7 papers
Corona splashing triggered by a loose monolayer of particles
Ehsan Esmaili, Zih-Yin Chen, Anupam Pandey +3
In nature, high-speed raindrops often impact and spread on particulate surfaces (e.g., soil, plant leaves with spores or pollen). We study the dynamics of droplet impact on a loose…
Pinning-induced folding-unfolding asymmetry in adhesive creases
Michiel A. J. van Limbeek, Martin H. Essink, Anupam Pandey +2
The compression of soft elastic matter and biological tissue can lead to creasing, an instability where a surface folds sharply into periodic self-contacts. Intriguingly, the unfol…
Elastic Rayleigh-Plateau instability: Dynamical selection of nonlinear states
Anupam Pandey, Minkush Kansal, Miguel A. Herrada +2
A slender thread of elastic hydrogel is susceptible to a surface instability that is reminiscent of the classical Rayleigh-Plateau instability of liquid jets. The final, highly non…
Regimes of Soft Lubrication
Martin Essink, Anupam Pandey, Stefan Karpitschka +2
Elastohydrodynamic lubrication, or simply soft lubrication, refers to the motion of deformable objects near a boundary lubricated by a fluid, and is one of the key physical mechani…
On the singular nature of the elastocapillary ridge
A. Pandey, B. Andreotti, S. Karpitschka +3
The functionality of soft interfaces is crucial to many applications in biology and surface science. Recent studies have used liquid drops to probe the surface mechanics of elastom…
The relationship between viscoelasticity and elasticity
J. H. Snoeijer, A. Pandey, M. A. Herrada +1
We consider models for elastic liquids, such as solutions of flexible polymers. They introduce a relaxation time into the system, over which stresses relax. We study the kinema…