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A hyperelastic biphasic fiber reinforced model for articular cartilage considering the distribution and orientation of collagen fibers |
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| Authors: | Daniel Albrecht Tim Ricken David M. Pierce Gerhard A. Holzapfel |
| Affiliation: | 1. TU Dortmund, Institute of Mechanics Statics Dynamics, August-Schmidt-Str. 6, 44227 Dortmund, Germany;2. Graz University of Technology, Institute of Biomechanics, Kronesgasse 5-I, 8010 Graz, Austria;3. Graz University of Technology, Institute of Biomechanics, Kronesgasse 5-I, 8010 Graz, Austria Royal Institute of Technology, Department of Solid Mechanics, Osquars Backe 1, 100 44 Stockholm, Sweden |
| Abstract: | Articular cartilage is a multiphase material consisting of fluids and electrolytes, which is described with the Theory of Porous Media. The mechanical characteristics of articular cartilage are porosity, incompressible material behavior combined with transversely isotropic behavior for solid and fluid phases. There are two central points to model articular cartilage: the poro-viscosity of the porous matrix and the visco elasticity, and orientation of the collagen fibers. A numerical example is presented. (© 2013 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) |
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