A Constitutive Model for the Annulus of Human Intervertebral Disc: Implications for Developing a Degeneration Model and Its Influence on Lumbar Spine Functioning

<table>Finite element model (24 poroelastic three-dimensional elements of ABAQUS, C3D8P) for the free-swelling test (a), applied boundary conditions (b), and external salt concentration history (c).</table>

Journal of Applied Mathematics

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Figure 1

Figure 1: A Constitutive Model for the Annulus of Human Intervertebral Disc: Implications for Developing a Degeneration Model and Its Influence on Lumbar Spine Functioning 

Figure 1 | A Constitutive Model for the Annulus of Human Intervertebral Disc: Implications for Developing a Degeneration Model and Its Influence on Lumbar Spine Functioning 