A nonlinear compressible transversely-isotropic viscohyperelastic constitutive model of the periodontal ligament

Zhurov, Alexei I. ORCID: https://orcid.org/0000-0002-5594-0740, Evans, Samuel L. ORCID: https://orcid.org/0000-0003-3664-2569, Holt, Catherine A. ORCID: https://orcid.org/0000-0002-0428-8078 and Middleton, John 2009. A nonlinear compressible transversely-isotropic viscohyperelastic constitutive model of the periodontal ligament. Presented at: ASME International Mechanical Engineering Congress and Exposition 2008, Boston, MA, USA, 31 October-6 November 2008. Published in: Lovern, B. and Evans, R. eds. ASME International Mechanical Engineering Congress and Exposition: Volume 2: Biomedical and Biotechnology Engineering. , vol.2 American Society of Mechanical Engineers, pp. 707-719. 10.1115/IMECE2008-67949

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Abstract

The periodontal ligament may be treated as a transversely-isotropic viscohyperelastic fibre-reinforced compressible material which is subject to large deformations and has an essentially nonlinear behavior. Within these assumptions, a continuum constitutive model of the PDL was proposed recently [48], which involves a number of material parameters that have to be identified from experimental data. An optical motion analysis system was developed [26] to collect data on the deformation of the PDL. In the present paper, an advanced version of the model is suggested, which is based on the assumption of the existence of an additive strain-energy function dependent on a number of principal invariants. The sensitivity analysis of the material parameters is performed and a parameter identification technique is suggested.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Engineering
Publisher:	American Society of Mechanical Engineers
ISBN:	9780791848630
Last Modified:	10 Jul 2024 11:58
URI:	https://orca.cardiff.ac.uk/id/eprint/21610

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