Research Article
New Maxwell Creep Model Based on Fractional and Elastic-Plastic Elements
Table 2
Parameters determined through fitting the analysis based on creep test results of remolded loess.
| New Maxwell creep model | σ1 – σ3 (kPa) | G (kPa) | K (kPa) | ξ′(kPa·hβ) | β | α | σs (kPa) | tF (h) | R2 | 122 | 29856.761 | 742.362 | 0.018 | 0.041 | | | | 0.974 | 244 | 209.192 | 91.334 | 0.003 | 0.097 | | | | 0.975 | 366 | 5832.610 | 42.649 | 0.001 | 0.181 | | | | 0.954 | 488 | 90.682 | 345.728 | 0.0008 | 0.332 | | | | 0.978 | 550 | 2702.403 | 33.217 | 0.005 | 0.456 | 0.785 | 490 | 6.3 | 0.998 |
| Burgers model | σ1 – σ3 (kPa) | G0 (kPa) | K (kPa) | Gk (kPa·h) | ηk (kPa·h) | η (kPa·h) | | | R2 | 550 | 105.281 | 48.865 | 0.235 | 25516.903 | 431.671 | | | 0.767 |
| Nishihara model | σ1 – σ3 (kPa) | G0 (kPa) | K (kPa) | Gk (kPa·h) | ηk (kPa·h) | ηs (kPa·h) | σs (kPa) | | R2 | 550 | 80.301 | 71.612 | 0.155 | 28047.865 | 47.019 | 490 | | 0.797 |
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