Sample | Groove depth [mm] | Force to failure [N] | Bending stress [MPa] | KIc [MPa·m1/2] |
1 | 0.04 | 697 | 123 | 7.8 |
2 | 0.023 | 973 | 172 | 6.3 |
3 | 0.049 | 964 | 170 | 13.1 |