How Does A Porous Shell Collapse? Delayed Buckling And Guided Folding Of Inhomogeneous Capsules
Soft Condensed Matter
2012-09-28 v2 Mesoscale and Nanoscale Physics
Materials Science
Statistical Mechanics
Biological Physics
Fluid Dynamics
Abstract
Colloidal capsules can sustain an external osmotic pressure; however, for a sufficiently large pressure, they will ultimately buckle. This process can be strongly influenced by structural inhomogeneities in the capsule shells. We explore how the time delay before the onset of buckling decreases as the shells are made more inhomogeneous; this behavior can be quantitatively understood by coupling shell theory with Darcy's law. In addition, we show that the shell inhomogeneity can dramatically change the folding pathway taken by a capsule after it buckles.
Keywords
Cite
@article{arxiv.1209.0758,
title = {How Does A Porous Shell Collapse? Delayed Buckling And Guided Folding Of Inhomogeneous Capsules},
author = {Sujit S. Datta and Shin-Hyun Kim and Jayson Paulose and Alireza Abbaspourrad and David R. Nelson and David A. Weitz},
journal= {arXiv preprint arXiv:1209.0758},
year = {2012}
}
Comments
In press; Physical Review Letters (2012)