Quantitative evaluation of angular defects by pulsed eddy current thermography

Ilham Zainal Abidin, Gui Yun Tian, John Wilson, Suixian Yang, Darryl Almond

Research output: Contribution to journalArticle

98 Citations (Scopus)

Abstract

Pulsed eddy current (PEC) thermography employs a combination of PEC and thermographic non-destructive testing (NDT) techniques. This study considers the capabilities of PEC thermography for obtaining quantitative information about cracks set at an angle to the surface. The investigation is implemented by simulating the transient thermal distribution for angular slots, via time-stepping 3D finite element analysis (FEA), with the experimental work undertaken for verification. A slope inclination feature of the transient temperature distribution has been extracted and presented for estimating the angle of slots that is independent of slot depth and length inside the sample. With the identification of the slot angle, quantification of the length/depth of the slot inside the sample can then be made through a maximum temperature amplitude feature. Experimental studies have been undertaken for evaluation of the numerical simulation and transient feature extraction methods. 2010 Elsevier Ltd.
Original languageEnglish
Pages (from-to)537-546
Number of pages10
JournalNDT and E International
Volume43
Issue number7
DOIs
Publication statusPublished - Oct 2010

Fingerprint

Eddy currents
eddy currents
slots
Defects
evaluation
defects
Nondestructive examination
Feature extraction
Temperature distribution
Cracks
Finite element method
pattern recognition
Computer simulation
inclination
temperature distribution
estimating
cracks
slopes
Temperature
simulation

Cite this

Quantitative evaluation of angular defects by pulsed eddy current thermography. / Zainal Abidin, Ilham; Yun Tian, Gui; Wilson, John; Yang, Suixian; Almond, Darryl.

In: NDT and E International, Vol. 43, No. 7, 10.2010, p. 537-546.

Research output: Contribution to journalArticle

Zainal Abidin, I, Yun Tian, G, Wilson, J, Yang, S & Almond, D 2010, 'Quantitative evaluation of angular defects by pulsed eddy current thermography', NDT and E International, vol. 43, no. 7, pp. 537-546. https://doi.org/10.1016/j.ndteint.2010.05.010
Zainal Abidin, Ilham ; Yun Tian, Gui ; Wilson, John ; Yang, Suixian ; Almond, Darryl. / Quantitative evaluation of angular defects by pulsed eddy current thermography. In: NDT and E International. 2010 ; Vol. 43, No. 7. pp. 537-546.
@article{299954694094488286b246dfe6e7e79c,
title = "Quantitative evaluation of angular defects by pulsed eddy current thermography",
abstract = "Pulsed eddy current (PEC) thermography employs a combination of PEC and thermographic non-destructive testing (NDT) techniques. This study considers the capabilities of PEC thermography for obtaining quantitative information about cracks set at an angle to the surface. The investigation is implemented by simulating the transient thermal distribution for angular slots, via time-stepping 3D finite element analysis (FEA), with the experimental work undertaken for verification. A slope inclination feature of the transient temperature distribution has been extracted and presented for estimating the angle of slots that is independent of slot depth and length inside the sample. With the identification of the slot angle, quantification of the length/depth of the slot inside the sample can then be made through a maximum temperature amplitude feature. Experimental studies have been undertaken for evaluation of the numerical simulation and transient feature extraction methods. 2010 Elsevier Ltd.",
author = "{Zainal Abidin}, Ilham and {Yun Tian}, Gui and John Wilson and Suixian Yang and Darryl Almond",
year = "2010",
month = "10",
doi = "10.1016/j.ndteint.2010.05.010",
language = "English",
volume = "43",
pages = "537--546",
journal = "NDT and E International",
issn = "0963-8695",
publisher = "Elsevier",
number = "7",

}

TY - JOUR

T1 - Quantitative evaluation of angular defects by pulsed eddy current thermography

AU - Zainal Abidin, Ilham

AU - Yun Tian, Gui

AU - Wilson, John

AU - Yang, Suixian

AU - Almond, Darryl

PY - 2010/10

Y1 - 2010/10

N2 - Pulsed eddy current (PEC) thermography employs a combination of PEC and thermographic non-destructive testing (NDT) techniques. This study considers the capabilities of PEC thermography for obtaining quantitative information about cracks set at an angle to the surface. The investigation is implemented by simulating the transient thermal distribution for angular slots, via time-stepping 3D finite element analysis (FEA), with the experimental work undertaken for verification. A slope inclination feature of the transient temperature distribution has been extracted and presented for estimating the angle of slots that is independent of slot depth and length inside the sample. With the identification of the slot angle, quantification of the length/depth of the slot inside the sample can then be made through a maximum temperature amplitude feature. Experimental studies have been undertaken for evaluation of the numerical simulation and transient feature extraction methods. 2010 Elsevier Ltd.

AB - Pulsed eddy current (PEC) thermography employs a combination of PEC and thermographic non-destructive testing (NDT) techniques. This study considers the capabilities of PEC thermography for obtaining quantitative information about cracks set at an angle to the surface. The investigation is implemented by simulating the transient thermal distribution for angular slots, via time-stepping 3D finite element analysis (FEA), with the experimental work undertaken for verification. A slope inclination feature of the transient temperature distribution has been extracted and presented for estimating the angle of slots that is independent of slot depth and length inside the sample. With the identification of the slot angle, quantification of the length/depth of the slot inside the sample can then be made through a maximum temperature amplitude feature. Experimental studies have been undertaken for evaluation of the numerical simulation and transient feature extraction methods. 2010 Elsevier Ltd.

UR - http://www.scopus.com/inward/record.url?scp=77955468942&partnerID=8YFLogxK

UR - http://dx.doi.org/10.1016/j.ndteint.2010.05.010

U2 - 10.1016/j.ndteint.2010.05.010

DO - 10.1016/j.ndteint.2010.05.010

M3 - Article

VL - 43

SP - 537

EP - 546

JO - NDT and E International

JF - NDT and E International

SN - 0963-8695

IS - 7

ER -