Electrical potential drop method for evaluating crack depth

K. Ikeda, M. Yoshimi, C. Miki

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Analytical and experimental studies are performed on the electrical potential drop method for monitoring the properties of a surface crack. Integral formulas for potential drops for direct currents are derived by applying Green's theorem to the Laplace equation governing potential drop behaviour. Based on these formulas, a simple non-destructive method is proposed for evaluating the depth of a surface half-elliptic crack and for calibrating potential drop behaviour. The validity and applicability of this method are assessed through the comparison of analysis and experiment.

Original languageEnglish
Pages (from-to)25-38
Number of pages14
JournalInternational Journal of Fracture
Issue number1
Publication statusPublished - 1991 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Computational Mechanics
  • Modelling and Simulation
  • Mechanics of Materials


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