• DocumentCode
    2229671
  • Title

    Evaluation of defect root radius by ultrasound

  • Author

    Sinclair, Anthony N. ; Wang, Huifang ; Mair, Douglas

  • Author_Institution
    Dept. of Mech. Eng., Toronto Univ., Ont.
  • fYear
    1993
  • fDate
    31 Oct-3 Nov 1993
  • Firstpage
    745
  • Abstract
    A method for estimating the root radius of curvature at the root of a surface breaking defect is investigated. The technique is based on the dependence of an ultrasonic diffraction pattern on the radius to wavelength ratio. The concept is applied to the case of a fretting wear mark found in pressure tubes of CANDU nuclear reactors; results are analyzed using a wavelet transform to display the key frequency data
  • Keywords
    fission reactor safety; ultrasonic diffraction; ultrasonic materials testing; CANDU reactor; defect root; frequency; fretting wear mark; pressure tubes; radius of curvature; surface breaking defect; ultrasonic diffraction; wavelet transform; Acoustic diffraction; Acoustic scattering; Displays; Frequency estimation; Fuels; Mechanical engineering; Surface cracks; Ultrasonic imaging; Wavelet analysis; Wavelet transforms;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Ultrasonics Symposium, 1993. Proceedings., IEEE 1993
  • Conference_Location
    Baltimore, MD
  • Print_ISBN
    0-7803-2012-3
  • Type

    conf

  • DOI
    10.1109/ULTSYM.1993.339514
  • Filename
    339514