Table 4 Slate HJC model parameter values.
From: Calculation method of HJC constitutive model parameters of natural joint angle slate
Angle | ρ/(kg·m−3) | G/GPa | A | B | C | N | fc/MPa | T/MPa | EPSO | Εf,min |
---|---|---|---|---|---|---|---|---|---|---|
0° | 2754 | 10.92 | 0.3470 | 1.0093 | 0.0032 | 0.8562 | 142.16 | 18.31 | 1 | 0.01 |
30° | 7.74 | 0.3288 | 0.7918 | 0.0020 | 0.7089 | 58.81 | 13.08 | |||
45° | 8.97 | 0.4623 | 0.6313 | 0.0032 | 0.3447 | 38.82 | 10.98 | |||
60° | 10.01 | 0.4570 | 0.4560 | 0.0021 | 0.5780 | 31.43 | 8.08 | |||
90° | 16.46 | 0.2105 | 1.0479 | 0.0054 | 0.9416 | 136.14 | 1.22 |
Smax | PC/GPa | μc | Pl/GPa | μl | D1 | D2 | K1/GPa | K2/GPa | K3/GPa | Fs |
---|---|---|---|---|---|---|---|---|---|---|
20 | 0.0474 | 0.0038 | 2.02 | 0.053 | 0.034 | 1 | 39 | − 223 | 550 | − 0.001 |
0.0196 | 0.0021 | 0.026 | ||||||||
0.0129 | 0.0013 | 0.022 | ||||||||
0.0105 | 0.0007 | 0.024 | ||||||||
0.0454 | 0.0015 | 0.057 |