Investigation of the mechanical behavior of kangaroo humeral head cartilage tissue by a porohyperelastic model based on the strain-rate-dependent permeability
Article
Article Title | Investigation of the mechanical behavior of kangaroo humeral head cartilage tissue by a porohyperelastic model based on the strain-rate-dependent permeability |
---|---|
ERA Journal ID | 44865 |
Article Category | Article |
Authors | Thibbotuwawa, Namal (Author), Oloyede, Adekunle (Author), Senadeera, Wijitha (Author), Li, Tong (Author) and Gu, YuanTong (Author) |
Journal Title | Journal of The Mechanical Behavior of Biomedical Materials |
Journal Citation | 51, pp. 248-259 |
Number of Pages | 12 |
Year | 2015 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 1751-6161 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jmbbm.2015.07.018 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S1751616115002593 |
Abstract | Solid–interstitial fluid permeability,is significant to the strain-rate-dependent mechanical behavior of humeralhead(shoulder)cartilage.Due to anatomical and biomechanical similarities to that of thehumanshoulder,kangaroos present a suitable animal model. Therefore,indentation experiments were conducted on kangaroo shoulder cartilage issues from low(10-4/s) tomoderatelyhigh(10-2/s)strain-rates. A porohyperelastic model was developed based on the experimental characterization; and a permeability function that takes into account the effect of strain-rate on permeability (strain-rate-dependent permeability)was introduced into the model to investigate the effect of rate-dependent fluid flow ontissueresponse.The prediction of the model with the strain-rate- dependent permeability was compared with those of the models using constant permeability and strain-dependent permeability. Compared to the model with constant permeability,the models with strain-dependent and strain-rate- dependent permeability were able to better capture the experimental variation at all strain-rates (po0.05).Significant differences were not identified betweenmodels with strain-dependent and strain-rate-dependent permeability at strain-rateof5-10-3/s (p=0.179). However,at strain-rate of 10-2/s, the model with strain-rate-dependentpermeability was significantly better at capturing the experimental results(p<0.005). The findings thus revealed the significance of rate-dependent fluid flow on tissue behavior at large strain-rates,which provides insights into the mechanical deformation mechanisms of cartilage tissues. |
Keywords | mechanical behavior, kangaroo cartilage, model, permeability |
ANZSRC Field of Research 2020 | 401706. Numerical modelling and mechanical characterisation |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Queensland University of Technology |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3wx6/investigation-of-the-mechanical-behavior-of-kangaroo-humeral-head-cartilage-tissue-by-a-porohyperelastic-model-based-on-the-strain-rate-dependent-permeability
1542
total views8
total downloads1
views this month0
downloads this month