Joldes, GR, Noble, C, Polzer, S et al. (3 more authors) (2018) A simple method of incorporating the effect of the uniform stress hypothesis in arterial wall stress computations. Acta of Bioengineering and Biomechanics, 20 (3). pp. 59-67. ISSN 1509-409X
Abstract
Purpose: Residual stress has a great influence on the mechanical behaviour of arterial wall. Numerous research groups used the Uniform Stress Hypothesis to allow the inclusion of the effects of residual stress when computing stress distributions in the arterial wall. Nevertheless, the available methods used for this purpose are very computationally expensive, due to their iterative nature. In this paper we present a new method for including the effects of residual stress on the computed stress distribution in the arterial wall. Methods: The new method, by using the Uniform Stress Hypothesis, enables computing the effect of residual stress by averaging stresses across the thickness of the arterial wall. Results: Being a post-processing method for the computed stress distributions, the proposed method is computationally inexpensive, and thus, better suited for clinical applications than the previously used ones. Conclusions: The resulting stress distributions and values obtained using the proposed method based on the Uniform Stress Hypothesis are very close to the ones returned by an existing iterative method.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Keywords: | Uniform Stress Hypothesis, residual stress, finite element method, arterial wall stress |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Medical and Biological Engineering (iMBE) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 16 Apr 2019 15:14 |
Last Modified: | 16 Apr 2019 15:14 |
Status: | Published |
Publisher: | Wroclaw University of Technology |
Identification Number: | 10.5277/ABB-01143-2018-03 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:144917 |