Plate Modes Generated by Emats for NDE of Planar Flaws
The theory of SH-wave generation by electromagnetic-acoustic transducers (EMATs) and the representation of the waveform in propagating plate modes was developed in . Since then several theoretical and experimental studies have been reported that deal with SH-wave scattering by normal flaws (cracks) and its use for sizing these cracks [2–10].
KeywordsPulse Shape Signal Envelope Shear Wave Speed Array Factor Plate Mode
Unable to display preview. Download preview PDF.
- 2.S. K. Datta, C. M. Fortunko, and R. B. King, in: “1981 Ultrasonics Symposium Proceedings,” B. R. McAvoy, ed. IEEE, New York (1981).Google Scholar
- 4.C. M. Fortunko and R. E. Schramm, Welding J. 61, 39 (1982).Google Scholar
- 6.C. M. Fortunko and R. E. Schramm, J. NDE 3, 155 (1983).Google Scholar
- 7.Z. Abduljabbar and S. K. Datta, in: “Numerical Methods for Transient and Coupled Problems,” R. W. Lewis, E. Hinton, P. Betess, and B. A. Schreffer, eds., Pineridge Press, Swansea (1984).Google Scholar
- 8.Z. Abduljabbar, “Diffraction of Horizontally Polarized Shear Waves in a Plate,” Ph. D. thesis, University of Colorado, Boulder, 1983.Google Scholar
- 9.R. E. Schramm and T. A. Siewert, in: “Review of Progress in Quantitative Nondestructive Evaluation, 5B,” D. 0. Thompson and D. E. Chimenti, eds., Plenum Press, New York (1986), p. 1705.Google Scholar
- 10.R. E. Schramm and T. A. Siewert, “Sizing Canted Flaws in Weldments Using Low-Frequency EMATs,” these proceedings.Google Scholar