Learn More
Elasticity is viewed here as a starting point in the description of in-elastic behavior. The two-scale geometry provided by structured deformations and a field theory of elastic bodies undergoing disarrangements (non-smooth geometrical changes) and dissipation are used to formulate and illustrate a concept of " submacroscopically stable configuration. " A(More)
We introduce a dielectric elastomer actuator (DEA) composed of liquid-phase Gallium-Indium (GaIn) alloy electrodes embedded between layers of poly(dimethylsiloxane) (PDMS) and examine its mechanics using a specialized elastic shell theory. Residual stresses in the dielectric and sealing layers of PDMS cause the DEA to deform into a saddle-like geometry(More)
The widespread interest on the hereditary behavior of biological and bioinspired materials motivates deeper studies on their macroscopic " minimal " state. The resulting integral equations for the detected relaxation and creep power-laws, of exponent β, are characterized by fractional operators. Here strains in SBV loc are considered to account for(More)
In this work lipid ordering phase changes arising in planar membrane bilayers is investigated both accounting for elasticity alone and for effective viscoelastic response of such assemblies. The mechanical response of such membranes is studied by minimizing the Gibbs free energy which penalizes perturbations of the changes of areal stretch and their(More)
Coherent angular rotation of epithelial cells is thought to contribute to many vital physiological processes including tissue morphogenesis and glandular formation. However, factors regulating this motion, and the implications of this motion if perturbed, remain incompletely understood. In the current study, we address these questions using a cell-center(More)
Explicit expressions for the minimum free energy of a linear viscoelastic material and Noll's definition of state are used here to explore spatial energy decay estimates for viscoelastic bodies, in the full dynamical case and in the quasi-static approximation. In the inertial case, Chirita et al. obtained a certain spatial decay inequality for a space-time(More)
1 A principal challenge in modelling granular media is to connect the macro-scopic deformation of the aggregate of grains with the average deformation of a small number of individual grains. We used in previous research the two-scale geometry of structured deformations (g, G) and the theory of elastic bodies undergoing disarrangements (non-smooth(More)
  • 1