Files in this item



application/pdf1050.pdf (2MB)
(no description provided)PDF


Title:A numerical strategy for investigating the kinetic response of stimulus-responsive hydrogels
Author(s):Dolbow, John E.; Fried, Eliot; Ji, Huidi
Abstract:We present a strategy for obtaining numerical solutions to a system of nonlinear, coupled evolution equations describing volume transitions in stimulus-responsive hydrogels (SRHs). The theory underlying our sharp-interface model of phase transitions in SRHs is provided along with the assumptions leading to the specialized formulation that is the starting point for the numerical method. The discrete formulation is then developed with a hybrid extended finite-element/level-set method (XFE/LSM). Domain-integral methodologies are used consistently to extract interfacial quantities such as the mechanical driving traction, the jump in the normal component of the solute flux, and requisite geometric information. Several benchmark studies are provided to demonstrate the accuracy and robustness of the numerical strategy. We then investigate various features of SRH kinetics including the regimes of unstable and stable phase transitions, surface pattern formation, and bulk phase separation.
Issue Date:2004-06
Publisher:Department of Theoretical and Applied Mechanics (UIUC)
Series/Report:TAM Reports 1050
Genre:Technical Report
Publication Status:published or submitted for publication
Peer Reviewed:is peer reviewed
Date Available in IDEALS:2007-03-08
Is Version Of:Published as: John Dolbow, Eliot Fried, and Huidi Ji. A numerical strategy for investigating the kinetic response of stimulus-responsive hydrogels. Computer Methods in Applied Mechanics and Engineering, Vol. 194, No. 42-44, 2005, pp. 4447 - 4480. DOI: 10.1016/j.cma.2004.12.004. Copyright 2005 Elsevier Science.

This item appears in the following Collection(s)

  • Technical Reports - Theoretical and Applied Mechanics (TAM)
    TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.

Item Statistics