Discrimination method of through-wall cracks in steam generator tubes using eddy current signals

A unique non-destructive technique to discriminate a through-wall crack and to measure the through-wall length of a through-wall crack was developed using the EDM notch specimens and verified by using real fatigue cracks. It is based on the distribution profile of the eddy current signal amplitude a...

Full description

Saved in:
Bibliographic Details
Published in:NDT & E international : independent nondestructive testing and evaluation 2006-07, Vol.39 (5), p.361-366
Main Authors: Hur, Do Haeng, Lee, Deok Hyun, Choi, Myung Sik, Lee, Un Chul, Kim, Seon Jin, Han, Jung Ho
Format: Article
Language:English
Subjects:
Applied sciences
Cross-disciplinary physics: materials science
rheology
Eddy current test
Exact sciences and technology
Fracture mechanics (crack, fatigue, damage...)
Fundamental areas of phenomenology (including applications)
In situ pressure test
Industrial metrology. Testing
Materials science
Materials testing
Mechanical engineering. Machine design
Physics
Solid mechanics
Steam generator tube
Structural and continuum mechanics
Through-wall crack
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A unique non-destructive technique to discriminate a through-wall crack and to measure the through-wall length of a through-wall crack was developed using the EDM notch specimens and verified by using real fatigue cracks. It is based on the distribution profile of the eddy current signal amplitude along the crack length direction. It was also verified that the internal pressurization of the in situ pressure test induced a plastic deformation of the crack, resulting in a remarkable increase of the signal amplitude.
ISSN:0963-8695
1879-1174
DOI:10.1016/j.ndteint.2005.10.005