Table 1
Examples of sets of parameters checked during the inverse approach showing the best fit for the young subject (Set 5) and for the elderly subject (Set 111). The instantaneous Young modulus is defined by E0 = E1 + E∞ in MPa.
| Young subject |
Elderly subject |
|||||
|---|---|---|---|---|---|---|
| Set 2 | Set 3 | Set 5 | Set 101 | Set 102 | Set 111 | |
| ESC (MPa) | 14 | 14 | 14 | 5 | 5 | 5 |
| EVE (MPa) | 0.06 | 0.06 | 0.06 | 0.03 | 0.03 | 0.03 |
| EDE (MPa) | 0.03 | 0.04 | 0.038 | 0.01 | 0.016 | 0.014 |
| EHY (MPa) | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 |
| E∞ (MPa) | 1.817E-3 | 1.845E-3 | 1.841E-3 | 1.578E-3 | 1.677E-3 | 1.653E-3 |
| E1 (MPa) | 2.900E-3 | 2.900E-3 | 2.900E-3 | 1.740E-3 | 1.740 E-3 | 1.7400E-3 |
| E0 (MPa) | 4.717 E-3 | 4.745E-3 | 4.741E-3 | 3.318E-3 | 3.417E-3 | 3.393E-3 |
| GV (MPa) | 0.001 | 0.001 | 0.001 | 0.0006 | 0.0006 | 0.0006 |
| ηd (MPa s) | 0.0003 | 0.0003 | 0.0003 | 0.02 | 0.02 | 0.02 |
| Relative error | 4.91% | 5.72% | 4.50% | 9.19% | 8.58% | 3.11% |