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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/62428

Title: Apparent behaviour of charged and neutral materials with ellipsoidal fibre distributions and cross-validation of finite element implementations
Author: KELLY, DANIEL JOHN
NAGEL, THOMAS
Sponsor: 
Name Grant Number
G30345
08/YI5/B1336

Author's Homepage: http://people.tcd.ie/kellyd9
Keywords: Bioengineering
ellipsoidal fibre distribution
Donnan equilibrium
anisotropy
Issue Date: 2012
Publisher: Elsevier
Citation: Thomas Nagel, Daniel J. Kell, Apparent behaviour of charged and neutral materials with ellipsoidal fibre distributions and cross-validation of finite element implementations, Journal of the Mechanical Behavior of Biomedical Materials, 9, 2012, 122 129
Series/Report no.: Journal of the Mechanical Behavior of Biomedical Materials;
9;
Abstract: Continuous fibre distribution models can be applied to a variety of biological tissues with both charged and neutral extracellular matrices. In particular, ellipsoidal models have been used to describe the complex material behaviour of tissues such as articular cartilage and their engineered tissue equivalents. The choice of material parameters is more difficult than in classical anisotropic models and the impact that changes to these parameters can have on the predictions of such models are poorly understood. The objective of this study is to demonstrate the apparent behaviour of this class of materials over a range of material parameters. We further introduce a scaling approach to overcome certain counter-intuitive aspects related to the choice of anisotropy parameters and outline the integration method used in our implementations. User material codes for the commercial FE software packages Abaqus and MSC Marc are provided for use by other investigators. Cross-validation of our code against similar implementations in FEBio is also presented.
Description: PUBLISHED
URI: http://hdl.handle.net/2262/62428
Related links: http://dx.doi.org/10.1016/j.jmbbm.2012.01.006
Appears in Collections:Mechanical & Manufacturing Eng (Scholarly Publications)

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