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Modelling and evaluation of eddy current stimulated thermography

Lookup NU author(s): John Wilson, Professor Gui Yun TianORCiD, Dr Suixian Yang


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Thermographic inspection with eddy current (EC) excitation is an emerging integrative NDTE method with the ability to inspect for defects over large areas. The resultant surface heat distribution from direct EC heating and diffused heat can be obtained easily with a thermal camera, but techniques for the determination of heating mechanisms around a particular defect for quantitative defect characterisation are required. In this paper, numerical modelling and experimental studies are applied to understand EC stimulated thermography on simple discontinuity defects, including transient EC distribution and heating propagation for slots and notches. This fundamental understanding of transient EC distribution and heating propagation will aid in the development of feature extraction and pattern recognition techniques for the quantitative analysis of EC thermography images and defect characterisation. © 2010 Taylor & Francis.

Publication metadata

Author(s): Wilson J, Tian G, Abidin I, Yang S, Almond D

Publication type: Article

Publication status: Published

Journal: Nondestructive Testing and Evaluation

Year: 2010

Volume: 25

Issue: 3

Pages: 205-218

Print publication date: 08/01/2010

ISSN (print): 1058-9759

ISSN (electronic): 1477-2671

Publisher: Taylor & Francis


DOI: 10.1080/10589750903242533


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