Numerical implementation of an osmo-poro-visco-hyperelastic finite element solver: application to the intervertebral disc

A. P. G. Castro and J. L. Alves

Computer Methods in Biomechanics and Biomedical Engineering, 2021, vol. 24, issue 5, 538-550

Abstract: This work deals with the finite element (FE) implementation of a biphasic poroelastic formulation specifically developed to address the intricate behaviour of the Intervertebral Disc (IVD) and other highly hydrated soft tissues. This formulation is implemented in custom FE solver V-Biomech, being the validation performed with a lumbar IVD model, which was compared against the analogous FE model of Williams et al. and the experiments of Tyrrell et al. Good agreement with these benchmarks was achieved, meaning that V-Biomech and its novel poroelastic formulation are a viable alternative for simulation of biphasic soft tissues.

Date: 2021
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DOI: 10.1080/10255842.2020.1839059

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