Jump to main content
Jump to site search

Issue 22, 2017
Previous Article Next Article

Achieving high aspect ratio wrinkles by modifying material network stress

Author affiliations

Abstract

Wrinkle aspect ratio, or the amplitude divided by the wavelength, is hindered by strain localization transitions when an increasing global compressive stress is applied to synthetic material systems. However, many examples from living organisms show extremely high aspect ratios, such as gut villi and flower petals. We use three experimental approaches to demonstrate that these high aspect ratio structures can be achieved by modifying the network stress in the wrinkle substrate. We modify the wrinkle stress and effectively delay the strain localization transition, such as folding, to larger aspect ratios by using a zero-stress initial wavy substrate, creating a secondary network with post-curing, or using chemical stress relaxation materials. A wrinkle aspect ratio as high as 0.85, almost three times higher than common values of synthetic wrinkles, is achieved, and a quantitative framework is presented to provide understanding the different strategies and predictions for future investigations.

Graphical abstract: Achieving high aspect ratio wrinkles by modifying material network stress

Back to tab navigation

Supplementary files

Publication details

The article was received on 07 Mar 2017, accepted on 19 May 2017 and first published on 19 May 2017


Article type: Paper
DOI: 10.1039/C7SM00469A
Citation: Soft Matter, 2017,13, 4142-4147
  •   Request permissions

    Achieving high aspect ratio wrinkles by modifying material network stress

    Y. Chen, Y. Wang, T. J. McCarthy and A. J. Crosby, Soft Matter, 2017, 13, 4142
    DOI: 10.1039/C7SM00469A

Search articles by author

Spotlight

Advertisements