Table 9.
Fitting results in terms of fitted scaling parameters and measures of goodness of fit for the two example cases executed using the reduced HO constitutive law with parameters from literature [39] (no init) as initial guess and with an MFF initialization step (init). Outcomes of the CFF method, optimizing one, two, or three parameters, nopt = {1, 2, 3}, are listed with number of iterations (it.) of the Nelder–Mead algorithm.
Case 06-CoA | Case 03-AS | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Fitted Parameters | Goodness of Fit | Fitted Parameters | Goodness of Fit | ||||||||||
Mode | n opt | it. | a scale | r V0,rel | r An,rel | it. | a scale | r V0,rel | r An,rel | ||||
[% Aklotz] | [% Aklotz] | ||||||||||||
init | 1 | 17 | 0.3475 | 0.5000 | 0.5000 | 0.027 | 11.13 | 9 | 0.2982 | 0.5000 | 0.5000 | 0.024 | 14.72 |
2 | 46 | 0.2365 | 0.6493 | 0.6493 | 0.002 | 8.30 | 73 | 0.2588 | 0.5252 | 0.5252 | 0.001 | 15. 43 | |
3 | 94 | 0.2371 | 0.6827 | 0.6274 | 0.001 | 8.20 | 78 | 0.2571 | 0.5524 | 0.5144 | 0.002 | 15.59 | |
no init | 1 | 20 | 0.3477 | 0.5000 | 0.5000 | 0.025 | 11.15 | 22 | 0.2969 | 0.5000 | 0.5000 | 0.016 | 14.72 |
2 | 41 | 0.5427 | 0.3255 | 0.3255 | 0.009 | 28.13 | 80 | 0.2587 | 0.5252 | 0.5252 | 0.000 | 15. 40 | |
3 | 130 | 0.2382 | 0.7321 | 0.5948 | 0.008 | 8.43 | 167 | 0.2588 | 0.5979 | 0.4881 | 0.001 | 15.03 |