Journal of Mechanical Science and Technology

, Volume 27, Issue 11, pp 3207–3214

Numerical simulation of ultrasonic minimum reflection for residual stress evaluation in 2D case

  • Maodan Yuan
  • To Kang
  • Jianhai Zhang
  • Sung-Jin Song
  • Hak-Joon Kim
Article

DOI: 10.1007/s12206-013-0843-y

Cite this article as:
Yuan, M., Kang, T., Zhang, J. et al. J Mech Sci Technol (2013) 27: 3207. doi:10.1007/s12206-013-0843-y

Abstract

A number of interesting phenomena at fluid-solid interfaces can be observed when the incident angle approaches the Rayleigh angle, including Schoch displacement and leaky Rayleigh waves. Besides the experimental and theoretical research on these problems, numerical tools have been more and more widely used for these complex problems. Based on previous experimental and numerical researches, a 2D finite element model has been built to reproduce the Schoch effects. With the same model, the minimum reflection profile is investigated for the feasibility of material characterization, especially for residual stress evaluation. Residual stress is one of the important properties for structures, and its measurement is a popular research topic in nondestructive evaluation. However, it is not possible to put the residual stress into the numerical model directly. According to the relation of residual stress with mechanical properties, the material damping and wave speed have been alternatively adopted in this work. The influence of minimum reflection profile by residual stress has been shown by the change of wave speed and damping factor. Simulation results show that the minimum reflection profile is a potential method for residual stress evaluation.

Keywords

Rayleigh angleSchoch effectMinimum reflection profileMaterial dampingResidual stress

Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Maodan Yuan
    • 1
  • To Kang
    • 1
    • 2
  • Jianhai Zhang
    • 1
  • Sung-Jin Song
    • 1
  • Hak-Joon Kim
    • 1
  1. 1.School of Mechanical EngineeringSungkyunkwan UniversitySuwonKorea
  2. 2.Nuclear Convergence Technology Development DivisionKorea Atomic Energy Research Institute (KAERI)Yusung GuKorea