A Theoretical Formulation for Boundary Friction in Articular Cartilage

[+] Author and Article Information
G. A. Ateshian

Department of Mechanical Engineering, Columbia University, New York, NY

J Biomech Eng 119(1), 81-86 (Feb 01, 1997) (6 pages) doi:10.1115/1.2796069 History: Received July 27, 1995; Revised April 18, 1996; Online October 30, 2007


A theoretical boundary friction model is proposed for predicting the frictional behavior of articular cartilage, including its time-dependent, velocity-dependent, and load-dependent responses. This theoretical model uses the framework of the biphasic theory for articular cartilage, and provides a mathematical formulation for the principle that interstitial fluid pressurization contributes significantly to reduction of the effective friction coefficient. Several examples of the application of this theory are provided, which demonstrate that a variety of experimentally observed cartilage frictional behaviors can now be theoretically predicted.

Copyright © 1997 by The American Society of Mechanical Engineers
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