Yw. Mao et al., Investigation on interaction of Lamb waves and circumferential notch in a pipe by means of wavelet transform, PROG NAT SC, 11, 2001, pp. S173-S176
Mode analysis of Lamb waves propagating in an aluminum alloyed pipe is carr
ied out by means of wavelet transform (WT). With the aid of this technique
the interaction of Lamb waves with a circumferential notch is investigated.
The mode conversion occurred at the location of the notch has been unambig
uously observed through a distance-dine fitting.