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Table 1 Material properties of the FE models

From: Differential response to vibration of three forms of scoliosis during axial cyclic loading: a finite element study

Parts Young’s modulus (MPa) Poisson ratio Reference
Vertebra
 Cortical bone 12000 0.3 [15,16,17]
 Cancellous bone 100 0.2 [15]
 Posterior body 3500 0.25 [18]
 Endplate 12000 0.3 [16, 19]
Discs
 Annulus ground substance 4.2 0.45 [15,16,17, 20, 21]
 Nucleus pulpous 1 0.499 [17, 22,23,24]
   E1/E2 v
Annulus Fiber Laminate [17, 25]
 Inside laminate Inner ply (±30°) 360/4.2 0.3
Middle ply (±30°) 385/4.2 0.3
outer ply (±30°) 420/4.2 0.3
 Outer laminate inner ply (±30°) 440/4.2 0.3
middle ply (±30°) 495/4.2 0.3
outer ply (±30°) 5500/4.2 0.3
 Ligaments   Nonlinear force-displacement curves [23, 26]