Numerical simulation for identification of semi-elliptical crack on the inner surface of pipe by means of direct-current electrical potential difference method with multiple-probe sensor

Naoya Tada, Makoto Uchida, Hiroki Ishikawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The direct-current potential difference method (DC-PDM) is known as one of the promising non-destructive methods to evaluate the crack in the conductors. This method utilizes the change in the current path or the potential difference which is caused by the crack. In the previous study, a method of three-dimensional evaluation of semi-elliptical crack on the back surface of plate was proposed and its theoretical validity and practical utility were shown based on the results of numerical analyses and experiments. In this study, the method is extended to the identification of semi-elliptical crack on the inner surface of pipe and the related electric field analyses are carried out by the finite element method. The results show that the crack on the inner surface of pipe can be evaluated by the proposed method based on the distribution of potential difference measured on the outer surface of pipe. The present extension will be very useful for various practical cases which are often seen in the piping of power-generating and petrochemical plants.

Original languageEnglish
Title of host publicationProceedings of the ASME Pressure Vessels and Piping Conference 2009
Pages257-263
Number of pages7
DOIs
Publication statusPublished - Jun 11 2010
Event2009 ASME Pressure Vessels and Piping Conference, PVP 2009 - Prague, Czech Republic
Duration: Jul 26 2009Jul 30 2009

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume5
ISSN (Print)0277-027X

Other

Other2009 ASME Pressure Vessels and Piping Conference, PVP 2009
CountryCzech Republic
CityPrague
Period7/26/097/30/09

ASJC Scopus subject areas

  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Numerical simulation for identification of semi-elliptical crack on the inner surface of pipe by means of direct-current electrical potential difference method with multiple-probe sensor'. Together they form a unique fingerprint.

Cite this