Volume 47 Issue S1
Jul.  2018
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Guo Wei, Dong Lihong, Wang Haidou, Ma Runbo, Xiang Ming, Xu Binshi. Identification method for crack defect in base material under spray coatings by vibrothermography[J]. Infrared and Laser Engineering, 2018, 47(S1): 36-43. doi: 10.3788/IRLA201847.S104001
Citation: Guo Wei, Dong Lihong, Wang Haidou, Ma Runbo, Xiang Ming, Xu Binshi. Identification method for crack defect in base material under spray coatings by vibrothermography[J]. Infrared and Laser Engineering, 2018, 47(S1): 36-43. doi: 10.3788/IRLA201847.S104001

Identification method for crack defect in base material under spray coatings by vibrothermography

doi: 10.3788/IRLA201847.S104001
  • Received Date: 2018-02-05
  • Rev Recd Date: 2018-05-03
  • Publish Date: 2018-06-25
  • In order to discriminate crack defects in base material covered by spray coatings, the heat generation pattern of coating crack and substrate crack were investigated when being excitated by low frequency ultrasonic vibrancy, based on theoretical analysis and numerical simulation. The surface temperature varieties caused by coating crack and substrate crack were compared; the turbulence to coating crack thermal wave caused by heat generation of a substrate crack was analysed, and the phase deviation (PD) phenomenon of mixed thermal wave was observed. On this basis, a method to identify cracks in the base material under the spray coating was proposed, which employed phase deviation as the characteristic parameter. Furthermore, experiment was implemented to validate the proposed method, polynomial fitting (PF) and wavelet decomposition (WD) were utilized to improve the time frequency resolution ratio during image processing and reconstruction.
  • [1] Yang Yue, He Cunfu, Wu Bin. Optimization of microwave detecting thermal barrier coatings using coaxial probe[J]. Journal of Mechanical Engineering, 2014, 50(2):36-41. (in Chinese)
    [2] Zhao Shibin, Wang Huaming, Wu Naiming, et al. Nondestructive testing of the fatigue properties of air plasma sprayed thermal barrier coatings by pulsed thermography[J]. Russian Journal of Nondestructive Testing, 2015, 51(7):445-456.
    [3] Chen Lin, Yang Li, Fan Chunli, et al. Quantitative identification of coating thickness and debonding defects of TBC by polse phase technology[J]. Infrared and Laser Engineering, 2015, 44(2):2050-2056. (in Chinese)
    [4] Xu Changhang, Xie Jing, Chen Guoming, et al. An infrared thermal image processing framework based on super pixel algorithm to detect cracks on metal surface[J]. Infrared Physics and Technology, 2014, 67(4):266-272.
    [5] Jin Guofeng, Zhang Wei, Yang Zhengwei, et al. Application of ultrasonic infrared thermal wave technique in detection and recognition of interface kissing damage[J]. Journal of Sichuan University (Engineering Science Edition), 2013, 45(2):167-175. (in Chinese)
    [6] Lu Jianping, Han Xiaoyan, Newaz G, et al. Study of the effect of crack closure in Sonic Infrared Imaging[J]. Nondestructive Testing Evaluation, 2007, 22(2-3):127-135.
    [7] Renshaw J, Chen J C, Holland S D, et al. The sources of heat generation in vibrothermography[J]. NDT E International, 2011, 44(8):736-739.
    [8] Han Xiaoyan, Islam M S, Newaz G, et al. Finite element modeling of the heating of cracks during sonic infrared imaging[J]. Journal of Applied Physics, 2006, 99(7):074905.
    [9] Ptaszek G, Cawley P, Almond D, et al. Artificial disbonds for calibration of transient thermography inspection of thermal barrier coating systems[J]. NDT E International, 2012, 45(1):71-78.
    [10] Bendada A, Sfarra S, Genest M, et al. How to reveal subsurface defects in Kevlar composite materials after an impact loading using infrared vision and optical NDT techniques[J]. Engineering Fracture Mechanics, 2013, 108:195-208.
    [11] Manohar A, Scalea F L. Determination of defect depth and size using virtual heat sources in pulsed infrared thermography[J]. Experimental Mechanics, 2013, 53(4):661-671.
    [12] Zhu Jianguo, Xie Huimin, Liu Zhanwei. Research progress on the experimental measurement methods of mechanical properties of thermal coatings[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(1):45-60. (in Chinese)
    [13] Freihofer G, Dustin J, Hong T, et al. Stress and structural damage sensing piezospectroscopic coatings validated with digital image correlation[J]. Aip Advances, 2015, 5(3):0371391-0371395.
    [14] Li Songlin, Xiang Jintao, Zhou Wuxi, et al. Sliding wear behavior of high-velocity oxy-fuel sprayed WC-10Co4Cr coatings[J]. The Chinese Journal of Nonferrous Metals, 2012, 22(5):1371-1376. (in Chinese)
    [15] Renshaw J, Holland S D, Thompson R B. Measurement of crack opening stresses and crack closure stress profiles from heat generation in vibrating cracks[J]. Applied Physics Letters, 2008, 93(2):081914-081920.
    [16] Leon J, Perpina X, Altet J, et al. Spatially and frequency-resolved monitoring of intradie capacitive coupling by heterodyne excitation infrared lock-in thermography[J]. Applied Physics Letters, 2013, 102(5):0541031-0541036.
    [17] Lesthaeghe T J. Evaluation of some parameters influencing vibrothermographic crack heating[D]. Ames:Iowa State University, 2015.
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Identification method for crack defect in base material under spray coatings by vibrothermography

doi: 10.3788/IRLA201847.S104001
  • 1. National Key Lab for Remanufacturing,Army Academy of Armored Forces,Beijing 100072,China

Abstract: In order to discriminate crack defects in base material covered by spray coatings, the heat generation pattern of coating crack and substrate crack were investigated when being excitated by low frequency ultrasonic vibrancy, based on theoretical analysis and numerical simulation. The surface temperature varieties caused by coating crack and substrate crack were compared; the turbulence to coating crack thermal wave caused by heat generation of a substrate crack was analysed, and the phase deviation (PD) phenomenon of mixed thermal wave was observed. On this basis, a method to identify cracks in the base material under the spray coating was proposed, which employed phase deviation as the characteristic parameter. Furthermore, experiment was implemented to validate the proposed method, polynomial fitting (PF) and wavelet decomposition (WD) were utilized to improve the time frequency resolution ratio during image processing and reconstruction.

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