Potential difference distribution on FLAT plate around semi-ellipsoidal thinning on the back surface

Naoya Tada, Manabu Nohara, Makoto Uchida

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

1 Citation (Scopus)

Abstract

Local wall thinning is one of serious problems in aged power generating plants and is known to occur mainly by Flow Accelerated Corrosion (FAC) and Liquid Droplet Impingement (LDI) erosion. As the thinning grows inside the pipes, it is difficult to detect and evaluate it from the outer surface of pipe. The direct-current potential difference method (DC-PDM) is thought to be a suitable non-destructive technique to monitor the initiation and growth of these damages. In this study, an approximate analysis method of the potential difference around a semi-ellipsoidal thinning on the back surface of flat plate is presented and the accuracy is discussed based on the results obtained by the finite element analyses.

Original languageEnglish
Title of host publicationHigh-Pressure Technology; ASME NDE Division; 22nd Scavuzzo Student Paper Symposium and Competition
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791846025
DOIs
Publication statusPublished - Jan 1 2014
EventASME 2014 Pressure Vessels and Piping Conference, PVP 2014 - Anaheim, United States
Duration: Jul 20 2014Jul 24 2014

Publication series

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

Other

OtherASME 2014 Pressure Vessels and Piping Conference, PVP 2014
CountryUnited States
CityAnaheim
Period7/20/147/24/14

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ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Tada, N., Nohara, M., & Uchida, M. (2014). Potential difference distribution on FLAT plate around semi-ellipsoidal thinning on the back surface. In High-Pressure Technology; ASME NDE Division; 22nd Scavuzzo Student Paper Symposium and Competition (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 5). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/PVP2014-28684