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

Table 3

Crack sensitivity W.

Frequency (Hz)	Mode no.	W
60,000	2	0.8354
60,000	1	0.8352
50,000	2	0.8303
50,000	1	0.8300
40,000	2	0.8236
40,000	1	0.8231
30,000	2	0.8139
30,000	1	0.8132
20,000	2	0.7975
20,000	1	0.7961
50,000	5	0.7665
30,000	7	0.7619
30,000	4	0.7609
40,000	4	0.7583
60,000	5	0.7581
40,000	5	0.7579
50,000	4	0.7548
60,000	4	0.7517
60,000	12	0.7441
40,000	21	0.7363