Physical mechanisms underlying the strain-rate-dependent mechanical behavior of kangaroo shoulder cartilage
Article
Article Title | Physical mechanisms underlying the strain-rate-dependent mechanical behavior of kangaroo shoulder cartilage |
---|---|
ERA Journal ID | 949 |
Article Category | Article |
Authors | Thibbotuwawa, Namal (Author), Oloyede, Adekunle (Author), Li, Tong (Author), Singh, Sanjileena (Author), Senadeera, Wijitha (Author) and Gu, YuanTong (Author) |
Journal Title | Applied Physics Letters |
Journal Citation | 107 (10) |
Article Number | 103701 |
Number of Pages | 5 |
Year | 2015 |
Publisher | AIP Publishing |
Place of Publication | United States |
ISSN | 0003-6951 |
1077-3118 | |
Digital Object Identifier (DOI) | https://doi.org/10.1063/1.4929498 |
Web Address (URL) | http://aip.scitation.org/doi/10.1063/1.4929498 |
Abstract | Due to anatomical and biomechanical similarities to human shoulder, kangaroo was chosen as a model to study shoulder cartilage. Comprehensive enzymatic degradation and indentation tests were applied on kangaroo shoulder cartilage to study mechanisms underlying its strain-rate-dependent mechanical behavior. We report that superficial collagen plays a more significant role than proteoglycans in facilitating strain-rate-dependent behavior of the kangaroo shoulder cartilage. By comparing the mechanical properties of degraded and normal cartilages, it was noted that proteoglycan and collagen degradation significantly compromised strain-rate-dependent mechanical behavior of the cartilage. Superficial collagen contributed equally to the tissue behavior at all strain rates.This is different to the studies reported on knee cartilage and confirms the importance of superficial collagen on shoulder cartilage mechanical behavior. A porohyperelastic numerical model also indicated that collagen disruption would lead to faster damage of the shoulder cartilage than when proteoglycans are depleted. |
Keywords | strain-rate, cartilage, mechanical behaviour |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401706. Numerical modelling and mechanical characterisation |
Public Notes | This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Appl. Phys. Lett. 107, 103701 (2015) and may be found at https://doi.org/10.1063/1.4929498. |
Byline Affiliations | Queensland University of Technology |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3wxq/physical-mechanisms-underlying-the-strain-rate-dependent-mechanical-behavior-of-kangaroo-shoulder-cartilage
Download files
Published Version
1568
total views191
total downloads2
views this month1
downloads this month