Numerical implementation of an osmo-poro-visco-hyperelastic finite element solver: application to the intervertebral disc
A. P. G. Castro, J.L. Alves
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.
Topics & Concepts
Hyperelastic materialPoromechanicsSolverFinite element methodIntervertebral discComputer scienceMaterials scienceBiomedical engineeringStructural engineeringEngineeringAnatomyMedicineComposite materialPorous mediumPorosityProgramming languageElasticity and Material ModelingAdvanced Numerical Analysis TechniquesPelvic and Acetabular Injuries