NUMERICAL SIMULATION OF CARTILAGE DEFORMATION WITH ELECTROKINETIC COUPLING  ITC Software All rights reserved.

One-dimension model creep response of human SMS =0.45  =1.1  10 3 kg/m 3  f =1  10 3 kg/m 3 n=0.7 k=0.5  m 4 /Ns K s =1.91  10 7 N/m 2 K f =1  10 8 N/m 2 L=2.4  m p 0 =10 6 N/m 2 FEM-1: E=8.6  10 5 N/m 2 FEM-2: E=4.6  10 5 N/m 2

Dynamic response of human spinal motion segment (SMS)

Von Mises stress distribution in the solid matrix for the second time step

Von Mises stress distribution in the solid matrix for the fourth time step

Axial loading 400 N NucleusAnnulus Normal discusk=1.0e -13 m 4 /Nsk=1.0e -15 m 4 /Ns Degenerative discusk=1.0e -12 m 4 /Nsk=1.0e -14 m 4 /Ns Displacement of the top of the model

Axial loading 1000 N NucleusAnnulus Normal discusk=1.0e -13 m 4 /Nsk=1.0e -15 m 4 /Ns Degenerative discusk=1.0e -12 m 4 /Nsk=1.0e -14 m 4 /Ns Fluid pressure at the center of nucleus

Stress distribution in the solid matrix of the lumbar motion segment under sagittal moment 60 Nm

Variation of sagittal plane rotations with sagittal plane moments with and without electrokinetical coupling (EKC )

ANIMATION

We hope you enjoyed our presentation ! ITC Software Tel We hope you enjoyed our presentation ! ITC Software Tel