Inverse analysis of defect shapes by the Φ-gY method

Yasuhiro Iwamura, Kenzo Miya

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


This paper describes a new method for the solution of an inverse problem of how to determine the shape of a defect included in metal structure using a measured electrical potential. The electrical potential Φ and stream function Ψ, its conjugate form, are considered in the present method and in principle the method is based on a transformation of two pairs, (Φ, Ψ) and (X, Y), with a respective modification of the boundary conditions. Two solutions are provided and compared in terms of accuracy and computational time. An experiment with a tube was also conducted and the result is in good agreement with the theoretical prediction of the defect size.

Original languageEnglish
Pages (from-to)91-101
Number of pages11
JournalNuclear Engineering and Design
Issue number1
Publication statusPublished - 1991 Jul 1
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Safety, Risk, Reliability and Quality
  • Waste Management and Disposal
  • Mechanical Engineering


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