing procedure.
Published
2004-10-01
How to Cite
Sasi, B., Rao, B., & Jayakumar, T. (2004). Dual-frequency Eddy Current Non-destructive Detection of Fatigue Cracks in Compressor Discs of Aero Engines. Defence Science Journal, 54(4), 563-570. https://doi.org/10.14429/dsj.54.2069
Issue
Vol 54 No 4
Section
Materials Science & Metallurgy
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