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Proceedings Paper

Lock-in thermography method for the NDT of composite materials
Author(s): Yanguang Zhao; Xinglin Guo; Mingfa Ren; Xiaogang Wang; YuNan He
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Paper Abstract

In this paper, the non-destructive testing process of lock-in thermography to some typical defects cases, including the composite with holes or ribs on its back, or inside with multi layers, air holes or defect, is simulated on the basis of the finite element method by ANSYS software. The results are also validated using the infrared thermography system developed by Cedip company. According to different defects type, different methods are given. In addition, influences of loading time, testing frequency, data processing and curved face on the non-destructive testing are also discussed in this paper. The results show that the finite element method can simulate the non-destructive testing process of lock-in thermography well. So the finite element method has obviously instructive effect on the selection of experiment parameters as well as can improve the testing efficiency.

Paper Details

Date Published: 25 August 2009
PDF: 6 pages
Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73753V (25 August 2009); doi: 10.1117/12.839270
Show Author Affiliations
Yanguang Zhao, Dalian Univ. of Technology (China)
Xinglin Guo, Dalian Univ. of Technology (China)
Mingfa Ren, Dalian Univ. of Technology (China)
Xiaogang Wang, Dalian Univ. of Technology (China)
YuNan He, SAP Beijing Software System Corp. (China)


Published in SPIE Proceedings Vol. 7375:
ICEM 2008: International Conference on Experimental Mechanics 2008
Xiaoyuan He; Huimin Xie; YiLan Kang, Editor(s)

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