Table 2.
Material properties used to replace the mean NP, CEP, or AF property from Table 1 to evaluate the effect of altered NP or CEP property on the disc response to axial loading.
| Material property | NP
|
CEP
|
AF
|
|||
|---|---|---|---|---|---|---|
| High | Low | High | Low | High | Low | |
| E (kPa) | 96 | 27 | 784 | 227 | 33 | 10 |
| ν (unitless) | 0.42 | 0 | 0.34 | 0 | 0 | 0.11 |
| β (unitless) | 3.9 | 0 | 0 | 0.7 | 1.3 | 2.0 |
| c4 (kPa) | N/A | N/A | N/A | N/A | 795 | 44 |
| c5 (unitless) | N/A | N/A | N/A | N/A | 27 | 200 |
| k0 ×10−16 (m4/N s) | 7 | 3 | 4 | 6 | 42 | 48 |
| M (unitless) | 1.4 | 3.1 | 8.0 | 1.7 | 0.26 | 0.23 |
| FCD (mM) | 379 | 141 | 255 | 312 | 75 | 41 |
| Initial porosity | 0.81 | 0.77 | 0.67 | 0.7 | 0.74 | 0.77 |