Table 3 Experimental parameters and CTOD value.
Sample geometry | SENB | SENB |
|---|---|---|
Notch side | Inconel 825 | SS316L |
Orientation | L–T | L–T |
Thickness (B) mm | 10.24 | 10.20 |
Width (W) mm | 20.02 | 20.06 |
Notch length (a0) mm | 7.00 | 7.00 |
Terminal pre-cracking force (Pf) kN | 2.66 | 2.34 |
Number of cycles | 39,684 | 36,802 |
Final crack length (a) mm | 9.43 | 9.67 |
Maximum load value at fracture (Pmax) kN | 5.37 | 4.55 |
Crack tip opening displacement (CTOD) mm | 0.853 | 0.873 |
Fracture toughness (KIC) | 36 Mpa\(\sqrt {\mathbf{m}}\) | 31.6 Mpa\(\sqrt {\mathbf{m}}\) |
