Interpretation of Elasticity of Liquid Marbles

TL;DR

This paper proposes a model explaining the elastic behavior of liquid marbles, correlating surface deformation with volume conservation, and estimates their Young modulus based on experimental data.

Contribution

It introduces a semi-quantitative model for liquid marble elasticity that accounts for surface growth and volume conservation, providing insights into their mechanical properties.

Findings

Model explains elasticity with surface growth under volume conservation

Estimates effective Young modulus of liquid marbles

Shows dependence of Young modulus on marble volume

Abstract

Liquid marbles are non-stick droplets covered with micro-scaled particles. Liquid marbles demonstrate quasi-elastic properties when pressed. The interpretation of the phenomenon of elasticity of liquid marbles is proposed. The model considering the growth in the marble surface in the course of deformation under the conservation of marbles volume explains semi-quantitatively the elastic properties of marbles in satisfactory agreement with the reported experimental data. The estimation of the effective Young modulus of marbles and its dependence on the marble volume are reported.