Research Article
Experimental Study on the Relationship between the Natural Frequency and the Corrosion in Reinforced Concrete Beams
Table 3
Optimizing curve fit for deflection (
) and corrosion time (
).
| Type of fit | General expression | SSE (mm) | R-square |
| Exponential | | 0.00015 | 0.9858 | | 0.00002 | 0.9981 |
| Polynomial | | 0.00024 | 0.9775 | | 0.00006 | 0.9948 | | 0.00003 | 0.9968 |
| Power | | 0.00137 | 0.8709 | | 0.00006 | 0.9941 |
|
|