Model | Material model | Material property | Literature | ||
---|---|---|---|---|---|
Bone | Linear-elastic | ρ = 1.067 * HU + 131 (g/cm3) | 23 | ||
E = 0.09882 ρ1.56 (MPa) | |||||
Intervertebral disc | Mooney-Rivlin formulation (MPa) | ||||
c10 | c01 | D 1 | |||
NUC | Hyper-elastic | 0.12 | 0.09 | 1 | 25 |
ANN | 0.56 | 0.14 | 1 | 26 | |
Ligaments | Ogden-3 formulation (MPa) | 27, 28 | |||
ALL | Hyper-elastic | (See Table 3) | |||
SSL | |||||
ISL | |||||
PLL | Hyper-elastic | (See Table 3) | |||
LF | |||||
IL | Hyper-elastic | (See Table 3) | |||
Facet Joint | Linear-elastic | Spring elements: E=250 (MPa) | 29 | ||
Modulus of Elasticity | Poisson’s Ratio (μ) | ||||
Graft bone | Linear-elastic | 100 (MPa) | 0.2 | 10 | |
AIB | Linear-elastic | 1500 (MPa) | 0.3 | 24 | |
PEEK | Linear-elastic | 3500 (MPa) | 0.3 | 20 | |
Titanium | Linear-elastic | 110 (GPa) | 0.3 | 11 |