English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Pinning-Induced Folding-Unfolding Asymmetry in Adhesive Creases

van Limbeek, M. A. J., Essink, M. H., Pandey, A., Snoeijer, J. H., & Karpitschka, S. A. (2021). Pinning-Induced Folding-Unfolding Asymmetry in Adhesive Creases. Physical Review Letters, 127: 028001. doi:10.1103/PhysRevLett.127.028001.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
van Limbeek, Michiel A. J.1, Author              
Essink, Martin H., Author
Pandey, Anupam, Author
Snoeijer, Jacco H., Author
Karpitschka, Stefan A.2, Author              
Affiliations:
1Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063299              
2Group Fluidics in heterogeneous environments, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2466703              

Content

show
hide
Free keywords: -
 Abstract: 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 unfolding of the surface upon releasing the strain is usually not perfect: small scars remain that serve as nuclei for creases during repeated compressions. Here we present creasing experiments with sticky polymer surfaces, using confocal microscopy, which resolve the contact line region where folding and unfolding occurs. It is found that surface tension induces a second fold, at the edge of the self-contact, which leads to a singular elastic stress and self-similar crease morphologies. However, these profiles exhibit an intrinsic folding-unfolding asymmetry that is caused by contact line pinning, in a way that resembles wetting of liquids on imperfect solids. Contact line pinning is therefore a key element of creasing: it inhibits complete unfolding and gives soft surfaces a folding memory.

Details

show
hide
Language(s): eng - English
 Dates: 2021-07-092021
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1103/PhysRevLett.127.028001
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review Letters
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: 6 Volume / Issue: 127 Sequence Number: 028001 Start / End Page: - Identifier: ISSN: 0031-9007
ISSN: 1079-7114