TY - GEN
T1 - Validation of an open source finite element biphasic poroelastic model. Application to the intervertebral disc biomechanics
AU - Castro, A. P.G.
AU - Wilson, W.
AU - Huyghe, J. M.
AU - Ito, K.
AU - Alves, J. L.
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84887324854&partnerID=8YFLogxK
U2 - 10.1061/9780784412992.251
DO - 10.1061/9780784412992.251
M3 - Conference contribution
AN - SCOPUS:84887324854
SN - 9780784412992
T3 - Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics
SP - 2131
EP - 2139
BT - Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics
T2 - 5th Biot Conference on Poromechanics, BIOT 2013
Y2 - 10 July 2013 through 12 July 2013
ER -