Constitutive modelling of inelastic behaviour of cortical bone

Medical Engineering & Physics
Arturo N NataliPiero G Pavan

Abstract

A visco-elasto-plastic constitutive model is formulated for investigating the mechanics of cortical bone tissue, accounting for an anisotropic configuration and post-elastic and time-dependent phenomena. The constitutive model is developed with reference to experimental data obtained from literature on the behaviour of cortical bone taken from multiple samples. Regarding the constitutive model, a specific procedure based on a coupled deterministic and stochastic method is applied in order to determine the values of the constitutive parameters with regard to human samples. The procedure entails processing of data deduced from mechanical tests to achieve relationships between permanent and total strain, elastic modulus and strain rate, and creep elastic modulus and time. Numerical results obtained by using a finite element model are compared with tensile experimental data on cortical bone including the post-elastic range and creep phenomena. The model shows an excellent capability to describe the tensile behaviour of the cortical bone for the specific mechanical condition analysed.

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Citations

Mar 20, 2010·Biomechanics and Modeling in Mechanobiology·Mathieu CharleboisPhilippe K Zysset
Apr 25, 2012·Biomechanics and Modeling in Mechanobiology·J J Schwiedrzik, P K Zysset
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Apr 14, 2012·Journal of the Mechanical Behavior of Biomedical Materials·Nicola Kelly, J Patrick McGarry
Jun 16, 2010·Computer Methods and Programs in Biomedicine·Arturo N NataliPiero G Pavan
Mar 23, 2010·Medical Engineering & Physics·A N NataliE L Carniel
Jan 9, 2009·Dental Materials : Official Publication of the Academy of Dental Materials·Arturo N NataliPiero G Pavan
Jul 29, 2009·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Arturo N NataliPiero G Pavan
Feb 7, 2013·International Journal for Numerical Methods in Biomedical Engineering·Roberto CarrettaRalph Müller
May 20, 2015·Medical & Biological Engineering & Computing·Piero G PavanArturo N Natali
Nov 16, 2013·Journal of Biomechanical Engineering·Leila MalekmotieiAref Samadi-Dooki
May 8, 2020·Biomechanics and Modeling in Mechanobiology·Andreas G ReisingerDieter H Pahr
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Sep 28, 2017·Applied Bionics and Biomechanics·Farah Hamandi, Tarun Goswami
Jun 14, 2021·Acta Biomaterialia·Sindhu NagarajaMarkus Böl

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