40 Localization of Acoustic Emission Sources …
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Fig. 40.3 Crescent rib and K-shaped weld
(a) Group velocities
(b) Phase velocity
Fig. 40.4 Dispersion curves for a steel plate thickness of 50 mm (V L = 5900 m/s, V S = 3230 m/s)
Fig. 40.5 Source location
for two sensors
x
S 0 (x 0 ,y 0 )
lx
S A
l
S B
l B
l A
0
l/2
y
A(-c,0)
B(c,0)
Sc(xc,yc)