A new formulation and computation of the triphasic model for mechano-electrochemical mixtures |
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Authors: | Y C Hon M W Lu W M Xue X Zhou |
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Affiliation: | (1) Department of Mathematics, City University of Hong Kong, Hong Kong, HK;(2) Department of Engineering Mechanics, Tsinghua University, Beijing 100084, PRC,;(3) Department of Mathematics, Hong Kong Baptist University, Hong Kong, HK;(4) Beijing Special Engineering Design and Research Institute, Beijing 100028, PRC, |
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Abstract: | From the generalized first law of thermodynamics for an irreversible thermodynamical system, a new set of governing equations
for the mixture theory is derived based on the triphasic model for mechano-electrochemical mixtures. It is shown that, in
the case of electroneutral solution, a new biphasic mixture theory including the electrochemical effects can be derived from
the new governing equations. The chemical-expansion stress representing both the influences of deformation on the fixed charge
density and the electric potential of fixed charge field is given. For comparison and verification purposes, the numerical
solution for a confined compression problem of a charged hydrated soft tissue is computed using the multiquadric method.
Received: 1 November 1998 |
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