Table 4.
Comparison of von Mises stress (MPa) for EPDM and LSR across different aging conditions using Mooney–Rivlin, Ogden, and Yeoh models.
| Location | EPDM | LSR | ||||
|---|---|---|---|---|---|---|
| Mooney–Rivlin | Ogden | Yeoh | Mooney–Rivlin | Ogden | Yeoh | |
| No Aging | ||||||
| 1st Anode | 4.71 | 24.54 | 2.04 | 7.93 | 73.46 | 16.11 |
| 1st Cathode Up | 14.96 | 78.40 | 7.26 | 24.17 | 245.18 | 49.64 |
| 1st Cathode Down | 15.59 | 77.12 | 7.19 | 24.68 | 229.84 | 48.83 |
| Heat | ||||||
| 1st Anode | 4.74 | 24.41 | 1.89 | 7.98 | 82.61 | 13.92 |
| 1st Cathode Up | 15.18 | 76.30 | 5.82 | 24.37 | 277.51 | 43.22 |
| 1st Cathode Down | 15.64 | 75.30 | 6.58 | 24.61 | 260.11 | 39.23 |
| Heat + Sulfuric Acid | ||||||
| 1st Anode | 5.19 | 5.04 | 2.33 | 1.74 | 1.55 | 1.50 |
| 1st Cathode Up | 16.25 | 16.68 | 8.42 | 6.16 | 5.50 | 5.41 |
| 1st Cathode Down | 16.52 | 17.03 | 8.51 | 6.10 | 5.58 | 5.34 |