Comparative finite element modelling of aneurysm formation and physiologic inflation in the descending aorta

de Gelidi, Serena and Bucchi, Andrea (2019) Comparative finite element modelling of aneurysm formation and physiologic inflation in the descending aorta. Computer Methods in Biomechanics and Biomedical Engineering, 22 (15). pp. 1197-1208. ISSN 1025-5842 (doi:10.1080/10255842.2019.1650036)

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Abstract

Despite the general interest in aneurysm rupture prediction, the aneurysm formation has received limited attention. The goal of this study is to assess whether an aneurysm may be instigated in a healthy model of an aorta inflated by a supra-physiological pressure. The effect of two main aspects on numerical predictions has been explored: i) the geometric design and ii) the constitutive law adopted to represent the material properties. Firstly, higher values of wall stress and displacement magnitude were generated in the physiologic model compared to the cylindrical one when assigning the same material properties. Secondly, greater deformations are observed in the anisotropic model compared to the isotropic one.

Item Type: Article
Keywords (uncontrolled): Fung, aneurysm, anisotropic, aorta, finite element
Research Areas: A. > School of Science and Technology > Natural Sciences > Biophysics and Bioengineering group
Item ID: 27506
Notes on copyright: This is an Accepted Manuscript of an article published by Taylor & Francis in Computer Methods in Biomechanics and Biomedical Engineering on 21/08/19, available online: http://www.tandfonline.com/10.1080/10255842.2019.1650036.
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Depositing User: Jisc Publications Router
Date Deposited: 05 Sep 2019 12:59
Last Modified: 02 Nov 2019 01:10
URI: https://eprints.mdx.ac.uk/id/eprint/27506

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