Raske, N, Soltanahmadi, S, de Boer, G orcid.org/0000-0002-5647-1771 et al. (2 more authors) (2022) Finite element investigations of the fluid-solid behaviour in a bio-inspired poroelastic bearing. Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology, 236 (8). pp. 1531-1544. ISSN 1350-6501
Abstract
Poroelastic materials are commonly found in biological systems, such as articulating cartilage, and the ability to predict their biphasic behaviour is a key step in the understanding of joint health and the development of biomimetic devices. Here, a fully coupled three dimensional finite element study is presented to demonstrate the permeability dependent load carrying capacity of fluid pressure in a time-varying poroelastic system. A bio-inspired material model is demonstrated with relaxation simulations which first show results for a cartilage-like sample and then for a variation of permeability from 10⁻¹⁹m² to 10⁻¹³m².The relaxation rate is non-linear but the total relaxation time scales linearly with permeability. That material model is then demonstrated in the context of a mechanical bearing operating in lubricated contact with an impermeable wall. The results show that for a given set of operating conditions the permeability modifies how the fluid and solid phases accommodate applied loads. High fluid load support varies through the thickness and width of the bearing. It is particularly high around regions where the interstitial flow is restricted by external factors such as contact interfaces. The model offers a novel method to predict local pressures and stresses within a poroelastic material.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © IMechE 2022. This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage). |
Keywords: | Poroelastic lubrication; computational tribology |
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 Functional Surfaces (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Engineering Thermofluids, Surfaces & Interfaces (iETSI) (Leeds) The University of Leeds > Faculty of Environment (Leeds) > School of Food Science and Nutrition (Leeds) > FSN Colloids and Food Processing (Leeds) |
Funding Information: | Funder Grant number Leverhulme Trust RPG-2017-281 |
Depositing User: | Symplectic Publications |
Date Deposited: | 17 Feb 2022 14:44 |
Last Modified: | 22 Feb 2023 17:19 |
Status: | Published |
Publisher: | SAGE |
Identification Number: | 10.1177/13506501221089512 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:183656 |