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Volume 38 Issue 2
Mar.  2014
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Mixed stress-displacement finite element method for laser-generated ultrasound

  • Received Date: 2013-04-11
    Accepted Date: 2013-04-23
  • In order to study the generation and propagation of laser-generated ultrasound in isotropic semi-infinite aluminum material, a laser-generated ultrasound in an arbitrary elastic semi-infinite medium model was established by using mixed stress-displacement finite element method and perfectly matched layer(PML). The transient wave snapshots and surface normal displacement waveforms in semi-infinite aluminum materials were obtained. The surface normal displacement waveforms were compared with the same geometrical finite element model. The results show that the mixed stress-displacement finite element method can effectively eliminate reflection waves from truncated boundary, and simulate the generation and propagation of ultrasound in semi-infinite solid material accurately. The simulation results provide an effective method for research of the laser-generated ultrasound waves in micro-nanostructure by picosecond or femtosecond laser irradiation.
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  • [1]

    ROSSIGNOL C, PERRIN B, LABORDE S, et al. Nondestructive evaluation of micrometric diamond films with an interferometric picosecond ultrasonics technique[J]. Journal of Applied Physics, 2004, 95(8): 4157-4162.
    [2]

    KUNDU T. Ultrasonic nondestructive evaluation:engineering and baiological material characterization[M].Boca Raton,Florida,USA:CRC Press,2004: 435-494.
    [3]

    DAI Y, XU B Q, LOU Y, et al. Finite element modeling of the interaction of laser-generated ultrasound with a surface-breaking notch in an elastic plate[J]. Optics & Laser Technology, 2010,42(8):693-697.
    [4]

    SOHN Y, KRISHNASWAMY S. Scaning laser line source technique using monopolar Rayleigh waves[J]. American Institute of Physics, 2004, 700 (1): 278-285.
    [5]

    LIU J S, XU Z H, GU G Q. Numerical study on improvement of signal-to-noise ratio of surface acoustic waves based on laser array[J]. Laser Technology, 2011, 35(3): 403-406(in Chinese).
    [6]

    SUN H X, XU B Q. Numerical analysis of laser-generated lamb wave by finite element method in time and frequency domain[J]. Chinese Journal of Lasers, 2010, 37(2):537-542(in chinese).
    [7]

    JOHNSON C. Numerical solution of partial differential equations by the finite element methods[M]. New York,USA:Cambridge University Press, 1987: 14-48.
    [8]

    XU B Q, SHEN Z H, WANG J J, et al. Thermoelastic finite element modeling of laser generation ultrasound[J]. Journal of Applied Physics, 2006, 99(3):033508.
    [9]

    GIVOLI D, KELLER J B. Non-reflecting boundary conditions for elastic waves[J]. Wave Motion, 1990, 12(3): 261-279.
    [10]

    BASU U, CHOPRA A K. Perfectly matched layers for transient elastodynamics of unbounded domains[J]. International Journal for Numerical Methods in Engineering, 2004, 59(8): 1039-1074.
    [11]

    BERENGER J P. A perfectly matched layer for the absorption of electromagnetic waves[J]. Journal of Computational Physics, 1994, 114 (2): 185-200.
    [12]

    FESTA G, NIELSEN S. PML absorbing boundaries[J]. Bulletin of the Seismological Society of America Definition,2003, 93 (2):891-903.
    [13]

    KUCUKCOBAN S, KALLIVOKAS L F. Mixed perfectly matched layers for direct transient analysis in 2-D elastic heterogeneous media[J]. Computer Methods in Applied Mechanics and Engineering, 2011, 200(1/4):57-76.
    [14]

    XU B Q, SHEN Z H, NI X W, et al. Numerical simulation of laser-generated ultrasound by the finite element method[J]. Journal of Applied Physics, 2004, 95(4):2116-2122.
    [15]

    DOYLE P A, SCALA C M. Near-field ultrasonic Rayleigh waves from a laser line source[J]. Ultrasonics, 1996, 34(1):1-8.
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Mixed stress-displacement finite element method for laser-generated ultrasound

  • 1. Faculty of Science, Jiangsu University, Zhenjiang 212013, China;
  • 2. School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China

Abstract: In order to study the generation and propagation of laser-generated ultrasound in isotropic semi-infinite aluminum material, a laser-generated ultrasound in an arbitrary elastic semi-infinite medium model was established by using mixed stress-displacement finite element method and perfectly matched layer(PML). The transient wave snapshots and surface normal displacement waveforms in semi-infinite aluminum materials were obtained. The surface normal displacement waveforms were compared with the same geometrical finite element model. The results show that the mixed stress-displacement finite element method can effectively eliminate reflection waves from truncated boundary, and simulate the generation and propagation of ultrasound in semi-infinite solid material accurately. The simulation results provide an effective method for research of the laser-generated ultrasound waves in micro-nanostructure by picosecond or femtosecond laser irradiation.

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