Long pulse excitation thermographic non-destructive evaluation

Darryl P. Almond; Stefano L. Angioni; Simon G. Pickering

doi:10.1016/j.ndteint.2017.01.003

Long pulse excitation thermographic non-destructive evaluation

Darryl P. Almond, Stefano L. Angioni, Simon G. Pickering

Department of Mechanical Engineering

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Abstract

A comprehensive analysis of the defect detection performance of long pulse excitation thermographic NDE is presented. An analytical procedure for predicting the thermal image contrasts of defects of specified size and depth is developed and validated by extensive experimental studies of test pieces having a wide range of thermal properties. Results obtained using long pulse (~5 s) excitation are compared with those obtained using traditional flash excitation. The conditions necessary for the success of the long pulse method are explained and illustrated by both modelling and experimental results. Practical advantages of long pulse excitation are discussed.

Original language	English
Pages (from-to)	7-14
Number of pages	8
Journal	NDT and E International
Volume	87
Early online date	4 Jan 2017
DOIs	https://doi.org/10.1016/j.ndteint.2017.01.003
Publication status	Published - 30 Apr 2017

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10.1016/j.ndteint.2017.01.003

final_Long_pulse_excitation (1).PDFAccepted author manuscript, 1.22 MBLicence: CC BY-NC-ND

Simon Pickering
- S.G.Pickeringbath.acuk
- Department of Mechanical Engineering - Research Fellow
- IAAPS: Propulsion and Mobility
Person: Researcher

Cite this

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title = "Long pulse excitation thermographic non-destructive evaluation",

abstract = "A comprehensive analysis of the defect detection performance of long pulse excitation thermographic NDE is presented. An analytical procedure for predicting the thermal image contrasts of defects of specified size and depth is developed and validated by extensive experimental studies of test pieces having a wide range of thermal properties. Results obtained using long pulse (~5 s) excitation are compared with those obtained using traditional flash excitation. The conditions necessary for the success of the long pulse method are explained and illustrated by both modelling and experimental results. Practical advantages of long pulse excitation are discussed.",

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AU - Angioni, Stefano L.

AU - Pickering, Simon G.

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N2 - A comprehensive analysis of the defect detection performance of long pulse excitation thermographic NDE is presented. An analytical procedure for predicting the thermal image contrasts of defects of specified size and depth is developed and validated by extensive experimental studies of test pieces having a wide range of thermal properties. Results obtained using long pulse (~5 s) excitation are compared with those obtained using traditional flash excitation. The conditions necessary for the success of the long pulse method are explained and illustrated by both modelling and experimental results. Practical advantages of long pulse excitation are discussed.

AB - A comprehensive analysis of the defect detection performance of long pulse excitation thermographic NDE is presented. An analytical procedure for predicting the thermal image contrasts of defects of specified size and depth is developed and validated by extensive experimental studies of test pieces having a wide range of thermal properties. Results obtained using long pulse (~5 s) excitation are compared with those obtained using traditional flash excitation. The conditions necessary for the success of the long pulse method are explained and illustrated by both modelling and experimental results. Practical advantages of long pulse excitation are discussed.

U2 - 10.1016/j.ndteint.2017.01.003

DO - 10.1016/j.ndteint.2017.01.003

M3 - Article

SN - 0963-8695

VL - 87

SP - 7

EP - 14

JO - NDT and E International

JF - NDT and E International

ER -

Long pulse excitation thermographic non-destructive evaluation

Abstract

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