Numerical study on coated metal surface crack by laser ultrasonic detection

XU Zhixiang; HUANG Jianhua; WANG Zhenggong; HUANG Yimin; WANG Yu

doi:10.7510/jgjs.issn.1001-3806.2018.06.014

LASER TECHNOLOGY > 2018 > 42(6): 801-805. > DOI: 10.7510/jgjs.issn.1001-3806.2018.06.014

XU Zhixiang, HUANG Jianhua, WANG Zhenggong, HUANG Yimin, WANG Yu. Numerical study on coated metal surface crack by laser ultrasonic detection[J]. LASER TECHNOLOGY, 2018, 42(6): 801-805. DOI: 10.7510/jgjs.issn.1001-3806.2018.06.014

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Numerical study on coated metal surface crack by laser ultrasonic detection

School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China

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Received Date: December 24, 2017
Revised Date: January 22, 2018
Published Date: November 24, 2018

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Abstract

Abstract

In order to study the application of ultrasonic wave induced by line-source pulse laser on surface crack detection of the coated metal plate, finite element simulation method was used to establish the model of metal plate with cracks with and without nickel coating. Rayleigh wave excited by laser and the propagation process of Rayleigh wave were simulated. Through theoretical analysis of waveform at the receiving point, the relationship of coating thickness, crack depth and Rayleigh wave time-frequency domain signal was obtained. The numerical results show that Rayleigh wave velocity varies with the thickness of coating thickness h. When there are cracks on the surface, the arriving time difference Δt between reflection Rayleigh wave and shear Rayleigh wave of the model without coating has linear relationship with crack depth h_c. Δt of the model with coating has linear relationship with crack depth h_c at different segmentations. The numerical results provide reference for actual measurement of the surface crack depth of metal sheets with coating.
- measurement and metrology,
- laser ultrasonic,
- Rayleigh wave,
- rack detection,
- nickel coating

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[1]	MA J, ZHAO Y, ZHOU F Y. Effect of defocusing amount on thickness measurement based on laser ultrasound[J]. Laser Technology, 2015, 39(3):349-352(in Chinese). http://www.opticsjournal.net/abstract.htm?aid=OJ150428000149u1x4A7
[2]	LIU P P, NAZIRAH A W, SOHN H. Numerical simulation of damage detection using laser-generated ultrasound[J]. Ultrasonics, 2016, 69:248-258. DOI: 10.1016/j.ultras.2016.03.013
[3]	ZHAN Y, LIU Ch Sh, ZHANG F P, et al. Experimental study and finite element analysis based on equivalent load method for laser ultrasonic measurement of elastic constants[J]. Ultrasonics, 2016, 69:243-247. DOI: 10.1016/j.ultras.2016.03.014
[4]	GUAN J F. Numerical analysis of inspection of micro-surface crack by laser generated surface acoustic waves[J]. Chinese Journal of Quantum Electronics, 2011, 28(3):362-368(in Chinese). http://en.cnki.com.cn/Article_en/CJFDTOTAL-LDXU201103021.htm
[5]	SONG Y X, WANG J. The influence of laser parameters and laser ultrasonic detection methods on ultrasonic signals[J]. Infrared and Laser Engineering, 2014, 43(5):1433-1437(in Chinese). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=CFKO199311920765245
[6]	ZENG W, WANG H T, TIAN G Y, et al. Study on the oscillation effects of laser-induced SAW and near-surface defects[J]. Chinese Journal of Physics, 2015, 64(13):134302(in Chinese).
[7]	GUO H L, ZHENG B, LIU H. Numerical simulation and experimental research on interaction of micro-defects and laser ultrasonic signal[J]. Optics and Laser Technology, 2017, 96:58-64. DOI: 10.1016/j.optlastec.2017.04.004
[8]	XU B Q, SHEN Z H, LU J. Numerical simulation of laser-induced transient temperature field in film-substrate system by finite element method[J]. International Journal of Heat and Mass Transfer, 2003, 46(25):4963-4968. DOI: 10.1016/S0017-9310(03)00345-4
[9]	WANG M Y, ZHOU Y J, GUO Ch. Numerical simulation of laser ultrasonic detection of surface micro-crack depth[J]. Laser Technology, 2017, 41(2):178-181(in Chinese). http://www.en.cnki.com.cn/Article_en/CJFDTOTAL-JGJS201702006.htm
[10]	LIU H, ZHEN B, WANG Zh B, et al.Time dependence of laser Rayleigh wave on detecting surface defect depth[J]. Laser & Infrared, 2017, 47(6):669-673(in Chinese). http://en.cnki.com.cn/Article_en/CJFDTOTAL-JGHW201706005.htm
[11]	MA J, ZHAO Y, GUO R, et al. Numerical simulation of temperature rise of material surface irradiated by the laser[J]. Laser Technology, 2013, 37(4):455-459(in Chinese). http://en.cnki.com.cn/Article_en/CJFDTOTAL-JGJS201304010.htm
[12]	XU B Q, SHEN Zh H, NI X W, et al. Thermal and mechanical finite element modeling of laser-generated ultrasound in coating-substrate system[J]. Optics and Laser Technology, 2006, 38(3):138-145. DOI: 10.1016/j.optlastec.2004.12.002
[13]	WANG J J, SHEN Zh H, NI X W, et al. Numerical simulation of laser-generated surface acoustic waves in the transparent coating on a substrate by the finite element method[J]. Optics and Laser Technology, 2007, 39(1):21-28. DOI: 10.1016/j.optlastec.2005.05.015
[14]	SHEN Zh H, YUAN L, ZHANG H Ch, et al. Laser ultrasound in solids[M]. Beijing:Post & Telecom Press, 2015:57-68(in Chinese).
[15]	XU B Q, SHEN Zh H, NI X W, et al. Time-frequency analysis of laser-generated ultrasonic wave in coating-substrate systems[J]. Laser Technology, 2004, 28(6):609-612(in Chinese). http://en.cnki.com.cn/Article_en/CJFDTOTAL-JGJS200406013.htm

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