Table 1.
Material properties used in the FEM.
| Cortical Bone | Trabecular Bone | Ligaments | Pubic Symphysis | SIJ Articular Cartilage | |
|---|---|---|---|---|---|
| Density (kg.m-3) | 2 | 0.2 | 2 | 2 | 1.05 |
| Young Modulus (MPa) | 2625 | 48.75 | 40 | 397 | 150 |
| Poisson Ratio | 0.3 | 0.25 | 0.3 | 0.3 | 0.2 |
| Yield Stress (MPa) | 105 | 1.95 | - | - | - |
| Hardening modulus (MPa) | 875 | 16.3 | - | - | - |
| Hardening exponent | 1 | 1 | - | - | - |
| Failure plastic strain | 0.04 | 0.04 | - | - | - |
| Tangent Young Modulus (MPa) | - | - | 10 | 155 | - |
| Tangent Poisson ratio | - | - | 0.37 | 0.37 | - |
| Viscoelastic constant | - | - | 28 | 28 | - |
| Navier Constant | - | - | 1.105 | 1.105 | - |