Proceedings of the 3rd Annual International Conference on Mechanics and Mechanical Engineering (MME 2016)

The Nonlinear Viscoelasticity of the Human Knee Articular Cartilage

Authors
Chao-Jie Wan, Gai-Min Li, Tong-Tong Guo
Corresponding Author
Chao-Jie Wan
Available Online December 2016.
DOI
https://doi.org/10.2991/mme-16.2017.32How to use a DOI?
Keywords
Human knee joint, Cartilage, Constitutive, Viscoelasticity, Stress relaxation.
Abstract
The human knee cartilage play an important role in the knee joint. Osteoarthritis (OA) are related to knee joint cartilage. So the accurate description of the cartilage constitutive is the most important work for the understanding the cartilage test phenomenon. The role of viscoelasticity of collagen fibers in bovine articular cartilage was examined in compression and tension using stress relaxation measurements in the axial direction (normal to the articular surface. The human knee joint cartilage also shows the same viscoelastic property in compression and tension test using stress relaxation measurement in the direction (normal to the articular surface). The tension and compression test show the non-linear viscoelastic property. A viscoelastic fibril-reinforced model including fluid flow was used for analysis of the experimental data. The collagen fibrillar matrix was assumed to be viscoelastic with a strain-dependent tensile modulus, and the nonfibrillar matrix was modeled as linearly elastic. For axial tension, collagen viscoelasticity was found to account for most of the stress relaxation, while the effects of fluid pressurization on the tensile stress were negligible. So we use the viscoelastic constitutive to define the cartilage for simulating the tension and compression test. This study illustrates the essential and mainly role of collagen viscoelasticity.
Open Access
This is an open access article distributed under the CC BY-NC license.

Download article (PDF)

Proceedings
3rd Annual International Conference on Mechanics and Mechanical Engineering (MME 2016)
Part of series
Advances in Engineering Research
Publication Date
December 2016
ISBN
978-94-6252-303-6
ISSN
2352-5401
DOI
https://doi.org/10.2991/mme-16.2017.32How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Chao-Jie Wan
AU  - Gai-Min Li
AU  - Tong-Tong Guo
PY  - 2016/12
DA  - 2016/12
TI  - The Nonlinear Viscoelasticity of the Human Knee Articular Cartilage
BT  - 3rd Annual International Conference on Mechanics and Mechanical Engineering (MME 2016)
PB  - Atlantis Press
SN  - 2352-5401
UR  - https://doi.org/10.2991/mme-16.2017.32
DO  - https://doi.org/10.2991/mme-16.2017.32
ID  - Wan2016/12
ER  -