@article{d537c0c1181e44e5af0524c9c70eff2f,
title = "A robust method for quantification of surface elasticity in soft solids",
abstract = "We propose an approach to measure surface elastic constants of soft solids. Generally, this requires one to probe interfacial mechanics at around the elastocapillary length scale, which is typically microscopic. Deformations of microscopic droplets embedded in soft solids are particularly attractive, because they avoid intrinsic nonlinearities associated with previous experiments such as the equilibrium of contact lines and the relaxation of patterned surfaces. We derive analytical solutions for the shape of droplets under uniaxial deformation and for the radius of droplets upon hydrostatic inflation. We couple mechanical deformations to the dissolution of droplets to assess experimental sensitivities. Combined with experimental data from both modes of deformation, one should be able to reliably extract the complete set of isotropic surface material parameters following a specific minimization procedure.",
keywords = "Elastocapillarity, Soft solids, Surface elasticity",
author = "Stefanie Heyden and Vlahovska, {Petia M.} and Dufresne, {Eric R.}",
note = "Funding Information: This work was funded via the SNF Ambizione grant PZ00P2186041 . Great thanks goes to Robert Style (ETH Zurich) and Nicolas Bain (ETH Zurich) for many helpful discussions. We thank Siddhant Kumar (TU Delft) for his advice on stochastics of multivariate optimizations problems, as well as Pradeep Sharma (University of Houston) for sharing his expertise in the realm of surface elasticity. On {\textquoteleft}surface{\textquoteright} matters in a more abstract sense, we enjoyed discussions on greek philology with Nicola Schmid (University of Zurich). Funding Information: This work was funded via the SNF Ambizione grant PZ00P2186041. Great thanks goes to Robert Style (ETH Zurich) and Nicolas Bain (ETH Zurich) for many helpful discussions. We thank Siddhant Kumar (TU Delft) for his advice on stochastics of multivariate optimizations problems, as well as Pradeep Sharma (University of Houston) for sharing his expertise in the realm of surface elasticity. On ?surface? matters in a more abstract sense, we enjoyed discussions on greek philology with Nicola Schmid (University of Zurich). Publisher Copyright: {\textcopyright} 2022 The Author(s)",
year = "2022",
month = apr,
doi = "10.1016/j.jmps.2022.104786",
language = "English (US)",
volume = "161",
journal = "Journal of the Mechanics and Physics of Solids",
issn = "0022-5096",
publisher = "Elsevier Limited",
}