Simulation of Non-Destructive Testing on Weld Surface Crack of Metal Structure by Electromagnetically Stimulated Infrared Thermography

Abstract:

With the wider use of metal welded structure in engineering machine, on-line inspection on weld crack is of great significance. This paper reports an emerging nondestructive approach----electromagnetically stimulated infrared thermography technique, for the detection and characterization of surface cracks. According to the electromagnetic thermal coupling analysis theory, different abnormal temperature field distributions caused by various crack dimensions , coil lifting heights, stimulated frequencies and paint film thickness were obtained, via 3D finite element analysis (FEA).The results show that the weld surface crack detectability are greatly influenced by the crack width and the paint layer thickness, with coil life-off height decreasing and electromagnetic excitation frequency increasing, the maximum abnormal temperature difference increases. There is a certain reference value for further research on the design of the electromagnetically stimulated control device.

• Periodical: Applied Mechanics and Materials (Volume 590)
• Pages: 639-644
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.590.639
• Online since: June 2014
• Authors: Zhi Ping Liu*, Hui Long Liu, Lei Jiang, Ge Lu
• Keywords: Electromagnetically Stimulated, FEA, Infrared Thermograph, Weld Crack

References

[1] Xiaolei Feng, Yu Hu, Min Yan, etc. The nondestructive testing using infrared thermal imaging technology based on electromagnetic excitation[J]. Science & Technology Information, 2011(01): 112.

[2] C. Liang and T. Gui Yun. Surface crack detection for carbon fiber reinforced plastic (CFRP) materials using pulsed eddy current thermography[J]. IEEE Sens. J. 11(12), 3261–3268 (2011).

DOI: 10.1109/jsen.2011.2157492

[3] N. Biju, N. Ganesan C.V. Krishnamurthy, Krishnan Balasubramaniam. Frequency optimization for eddy current thermography[J]. NDT&E International, 2009(42): 415-420.

DOI: 10.1016/j.ndteint.2009.01.011

[4] Ben Weekes, Darryl P. Almond, Peter Cawley, Tim Barden, Eddy-current induced thermography-probability of detection study of small fatigue cracks in steel, titanium and nickel-based superalloy[J]. NDT & E International, 2012. 49: p.10.

DOI: 10.1016/j.ndteint.2012.03.009

[5] Bai L, Tian G Y , Simm A, et al. Fast crack profile reconstruction using pulsed eddy current signals[J]. NDT&E International, 2013(54): 37-44.

DOI: 10.1016/j.ndteint.2012.11.003

[6] Suixian Yang, Gui Yun Tian, Ilham Zainal Abidin, John Wilson. Simulation of edge cracks using pulsed eddy current stimulated thermography[J]. Journal of Dynamic Systems, Measurement, and Control, 2011, 133.

DOI: 10.1115/1.4002710

[7] Xiaoxue Lu. Welding material selection standards and quick guide[M]. Beijing: China Building Industry Press, 2011. 15-16.

[8] Abidin I Z, Tian G Y, Wilson J, et al. Quantitative evaluation of angular defects by pulsed eddy current thermography [J]. NDT&E International, 2010(43): 537-546.

DOI: 10.1016/j.ndteint.2010.05.010

[9] Juchun Gao, Guohua Li, Yakun Ma, etc. Numerical simulation of non-destructive testing of pipe crack by electromagnetically stimulated infrared thermography[J]. Mining & Processing Equipment, 2012, 40(11): 104-109.

[10] Simm A, Abidin I Z, Tian G Y, et al. Simulation and Visualisation for Electromagnetic Nondestructive Evaluation [J]. International Conference Information Visualisation, 2010: 515-520.

DOI: 10.1109/iv.2010.77

[11] The national development and reform commission of the People's Republic of China. JB/T 5000. 12-2007 General technical conditions of heavy machinery: part 12: coating[S]. Beijing: Mechanical Industry Press: (2008).