Finite elasticity of nanocomposite hydrogels

A. D. Drozdov

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Constitutive equations are derived for the elastic response of nanocomposite hydrogels subjected to swelling under an arbitrary deformation with finite strains. Under rapid deformation of as-prepared specimens, the stress-strain relations involve four adjustable parameters that are found by fitting observations on poly(N-isopropylacrylamide), poly(N,N- dimethylacrylamide), and polyacrylamide hydrogels reinforced with Laponite nanoclay and graphene oxide. Good agreement is demonstrated between the observations and the results of numerical simulation at elongations up to 3000%. A pronounced difference is revealed between the effect of filler content on material parameters of chemical and physical nanocomposite gels.

Original languageEnglish
Pages (from-to)673-692
Number of pages20
JournalComposite Interfaces
Volume20
Issue number9
DOIs
StatePublished - 1 Dec 2013
Externally publishedYes

Keywords

  • constitutive modeling
  • finite elasticity
  • graphene oxide
  • nanoclay
  • nanocomposite hydrogel

ASJC Scopus subject areas

  • Ceramics and Composites
  • General Physics and Astronomy
  • Surfaces, Coatings and Films

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