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TECHNICAL PAPERS

Biphasic Poroviscoelastic Simulation of the Unconfined Compression of Articular Cartilage: I—Simultaneous Prediction of Reaction Force and Lateral Displacement

[+] Author and Article Information
Mark R. DiSilvestro, Qiliang Zhu, Jun-Kyo Francis Suh

Department of Biomedical Engineering, Tulane University, New Orleans, LA 70118

Marcy Wong

M.E. Müller Institute for Biomechanics, University of Bern, Bern, Switzerland

Jukka S. Jurvelin

Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland

J Biomech Eng 123(2), 191-197 (Oct 01, 2000) (7 pages) doi:10.1115/1.1351890 History: Received December 01, 1999; Revised October 01, 2000
Copyright © 2001 by ASME
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References

Figures

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(a) Articular cartilage specimen placed between two smooth, impermeable steel loading platens coated with synovial fluid providing a nearly perfect lubrication. One platen was rigidly connected to a waterproof load cell, while the other was connected to a DC servomotor controlled, high precision lead screw driven actuator. (b) One quadrant of the plug was meshed with 50 quadrilateral elements due to the axisymmetry of the unconfined compression problem.
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A typical data set including the experimentally determined reaction force (a) and lateral displacement (b) along with the corresponding linear BPE, LVE, and linear BPVE model curve fits
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TIBPE model best fits for either reaction force or lateral displacement along with model predictions and experimental data. Reaction force summary (a) and lateral displacement summary (b).
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Volumetric strain distribution at several time steps during relaxation phase as calculated from the linear BPVE and linear BPE models
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Relative fluid velocity distributions at several time steps during relaxation phase as calculated from the linear BPVE and linear BPE models
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Pressure distribution at several time steps during relaxation phase as calculated from the linear BPVE and linear BPE models

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