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Impact damage detection and characterization using eddy current pulsed thermography

Lookup NU author(s): Dr Bin Gao, Professor Gui Yun TianORCiD


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© 2016 IEEE. Reciprocating impact load leads to plastic deformation of the metal, which will cause fatigue and cracks. Due to the complex surface condition and various types of damage, it is difficult to extract the feature of nature micro cracks by using common thermograph NDT methods. This paper presents the feasibility study of using eddy current pulse thermography for detecting impact damages of torque arm in aircraft brake system. The optical flow algorithm is used to characterize the thermal diffusion and extract the transient thermal behavior among impact areas under the complex background noise. In addition, the spatial-transient pattern analysis is hybrid to automatically detect the nature cracks. Experiment study has been conducted and the magnetic particle is presented to validate the proposed method.

Publication metadata

Author(s): Wang Y, Ke H, Shi J, Gao B, Tian G

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 2016 IEEE Far East NDT New Technology and Application Forum (FENDT 2016)

Year of Conference: 2017

Pages: 223-226

Online publication date: 27/07/2017

Acceptance date: 02/04/2016

Publisher: IEEE


DOI: 10.1109/FENDT.2016.7992029

Library holdings: Search Newcastle University Library for this item

ISBN: 9781509026647