Jump to main content
Jump to site search

Issue 38, 2017
Previous Article Next Article

Creasing in evaporation-driven cavity collapse

Author affiliations


We report on crease morphology and evolution at the surface of contracting cavities embedded within elastomeric solids of varying composition (Sylgard 184: pre-polymer to crosslinker mixing ratios of 10 : 1, 12 : 1, 17.5 : 1, and 25 : 1). Cavity contraction is achieved through evaporation of an embedded 10 μL liquid droplet. In validation of recent theoretical predictions, strain-stiffening modeled via the Gent constitutive relation [Jin and Suo, JMPS, 2015, 74, 68–79] is found to govern both crease onset and crease density. Specifically, crease onset matches prediction using only experimentally-measured parameters. Neo-Hookean solids are found to prefer initiating creasing with many short creases that join to form a collapsed state with only a few creases, whereas creasing in Gent solids initiates with a few creases that propagate across the cavity surface. These experimental observations are explained by energy minimization using finite element simulation of a cylindrical crease geometry.

Graphical abstract: Creasing in evaporation-driven cavity collapse

Back to tab navigation

Supplementary files

Publication details

The article was received on 26 Jun 2017, accepted on 10 Aug 2017 and first published on 22 Aug 2017

Article type: Paper
DOI: 10.1039/C7SM01258F
Citation: Soft Matter, 2017,13, 6894-6904
  •   Request permissions

    Creasing in evaporation-driven cavity collapse

    M. P. Milner, L. Jin and S. B. Hutchens, Soft Matter, 2017, 13, 6894
    DOI: 10.1039/C7SM01258F

Search articles by author