Mode Selection Model for Rail Crack Detection Based on Ultrasonic Guided Waves

Table 8

Nondispersion characteristics W₃.

Frequency (Hz)	Mode no.	W3
60000	7	1
60000	8	0.93
50000	7	0.72
50000	8	0.70
60000	9	0.61
40000	7	0.59
60000	10	0.57
60000	11	0.57
60000	3	0.54
50000	9	0.53
60,000	4	0.53
50,000	11	0.52
60,000	1	0.52
60,000	2	0.51
60,000	22	0.51
40,000	8	0.50
60,000	6	0.50
40,000	9	0.50
50,000	3	0.49
50,000	4	0.47