Material constants for a finite element model of the intervertebral disk with a fiber composite annulus.

@article{Spilker1986MaterialCF,
  title={Material constants for a finite element model of the intervertebral disk with a fiber composite annulus.},
  author={Robert L. Spilker and D M Jakobs and Albert B Schultz},
  journal={Journal of biomechanical engineering},
  year={1986},
  volume={108 1},
  pages={1-11}
}
A simple axisymmetric finite element model of a human spine segment containing two adjacent vertebrae and the intervening intervertebral disk was constructed. The model incorporated four substructures: one to represent each of the vertebral bodies, the annulus fibrosus, and the nucleus pulposus. A semi-analytic technique was used to maintain the computational economies of a two-dimensional analysis when nonaxisymmetric loads were imposed on the model. The annulus material was represented as a… CONTINUE READING