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Validation of an Open Source Finite Element Biphasic Poroelastic Model. Application to the Intervertebral Disc Biomechanics
A great amount of experimental and numerical studies have studied the Intervertebral Disc (IVD) and proven that it presents hyper-visco-poro-elastic behavior. However, the accessibility and flexibility of the software used in numerical studies is often hampered by the proprietary nature of the FEM-packages used. A novel, biphasic, poroelastic formulation was implemented on a home-developed, open source, FE solver in order to approach the biomechanical behavior of the IVD in the Human Spine. Firstly, a simple consolidation test with three different u/p-c elements was compared with Terzaghi's model. Secondly, three IVD FE models were built with the same three types of elements and tested through Heuer's experimental protocol. Terzaghi's test was important to validate the innovative biphasic poroelastic formulation. Such verdict was confirmed by the application of this formulation to the IVD FE model. Therefore, the in-development open source FE solver shall become an appropriate to the description of IVD.
Validation of an Open Source Finite Element Biphasic Poroelastic Model. Application to the Intervertebral Disc Biomechanics
A great amount of experimental and numerical studies have studied the Intervertebral Disc (IVD) and proven that it presents hyper-visco-poro-elastic behavior. However, the accessibility and flexibility of the software used in numerical studies is often hampered by the proprietary nature of the FEM-packages used. A novel, biphasic, poroelastic formulation was implemented on a home-developed, open source, FE solver in order to approach the biomechanical behavior of the IVD in the Human Spine. Firstly, a simple consolidation test with three different u/p-c elements was compared with Terzaghi's model. Secondly, three IVD FE models were built with the same three types of elements and tested through Heuer's experimental protocol. Terzaghi's test was important to validate the innovative biphasic poroelastic formulation. Such verdict was confirmed by the application of this formulation to the IVD FE model. Therefore, the in-development open source FE solver shall become an appropriate to the description of IVD.
Validation of an Open Source Finite Element Biphasic Poroelastic Model. Application to the Intervertebral Disc Biomechanics
Castro, A. P. G. (author) / Wilson, W. (author) / Huyghe, J. M. (author) / Ito, K. (author) / Alves, J. L. (author)
Fifth Biot Conference on Poromechanics ; 2013 ; Vienna, Austria
Poromechanics V ; 2131-2139
2013-06-18
Conference paper
Electronic Resource
English
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