Research Article
Performance Deterioration of Heavy-Haul Railway Bridges under Fatigue Loading Monitored by a Multisensor System
Figure 9
Damage evolution, its related parameters (e.g., Df, De,f, A, and k), and predictions.
| (a) D-N (specimen numbers 3–11) |
| (b) DE-N (specimen numbers 3–11) |
| (c) Di-N (specimen numbers 3–11) |
| (d) De-N (specimen numbers 3–11) |
| (e) D-N during the second stage |
| (f) A-L (second stage) |
| (g) Df and De,f-L (specimen numbers 4–11) |
| (h) k-L (specimen numbers 4, 5, 8, 9, and 11) |
| (i) D-N predicted |
| (j) DE-N predicted |
| (k) P-f (load level L = 0.50) predicted |