From: Static fracture and modal analysis simulation of a gas turbine compressor blade and bladed disk system
Mode number
Uncracked
4Â mm crack depth
8Â mm crack depth
16Â mm crack depth
1
404.3
403.5
398.1
390.8
2
1061.0
1057.4
1031.9
992.5
3
1122.8
1120.6
1111.8
1103.1
4
2151.4
2145.7
2104.5
2054.7
5
2308.5
2309.8
2260.3
2219.5
6
2795.1
2800.9
2769
2739.7