Analysis of the defect detection capabilities of pulse stimulated thermographic NDE techniques

D. P. Almond, S. G. Pickering

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

5 Citations (Scopus)

Abstract

The defect detection capabilities of both flash and long pulse excitation thermographic non-destructive evaluation (TNDE) techniques have been obtained using an analytical expression that involves defect size and depth, thermophysical properties and the inspection systemexcitation energy. The possibility of using long pulse excitation in place of traditional flash excitation is discussed and is considered quantitatively. It has been found that long pulse TNDE becomes an effective alternative where the defect image contrast peak obtained in the flash variant of TNDE occurs at a time that approaches or is greater than a second. Images of defects in aluminum alloy, mild steel, stainless steel and carbon fiber composite obtained by both TNDE techniques are presented.
Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages1617-1623
Volume1581
DOIs
Publication statusPublished - 2014
Event40th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2013, Incorporating the 10th International Conference on Barkhausen and Micro-Magnetics, ICBM 2013 - Baltimore, USA United States
Duration: 21 Jul 201326 Jul 2013

Conference

Conference40th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2013, Incorporating the 10th International Conference on Barkhausen and Micro-Magnetics, ICBM 2013
CountryUSA United States
CityBaltimore
Period21/07/1326/07/13

    Fingerprint

Cite this