Simultaneous measurement of thickness and bulk wave velocities of thin plates using laser-excited local ultrasonic resonances

被引：2
作者：
Li, Yehai [1 ,2 ,3 ]
Guo, Zhengyue [1 ]
He, Yi [4 ]
Wang, Kai [5 ]
Su, Zhongqing [4 ]
Guo, Shifeng [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Smart Sensing & Intelligent Syst, Shenzhen 518055, Peoples R China
[2] Chinese Acad Sci, Shenzhen Inst Adv Technol, Guangdong Prov Key Lab Robot & Intelligent Syst, Shenzhen 518055, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[4] Hong Kong Polytech Univ, Dept Mech Engn, Hung Hom, Kowloon, Hong Kong 999077, Peoples R China
[5] Xiamen Univ, Sch Elect Sci & Engn, Xiamen 361005, Peoples R China
来源：
MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2025年 / 228卷
基金：
中国国家自然科学基金;
关键词：
Laser ultrasound; Local ultrasonic resonances; zero-group-velocity Lamb waves; Bulk wave velocities; Thickness; SOUND-VELOCITY; ELASTIC-CONSTANTS; PHASE-VELOCITY; LAMB WAVES; ATTENUATION; DENSITY; MODULI; TRANSFORM; ROUGHNESS;
D O I：
10.1016/j.ymssp.2025.112442
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Ultrasonic characterization techniques have been widely used for plates or plate-like structures in industrial applications and research development. Complex real situations pose challenges to the existing methods, such as in-situ measurement for fast and in-service evaluation, simultaneous determination of thickness and wave velocity when both variables are uncertain, multi-mode characterization for complete elastic properties, and local measurement for inhomogeneous variations. This study is based on non-contact laser ultrasound, utilizing the wideband characteristics to obtain the multi-mode local ultrasonic resonance spectrum of thin plates, including bulk wave-based thickness resonance modes and zero-group-velocity (ZGV) Lamb wave resonance modes. Firstly, theoretical solutions of local ultrasonic resonances are obtained in the dimensionless form with Poisson's ratio as the only variable. Secondly, a modified least-square minimization algorithm is used to search the theoretical solutions with multiple experimental resonant frequencies. Then, Poisson's ratio and relative wave velocities with respect to the thickness can be calculated. Finally, the spatial distribution of the first ZGV mode is measured by limited local scanning around the excitation spot. Through matching the theoretical wavefield pattern, the thickness is obtained and wave velocities are decoupled. This method can be applied to thin structures with only single-side access. The local scanning range required is no more than one wavelength of the first ZGV mode or twice the thickness for most usual materials, rendering local measurement for thin structures. The influence of the spot size of the excitation laser is discussed theoretically and experimentally. Such a method can be used to image the non-uniform thickness and elastic properties, such as localized plastic deformation.
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页数：20
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共 79 条
  • [1] Kai Y., Dhulipala S., Sun R., Lem J., DeLima W., Pezeril T., Portela C.M., Dynamic diagnosis of metamaterials through laser-induced vibrational signatures, Nature, 623, pp. 514-521, (2023)
  • [2] Khaled A., Brand S., Kogel M., Appenroth T., De Wolf I., Investigating stress measurement capabilities of GHz Scanning Acoustic Microscopy for 3D failure analysis, Microelectron. Reliab., 64, pp. 336-340, (2016)
  • [3] Hsu D.K., Hughes M.S., Simultaneous ultrasonic velocity and sample thickness measurement and application in composites, J. Acoust. Soc. Am., 92, pp. 669-675, (1992)
  • [4] Sato H., Kolosov O.V., Nagata Y., Koda T., Yamanaka K., Acoustic Imaging of Plate Thickness and Sound Velocity during Tensile Testing at Low Temperature, Jpn. J. Appl. Phys., 33, (1994)
  • [5] Kiefer D.A., Fink M., Rupitsch S.J., Simultaneous Ultrasonic Measurement of Thickness and Speed of Sound in Elastic Plates Using Coded Excitation Signals, IEEE Trans. Ultrason. Ferroelectr. Freq. Control, 64, pp. 1744-1757, (2017)
  • [6] Lo Savio F., Bonfanti M., A novel device for measuring the ultrasonic wave velocity and the thickness of hyperelastic materials under quasi-static deformations, Polym. Test., 74, pp. 235-244, (2019)
  • [7] Hartmann B., Jarzynski J., Immersion apparatus for ultrasonic measurements in polymers, J. Acoust. Soc. Am., 56, pp. 1469-1477, (1974)
  • [8] Rokhlin S.I., Wang W., Double through‐transmission bulk wave method for ultrasonic phase velocity measurement and determination of elastic constants of composite materials, J. Acoust. Soc. Am., 91, pp. 3303-3312, (1992)
  • [9] Hanel V., Measurement of sound velocity and thickness of thin samples by time-resolved acoustic microscopy, J. Appl. Phys., 84, pp. 668-670, (1998)
  • [10] Maebayashi M., Matsuoka T., Koda S., Hashitani R., Nishio T., Kimura S.-I., Study on polystyrene thin film on glass substrate by scanning acoustic microscope, Polymer, 45, pp. 7563-7569, (2004)
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