Multi-mode Lamb wave tomography with arrival time sorting.

  title={Multi-mode Lamb wave tomography with arrival time sorting.},
  author={Kevin R. Leonard and Mark K. Hinders},
  journal={The Journal of the Acoustical Society of America},
  volume={117 4 Pt 1},
Lamb wave tomography has been shown to be an effective nondestructive evaluation technique for platelike structures. A series of pitch-catch measurements between ultrasonic transducers can be taken from different orientations across the sample to create a map of a particular feature of interest such as plate thickness. Most previous work has relied solely on the first arriving mode for the time-of-flight measurements and tomographic reconstructions. The work described here demonstrates the… CONTINUE READING
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