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Thermography Spatial-Transient-Stage Tensor Model and Materal Property Characterization

Lookup NU author(s): Professor Bin Gao, Dr Aijun Yin, Professor Gui Yun TianORCiD, Dr Wai Lok Woo


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Characterizing and tracking electrical conductivity, magnetic permeability and thermal conductivity in conductive material have promising potential for the detection and evaluation of material state undertaken by fatigue or residual stress. This letter proposes a spatial-transient-stage tensor mathematical model of eddy current pulsed thermography system and Tucker decomposition algorithm for characterizing and tracking the variation of properties. The links between mathematical and physical models have been discussed. The simulation experiments of tracking physic properties of steel material are investigated and verified. The estimation of normalized stage basis by using Tucker decomposition has shown high correlation relationships with different variation of physic properties in material

Publication metadata

Author(s): Gao B, Yin AJ, Wang YZ, Tian GY, Woo WL, Liu HX

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 2014 IEEE Far East Forum on Nondestructive Evaluation/Testing

Year of Conference: 2014

Pages: 199-203

Online publication date: 20/10/2014

Acceptance date: 20/06/2014

Publisher: IEEE


DOI: 10.1109/FENDT.2014.6928262