Crack shape reconstruction in ferromagnetic materials using a novel fast numerical simulation method

Haoyu Huang, Toshiyuki Takagi, Tetsuya Uchimoto

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

This paper describes research on crack shape reconstruction in ferromagnetic materials using a novel fast numerical simulation method. The fast numerical method developed here, which can treat ferromagnetic materials, is an extension of a precomputed database approach based on the reduced magnetic vector potential method. It provides a fast forward simulator that is about 80 times faster than a conventional one, even in the case of ferromagnetic materials, without losing accuracy. The fast simulator is applied to the inverse problem of eddy current testing (ECT), crack shape reconstruction, and results of some electric discharge machining (EDM) cracks on a ferromagnetic plate are shown.

Original languageEnglish
Pages (from-to)1374-1377
Number of pages4
JournalIEEE Transactions on Magnetics
Volume40
Issue number2 II
DOIs
Publication statusPublished - 2004 Mar

Keywords

  • Eddy current testing
  • Ferromagnetic material
  • Inverse problem
  • Precomputed database approach

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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