Laser Generation of Lamb Waves for Defect Detection: Experimental Methods and Finite Element Modeling

被引：30
作者：
Burrows, Susan E. [1 ]
Dutton, Ben
Dixon, Steve [1 ]
机构：
[1] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England
来源：
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 2012年 / 59卷 / 01期
基金：
英国工程与自然科学研究理事会;
关键词：
DAMAGE DETECTION; CRACKS;
D O I：
10.1109/TUFFC.2012.2158
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The propagation of Lamb waves generated by a pulsed laser beam in an aluminum sheet is modeled using finite element analysis, and the interaction with defects is studied and compared to experimental results. The ultrasonic Lamb waves are detected by an electromagnetic acoustic transducer (EMAT). The frequency content of the received wave is shown to be enhanced when the generation point is situated directly over the defect in both the modeled and experimental cases. Time-frequency analysis using a Wigner transform has enabled individual modes to be identified.
引用
收藏
页码：82 / 89
页数：8
相关论文
共 28 条
  • [1] Finite element modeling for ultrasonic transducers
    Abboud, NN
    Wojcik, GL
    Vaughan, DK
    Mould, J
    Powell, DJ
    Nikodym, L
    [J]. ULTRASONIC TRANSDUCER ENGINEERING: MEDICAL IMAGING 1998, 1998, 3341 : 19 - 42
  • [2] Thermoelastic generation of ultrasound by line-focused laser irradiation
    Arias, I
    Achenbach, JD
    [J]. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2003, 40 (25) : 6917 - 6935
  • [3] Localization of notches with Lamb waves
    Benz, R
    Niethammer, M
    Hurlebaus, S
    Jacobs, LJ
    [J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2003, 114 (02) : 677 - 685
  • [4] Hybrid laser/broadband EMAT ultrasonic system for characterizing cracks in metals
    Bernstein, JR
    Spicer, JB
    [J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2002, 111 (04) : 1685 - 1691
  • [5] Birnbaum G., 1984, RES TECHNIQUES NONDE
  • [6] TRANSIENT GENERATION BY A WIDE THERMOELASTIC SOURCE AT A SOLID-SURFACE
    BRESSE, LF
    HUTCHINS, DA
    [J]. JOURNAL OF APPLIED PHYSICS, 1989, 65 (04) : 1441 - 1446
  • [7] Combined laser spot imaging thermography and ultrasonic measurements for crack detection
    Burrows, S. E.
    Rashed, A.
    Almond, D. P.
    Dixon, S.
    [J]. NONDESTRUCTIVE TESTING AND EVALUATION, 2007, 22 (2-3) : 217 - 227
  • [8] COMBINED THERMOGRAPHY AND NONCONTACT ULTRASOUND INSPECTION TECHNIQUES USING PULSED LASER EXCITATION
    Burrows, S. E.
    Dixon, S.
    Li, T.
    Almond, D.
    [J]. REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 29A AND 29B, 2010, 1211 : 510 - +
  • [9] The use of Lamb waves for the long range inspection of large structures
    Cawley, P
    Alleyne, D
    [J]. ULTRASONICS, 1996, 34 (2-5) : 287 - 290
  • [10] Cawley P, 2003, MATER EVAL, V61, P66
123