A finite strain chemo-poro-mechanical framework for the chemically stimulated permeation of fluid in polymer gels. (December 2022)

• Record Type: Journal Article
• Authors: Shi, Yuhao; Wallmersperger, Thomas
• Is Part Of: Journal of intelligent material systems and structures. Volume 33:Number 20(2022)
• Page Start: 2564
• Page End: 2577
• Publication Date: 2022-12
• Subjects: Polyelectrolyte gel -- swelling behavior -- swelling kinetics -- nonlinear least squares optimization -- ionic gel -- poromechanical model -- finite strain; Smart materials -- Periodicals; Intelligent control systems -- Periodicals; Artificial intelligence -- Periodicals; Matériaux intelligents -- Périodiques; Commande intelligente -- Périodiques; Intelligence artificielle -- Périodiques; 620.11
• DOI: 10.1177/1045389X221093347
• Languages: English
• ISSNs: 1045-389X

Abstract

Polyelectrolyte polymer gels can significantly increase or decrease their volume by an external stimulus. The reason for this ability is the multiphasic structure of the gel. In the present work, a chemo-electro-poromechanical model is presented, which is supposed to map the swelling behavior of chemically stimulated polymer gels. The presented model was implemented in COMSOL Multiphysics ®, and the swelling behavior of an acrylamide gel was simulated afterward. The mechanical parameters were obtained from experimental data using a least square optimization while the other material parameters were calibrated to the experimentally determined swelling behavior.