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Lookup NU author(s): Dr Bin Gao, Dr Aijun Yin, Professor Gui Yun TianORCiD, Dr Wai Lok Woo
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Characterizing and tracking the properties variation in conductive material such as electrical conductivity, magnetic permeability and thermal conductivity have promising potential for the detection and evaluation of material state undertaken by fatigue or residual stress. This is a challenge task for the research field of non-destructive testing and evaluation. This paper proposes a spatial-transient-stage tensor mathematical model of inductive thermography system and Tucker decomposition algorithm for characterizing and tracking the variation of properties. The inductive thermography has advantages in such as rapid inspection and high sensitivity of defect detection. The links between mathematical and physics models have been discussed. The simulation experiments of tracking physic properties of steel material are investigated and verified. In addition, the real experiment of the measurement for gears with different cycles of fatigue tests is evaluated. The estimation of normalized stage basis by using Tucker decomposition has shown high correlation relationships with different variation of physics properties in material. (C) 2014 Elsevier Masson SAS. All rights reserved.
Author(s): Gao B, Yin AJ, Tian GY, Woo WL
Publication type: Article
Publication status: Published
Journal: International Journal of Thermal Sciences
Year: 2014
Volume: 85
Pages: 112-122
Print publication date: 01/11/2014
Online publication date: 17/07/2014
Acceptance date: 16/06/2014
ISSN (print): 1290-0729
ISSN (electronic): 1778-4166
Publisher: Elsevier Masson
URL: http://dx.doi.org/10.1016/j.ijthermalsci.2014.06.018
DOI: 10.1016/j.ijthermalsci.2014.06.018
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