Table 2: Mechanical properties of degenerated disc.

MaterialYoung modulus (MPa)Poisson coefficient Element typeNumber of elements

Annulus fibrosus6.00.35Hexahedron8288
Nucleus pulposus*1.30.4Tetrahedron14410
Annulus fiber layers 136.00.3Truss**592
Annulus fiber layers 240.80.3Truss**592
Annulus fiber layers 345.50.3Truss**592
Annulus fiber layers 450.30.3Truss**592
Annulus fiber layers 555.00.3Truss**296

*Elastic material (compressible).
**Only tension.