Table 3 Stress levels of fatigue test specimens
Steel | No. of specimens of fatigue tests | Stress (MPa) | Percentage of UTS | |
|---|---|---|---|---|
C45 | 20 for unsurfaced | 10 for level I stress | 489.45 | 65% |
10 for level II stress | 414.15 | 55% | ||
20 for surfaced | 10 for level I stress | 489.45 | 65% | |
10 for level II stress | 414.15 | 55% | ||