Rapid reconstruction of natural stress corrosion cracking from eddy current NDT data

Noritaka Yusa, Zhenmao Chen, Kenzo Miya

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

This paper reports the reconstruction of a stress corrosion cracking from eddy current signals. The stress corrosion cracking was found in the steam generator tube of a nuclear power plant during ISI period, and its cross-sectional profile is reconstructed with the aid of computer simulation. A crack is modeled as a region with uniform conductivity inside, and the boundary profile and the conductivity of the crack are reconstructed. An inversion algorithm based upon the tabu search is utilized in this study. It is demonstrated in this paper that the profile of stress corrosion cracks can be well estimated from eddy current signals within a reasonable computational time.

Original languageEnglish
Pages (from-to)593-599
Number of pages7
JournalKey Engineering Materials
Volume270-273
Issue numberI
DOIs
Publication statusPublished - 2004
Externally publishedYes
EventProceedings of the 11th Asian Pacific Conference on Nondestructive Testing - Jeju Island, Korea, Republic of
Duration: 2003 Nov 32003 Nov 7

Keywords

  • Eddy current testing
  • Inversion
  • Non-destructive testing
  • Reconstruction
  • Steam generator tube
  • Stress corrosion cracking

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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