Analysis of direct current potential difference in a multiple-cracked material

Naoya Tada, Yoshihito Hayashi, Takayuki Kitamura, Ryuichi Ohtani

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The electric field in a conductive material with multiple circular cracks was analyzed by means of crack-flow modification method (CFMM). It was found by the analysis that the increase in potential difference of the cracked material normalized by the potential difference without cracks, ΔV/V0, was in proportion to the product of the effective volumetric crack density and the mean of cubed crack radius, neff[r3]m. This universal relationship was also valid for multiple semi-circular cracks distributed on the surface of the material and gave the physical meaning of damage detected by the direct current electrical potential method.

Original languageEnglish
Pages (from-to)372-379
Number of pages8
JournalJSME International Journal, Series A: Mechanics and Material Engineering
Issue number3
Publication statusPublished - 1998
Externally publishedYes


  • Crack-Flow Modification Method
  • Direct Current
  • Electric Potential Difference
  • Multiple Cracks
  • Nondestructive Inspection
  • Numerical Analysis

ASJC Scopus subject areas

  • General Engineering


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