Transient modeling on the coupled chemo-mechanical behaviors of hydrogels in an aqueous environment

L. H. Ma; Q. S. Yang

doi:10.1117/12.924032

12 April 2012 Transient modeling on the coupled chemo-mechanical behaviors of hydrogels in an aqueous environment

L. H. Ma, Q. S. Yang

Proceedings Volume 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering; 840915 (2012) https://doi.org/10.1117/12.924032
Event: Third International Conference on Smart Materials and Nanotechnology in Engineering, 2011, Shenzhen, China

Abstract

Most hydrogels exhibit coupled chemo-mechanical behaviors when in an aqueous environment with changing salt concentrations. This work presents a theoretical framework and a numerical procedure to describe the coupled mechanical deformation and solvent diffusion of such ion-sensitive hydrogels. A new variational formulation for the coupled governing equations is formulated by implementing the coupled formulations in a finite element procedure in Eulerian frame and further the time-dependent concurrent process of mechanical deformation and solvent diffusion is numerically investigated. The proposed numerical method is demonstrated by analyzing several chemo-mechanical coupling phenomena of initially-swollen hydrogels, such as transient free-swelling and indentation with a spherical punch. The results show that the present model is capable of simulating transient free-swelling and solvent migration in such smart materials subjected to externally-applied mechanical forces.

Citation Download Citation

L. H. Ma and Q. S. Yang "Transient modeling on the coupled chemo-mechanical behaviors of hydrogels in an aqueous environment", Proc. SPIE 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering, 840915 (12 April 2012); https://doi.org/10.1117/12.924032

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available