Subsurface defect detection using phase evolution of line laser-generated Rayleigh waves

Chen，Dan1,2,3; Lv，Gaolong1,2,3; Guo，Shifeng1,2,3; Zuo，Rui1,2,3; Liu，Yanjun4; Zhang，Kaixing5; Su，Zhongqing6; Feng，Wei1,2,3

2020-11-01

10.1016/j.optlastec.2020.106410

OPTICS AND LASER TECHNOLOGY   影响因子和分区

0030-3992

1879-2545

An unreported phenomenon of phase evolution of Rayleigh ultrasonic waves with subsurface defects is observed and systematically explored for detection of subsurface defects using non-contact line laser ultrasonic technique and numerical simulation. The mechanism of phase evolution of Rayleigh wave signals is explained by the interference of the reflected and direct Rayleigh wave, explored by finite element analysis. Both experiments and simulation show distinct peak evolution of the Rayleigh wave signals with the width and depth of subsurface defect. A dimensionless parameter (|Neg|/Pos), defined by the ratio of absolute negative peak to positive peak of Rayleigh wave, is proposed to evaluate the phase evolution of Rayleigh wave with defect width and depth, which is further used to quantify the subsurface defects. The phase evolution of Rayleigh waves can act as a robust and sensitive feature to detect subsurface defects using laser-generated ultrasound, which has promising applications in life prediction and health monitoring of various engineering structures.

Laser ultrasonics Nondestructive evaluation Phase evolution Rayleigh wave Subsurface defects

SCI ; EI

英语

其他

National Natural Science Foundation of Guangdong[2016A030313177] ; Guangdong Frontier and Key Technological Innovation[2017B090910013] ; Science and Technology Innovation Commission of Shenzhen[ZDSYS20190902093209795][JCYJ20170818153048647][JCYJ20180507182239617]

Optics ; Physics

Optics ; Physics, Applied

WOS:000564907600004

ELSEVIER SCI LTD

20202508844325

Ultrasonic testing ; Structural health monitoring ; Nondestructive examination ; Defects

Strength of Building Materials; Test Equipment and Methods:422 ; Seismology:484 ; Ultrasonic Applications:753.3 ; Materials Science:951

ENGINEERING

2-s2.0-85086429017

Scopus

1.Shenzhen Key Laboratory of Smart Sensing and Intelligent Systems,Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen,518055,China
2.Guangdong Provincial Key Lab of Robotics and Intelligent System,Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen,518055,China
3.CAS Key Laboratory of Human-Machine Intelligence-Synergy Systems,Shenzhen Institutes of Advanced Technology,Shenzhen,518055,China
4.Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,518055,China
5.College of Mechanical and Electronic Engineering,Shandong Agricultural University,Tai'an,271018,China
6.Department of Mechanical Engineering,The Hong Kong Polytechnic University,Kowloon,Hung Hom,999077,Hong Kong

Chen，Dan,Lv，Gaolong,Guo，Shifeng,et al. Subsurface defect detection using phase evolution of line laser-generated Rayleigh waves[J]. OPTICS AND LASER TECHNOLOGY,2020,131.

Chen，Dan.,Lv，Gaolong.,Guo，Shifeng.,Zuo，Rui.,Liu，Yanjun.,...&Feng，Wei.(2020).Subsurface defect detection using phase evolution of line laser-generated Rayleigh waves.OPTICS AND LASER TECHNOLOGY,131.

Chen，Dan,et al."Subsurface defect detection using phase evolution of line laser-generated Rayleigh waves".OPTICS AND LASER TECHNOLOGY 131(2020).