Adhesion in hydrogel contacts
Document Type
Article
Date of Original Version
5-1-2016
Abstract
A generalized thermomechanical model for adhesion was developed to elucidate the mechanisms of dissipation within the viscoelastic bulk of a hyperelastic hydrogel. Results show that in addition to the expected energy release rate of interface formation, as well as the viscous flow dissipation, the bulk composition exhibits dissipation due to phase inhomogeneity morphological changes. The mixing thermodynamics of the matrix and solvent determines the dynamics of the phase inhomogeneities, which can enhance or disrupt adhesion. The model also accounts for the time-dependent behaviour. A parameter is proposed to discern the dominant dissipation mechanism in hydrogel contact detachment.
Publication Title, e.g., Journal
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
Volume
472
Issue
2189
Citation/Publisher Attribution
Torres, J. R., G. D. Jay, K. K. Kim, and G. D. Bothun. "Adhesion in hydrogel contacts." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472, 2189 (2016). doi: 10.1098/rspa.2015.0892.