Journal of the Korean Society for Nondestructive Testing (비파괴검사학회지)

The Korean Society for Nondestructive Testing (한국비파괴검사학회)
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Two-Dimensional Numerical Modeling and Simulation of Ultrasonic Testing

  • Yim, Hyun-June (Department of Mechanical Engineering, Hong-Ik University) ;
  • Baek, Eun-Sol (Department of Mechanical Engineering, Hong-Ik University)
  • Published : 2002.12.30
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Abstract

As an attempt to further improve the reliability and effectiveness of ultrasonic testing (UT), a two-dimensional numerical simulator of UT was developed. The simulator models the wave medium (or test object) using the mass-spring lattice model (MSLM) that consists of mass-points and springs. Some previous simulation results, obtained by using MSLM, are briefly reviewed in this paper, for propagation, reflection, and scattering of ultrasonic waves. Next, the models of transmitting and receiving piezoelectric transducers are introduced with some numerical results, which is a main focus of this paper. The UT simulator, established by combining the transducer models with the MSLM, was used to simulate many UT setups. In this paper, two simple setups are considered as examples, and their simulated A-scan signals are discussed. The potential of the MSLM, transducer models, and the UT simulator developed in this study to be used in the actual UT is confirmed.

Keywords

References

  1. Bostrom, A, and Wirdelius, H. (1995), 'Ultrasonic probe modeling and nondestructive crack detection', Joumal of the Acoustical Society of America, Vol. 97, No.5, pp. 2836-2848 https://doi.org/10.1121/1.411850
  2. Datta, S. K., Achenbach, J. D., and Rajapakse, Y. S. (1990) Elastic Waves and Ultrasonic Nondestructive Evaluation, North-Holland, Amsterdam
  3. Graff, K. F. (1991) Wave Motion in Elastic Solids, Dover, New York
  4. Lorraine, P. W. (1998) 'Laser Ultrasonic Imaging of Lamb Waves in Thin Plates', Nondestructive Characterization of Materials, Vol. 8, Ed. R. E. Green, Jr., pp. 67-72
  5. Schmerr, Jr., L. W. (1998) Fundamentals of Ultrasonic Nondestructive Evaluation, Plenum, New York
  6. Silk, M. G. (1984) Ultrasonic Transducers for Non-destructive Testing, Adam Hilger, Bristol
  7. Song, S. J., Kim, H. J., Choi, S. H., and Lee, J. H. (1997) 'Classification of Surface Flaws in Cold-Rolled Steel Plates Using Probabilistic Neural Network', Journal of the Korean Society for Nondestructive Testing, Vol. 17, No.3, pp. 162-173 (in Korean)
  8. Yim, H. and Choi, Y. (2000) 'Simulation of ultrasonic waves in various types of elastic media using the mass spring lattice model', Material Evaluation, Vol. 58, No.7, pp. 889-896
  9. Yim, H, and Choi, Y. (2001) 'Simulation of Two-dimensional Propagation and Scattering of Ultrasonic Waves on Personal Computers', Review of Quantitative Nondestructive Evaluation, Vol. 20, Eds. D. O. Thompson and D. E. Chimenti, pp. 59-64
  10. Yim, H., and Lee, C. (2001) 'A Computer Model for Ultrasonic Wave Scattering from Cracks in Welds', Proceedings of MPA-SAFE Workshop on Safety Evaluation of Nuclear Power Plant Components, SAFE, Korea, pp. 1-10
  11. Yim, H. and Sohn, Y. (2000) 'Numerical simulation and visualization of elastic waves using massspring lattice model', IEEE Trans. on UFFC, Vol. 47, No.3, pp. 549-558 https://doi.org/10.1109/58.842041