Sizing of long stress corrosion crack from 2D ECT signals by using a multisegment inverse analysis strategy

Li Wang, Zhenmao Chen, Tian Jian Lu, Minglong Xu, Noritaka Yusa, Kenzo Miya

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

In this paper, a scheme for reconstruction of a long Stress Corrosion Crack (SCC) from 2D ECT signals is proposed based on a multiple crack segments strategy. The profiles of inner and edge crack segments are reconstructed separately by using signals at different scanning direction. A hybrid scheme of the Conjugate Gradient (CG) method and the advance-retreat method are introduced to reconstruct the crack conductivity and crack size. Several cracks of complicated profile are reconstructed from simulated ECT signals of a conductive SCC model. The numerical results verified the validity of the proposed scheme.

Original languageEnglish
Pages (from-to)155-161
Number of pages7
JournalInternational Journal of Applied Electromagnetics and Mechanics
Volume28
Issue number1-2
DOIs
Publication statusPublished - 2008
Externally publishedYes

Keywords

  • 2D signal simulation
  • Hybrid inversion method
  • Long stress corrosion crack
  • Multisegment ECT inversion

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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