A numerical method for simulation of nonlinear eddy current testing signals based on transient Ar formulation

Shejuan Xie, Yunfei Li, Wenlu Cai, Hong En Chen, Zhenmao Chen, Toshiyuki Takagi, Tetsuya Uchimoto, Yasuhiko Yoshida

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

To explore the principle and to optimize the nonlinear Eddy Current Testing (ECT) system, a forward numerical analysis code for nonlinear ECT signal simulation is indispensable. In this paper, an edge element numerical code of the transient Ar (reduced A) formulation is developed for this purpose. The nonlinear feature of the permeability in each element is taken into account at every time step during step by step numerical integration procedure. The dependence of the third harmonic component of the response signals on the initial permeability is investigated by using the developed code. The qualitative agreement of the simulation and the experimental results demonstrated the feasibility of the proposed simulation method and the corresponding numerical code.

Original languageEnglish
Pages (from-to)964-968
Number of pages5
JournalMaterials Transactions
Volume54
Issue number6
DOIs
Publication statusPublished - 2013

Keywords

  • A method
  • Edge element
  • Nonlinear eddy current testing (ECT)
  • Numerical method
  • Transient problem

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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