Research Article
A Return Mapping Algorithm for Nonlinear Yield Criteria with the Equivalent Mohr–Coulomb Strength Parameters
Table 2
The values of the updated stress obtained by the proposed method and Clausen’s method and the relative errors (nonassociated case).
| | | The predictor stress | The proposed method | Clausen’s method | Relative error (%) | | Updated stress |
| | Point A | 1149504.4 | 1147693.8 | 1147693.8 | 0 | | 50000 | 50000.0 | 50000.0 | 0 | | 20000 | 21810.6 | 21810.6 | 0 | | 1179504.4 | 1175813.2 | 1175813.2 | 0 | | 70000 | 70000.0 | 70000.0 | 0 | | 30000 | 33691.2 | 33691.2 | 0 |
| | Point B | 1149504.4 | 1152139.6 | 1152139.6 | 0 | | 1139504.4 | 1152139.6 | 1152139.6 | 0 | | 20000 | 23682.4 | 23682.4 | 0 | | 1179504.4 | 1184630.8 | 1184630.8 | 0 | | 1159504.4 | 1184630.8 | 1184630.8 | 0 | | 30000 | 37436.8 | 37436.8 | 0 |
| | Point C | 1149504.4 | 1156701.5 | 1156701.5 | 0 | | 30000 | 25605.7 | 25605.7 | 0 | | 20000 | 25605.7 | 25605.7 | 0 | | 1179504.4 | 1193827.6 | 1193827.6 | 0 | | 50000 | 41353.6 | 41353.6 | 0 | | 30000 | 41353.6 | 41353.6 | 0 |
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