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  4. Stick-slip phenomena and Schallamach waves captured using reversible cohesive elements
 
research article

Stick-slip phenomena and Schallamach waves captured using reversible cohesive elements

Ringoot, Evelyne
•
Roch, Thibault  
•
Molinari, Jean-Francois  
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October 1, 2021
Journal Of The Mechanics And Physics Of Solids

Reversibility is of paramount importance in the correct representation of surface peeling in various physical settings, ranging from motility in nature, to gripping devices in robotic applications, and even to sliding of tectonic plates. Modeling the detachment-reattachment sequence, known as stick-slip, imposes several challenges in a continuum framework. Here we exploit customized reversible cohesive elements in a hybrid finite element model that can handle occurrence of snap-through instabilities. The simulations capture various peeling phenomena that emerge in experimental observations, where layers are pulled from a flat, rigid substrate in the direction parallel to the surface. For long layers, periodicity in reattachment is shown to develop and is linked to the concept of Schallamach waves. Further, the connection between surface properties and stick-slip behavior is investigated: we find that stick-slip is linked to the propensity of the interface to localize deformation and damage. Beyond elucidating the various peeling behaviors and the detachment modes, the computational framework developed here provides a straightforward approach for investigation of complex delamination processes, which can guide the development of future applications across different scales and in various settings.

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Type
research article
DOI
10.1016/j.jmps.2021.104528
Web of Science ID

WOS:000685551100005

Author(s)
Ringoot, Evelyne
Roch, Thibault  
Molinari, Jean-Francois  
Massart, Thierry J.
Cohen, Tal
Date Issued

2021-10-01

Publisher

PERGAMON-ELSEVIER SCIENCE LTD

Published in
Journal Of The Mechanics And Physics Of Solids
Volume

155

Article Number

104528

Subjects

Materials Science, Multidisciplinary

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Mechanics

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Physics, Condensed Matter

•

Materials Science

•

Physics

•

finite element method

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cohesive elements

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stick-slip

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schallamach waves

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soft adhesives

•

peeling

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friction mechanisms

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crack-propagation

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adhesion

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models

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damage

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fracture

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stress

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hysteresis

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surfaces

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behavior

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LSMS  
Available on Infoscience
August 28, 2021
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/180940
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