Table 1 Material properties
Component | Young’s modulus(Mpa) | Poisson ratio |
|---|---|---|
Cortical bone | 12,000 | 0.3 |
Cancellous bone | 100 | 0.2 |
Endplate | 24 | 0.4 |
Articular cartilage | 25 | 0.4 |
Nucleus pulposus | 1 | 0.49 |
Annulus fibrosus | 4.2 | 0.45 |
Anterior longitudinal ligament (ALL) | 7.8 | 0.3 |
Posterior longitudinal ligament (PLL) | 10 | 0.3 |
Ligament flava (LF) | 15 | 0.3 |
Supraspinous ligament (SSL) | 8 | 0.3 |
Interspinous ligament (ISL) | 10 | 0.3 |
Intertransverse ligament (ITL) | 10 | 0.3 |
Capsular ligament (CL) | 7.5 | 0.3 |
Aluminum alloy | 110,000 | 0.28 |