结构性软土弹塑性模型的隐式算法实现

耿大将, Peijun Guo, 周顺华

Implicit numerical integration of an elasto-plastic constitutive model for structured clays

Dajiang Geng, Peijun Guo, Shunhua Zhou

表1 计算结果对比表

Table 1 Comparison of calculation results

Algorithm ${{I}_{n}}$ ${{C}_{ov}}$ ${t}'$/s ${{q}_{f}}$/kPa ${{q}_{t}}$/kPa. explicit 10-1 × × × × 10-2 √ 2.70 68.11 69.78 10-3 √ 31.60 61.53 42.02 10-4 √ 397.30 60.93 41.15 traditional implicit 10-1 × \ \ \ 10-2 × \ \ \ 10-3 × \ \ \ 10-4 √ 504.30 62.38 33.21 homotopy-Newton-CPPM 10-1 √ 233.70 61.20 34.46 10-2 √ 35.70 62.25 33.37 10-3 √ 50.70 62.37 33.22 10-4 √ 512.40 62.38 33.21 two-stage iterative 10-1 × \ \ \ 10-2 × \ \ \ 10-3 √ 20.60 62.37 33.22 10-4 √ 269.90 62.38 33.21