Open Access
Table 2.
Parameters of materials’ properties.
| Group | Strength coefficient K (MPa) | Strain hardening index n | Elastic modulus E (GPa) |
|---|---|---|---|
| 1 | 1771 ~ 1908 | 0.324 ~ 0.405 | 189.0 ~ 220.0 |
| 2 | 959.3 ~ 1073 | 0.212 ~ 0.249 | 185.7 ~ 221.7 |
| 3 | 957.1 ~ 1068 | 0.227 ~ 0.294 | 183.3 ~ 216.9 |
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