The Micro-Mechanical Behavior of Articular Cartilage under Continuous Sliding Load

Abstract:

As a viscoelastic and nonlinear connective tissue, articular cartilage bears continuous sliding load in the daily activities. The optimized digital image correlation (DIC) technique was applied to investigate the effect of sliding rate and compressive strain on the normal displacement of different layers in pig articular cartilage under sliding load. The normal displacements of different layers in cartilage increase gradually with sliding going on with given sliding rate and compressive strain. Experiments showed that the normal displacement of superficial layer is the largest, the normal displacement of deep layer is the smallest and the normal displacement of middle layer is between superficial layer and deep layer, and found that the normal displacements of different layers in cartilage increase with increasing compressive strains, but decrease with increasing sliding rates. The normal displacement of different layers are different under continuous sliding load.

• Periodical: Applied Mechanics and Materials (Volumes 395-396)
• Pages: 654-657
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.395-396.654
• Online since: September 2013
• Authors: Peng Peng Xiao, Li Lan Gao, Zhi Dong Liu, Chun Qiu Zhang
• Keywords: Articular Cartilage, Continuous Sliding Load, Different Layers, Normal Displacement

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