Strain Energy Descriptions of Biological Swelling II: Multiple Fluid Compartment Models

[+] Author and Article Information
D. K. Bogen

Department of Bioengineering, University of Pennsylvania, Philadelphia, Pa. 19104-6392

J Biomech Eng 109(3), 257-262 (Aug 01, 1987) (6 pages) doi:10.1115/1.3138678 History: Received December 16, 1985; Revised April 14, 1987; Online June 12, 2009


A series of multicompartmental, biphasic elastic tissue models is developed. In its most general form, the models consist of multiple tubular networks, each with an internal spring network. In addition, another spring network occupies the extratubular compartment. Strain energy functions are derived for the models, as well as expressions for the fluid pressures in each compartment arising from volume expansion or swelling. Calculations also show that the distribution of fluid among compartments is a significant determinant of tissue elasticity.

Copyright © 1987 by ASME
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