Research Article
Investigation of Stress Concentration and Casing Strength Degradation Caused by Corrosion Pits
Table 1
Results of photoelastic experiment.
| Category | Center distance ratio | Outer edges | Pits bottom | Junction | | | | | Average | | | Average |
| Single pit | 0 | 1.22 | 1.20 | 1.21 | | | 1.93 | | 1.93 | Double pits | 1.0 | 1.72 | 1.65 | 1.68 | 2.26 | 2.26 | 2.26 | 2.40 | 2.40 | 1.5 | 1.75 | 1.72 | 1.74 | 2.42 | 2.37 | 2.40 | 2.83 | 2.83 | 2.0 | 1.55 | 1.52 | 1.54 | 2.22 | 2.23 | 2.23 | 2.79 | 2.79 | 3.0 | 1.50 | 1.45 | 1.48 | 2.05 | 2.12 | 2.09 | 1.30 | 2.09 |
|
|