Table 2 Parameters used in minimizing Φ
Strain energy function | Original model (without dispersion) | modified model (with dispersion) |
|---|---|---|
Fitted parameters | c i elast = 12392 Pa | c i elast = 12468 Pa |
| Â | c a elast = 7436 Pa | c a elast = 7344 Pa |
| Â | k = 6.21 | k = 5.87 |
| Â | b = 3.26 | b = 3.53 |
|  | α = 34.2° | α = 36.2° |
|  |  | β = 217.73 |
Experimentally defined parameters | f elast = 0.10 | f elast = 0.10 |
| Â | f coll = 0.48 | f coll = 0.48 |
Imposed on model | c coll = 200 MPa | c coll = 200 MPa |
Φ | 0.188 | 0.181 |