Quantitative evaluation of crack propagation based on in-situ Eddy Current Monitoring system

Takashi Kasuya, Hisashi Endo, Tetsuya Uchimoto, Toshiyuki Takagi

Research output: Contribution to journalReview articlepeer-review

1 Citation (Scopus)


This paper studies method of quantitative crack monitoring based on the in-situ Eddy Current Monitoring (ECM) system. The capability of the ECM system in monitoring fatigue crack propagation is discussed along with the crack growth simulation. The fatigue tests for two austenitic stainless steel specimens were conducted; one has a V-notch and the other has a semi-elliptic slit. Their crack propagation was nonitored by means of eddy current testing (ECT) at room temperature. The numerical simulation of crack propagation by using stress intensity factor and a diagram of fatigue crack propagation velocity was carried out to derive mesh models for ECM signal calculation. Comparisons between experimental and numerical ECM signals reveal that this system is capable of quantitatively monitoring the crack growth process.

Original languageEnglish
Pages (from-to)165-172
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Issue number2
Publication statusPublished - 2006 Feb


  • Crack Propagation
  • Crack Sizing
  • Eddy Current Monitoring
  • Eddy Current Testing
  • Fatigue Crack
  • Fracture Mechanics

ASJC Scopus subject areas

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


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