Why soft contacts are stickier when breaking than when making them
Abstract: Soft solids are sticky. They attract each other and spontaneously form a large area of contact. Their force of attraction is higher when separating than when forming contact, a phenomenon known as adhesion hysteresis. The common explanation for this hysteresis is viscoelastic energy dissipation or contact aging. Here, we use experiments and simulations to show that it emerges even for perfectly elastic solids. Pinning by surface roughness triggers the stick-slip motion of the contact line, dissipating energy. We derive a simple and general parameter-free equation that quantitatively describes contact formation in the presence of roughness. Our results highlight the crucial role of surface roughness and present a fundamental shift in our understanding of soft adhesion
- Location
-
Deutsche Nationalbibliothek Frankfurt am Main
- Extent
-
Online-Ressource
- Language
-
Englisch
- Notes
-
ISSN: 2375-2548
- Event
-
Veröffentlichung
- (where)
-
Freiburg
- (who)
-
Universität
- (when)
-
2024
- Creator
- DOI
-
10.1126/sciadv.adl1277
- URN
-
urn:nbn:de:bsz:25-freidok-2459208
- Rights
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
-
25.03.2025, 1:57 PM CET
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Sanner, Antoine
- Kumar, Nityanshu
- Dhinojwala, Ali
- Jacobs, Tevis D. B.
- Pastewka, Lars
- Universität
Time of origin
- 2024
Other Objects (12)
When Lightning Strikes Thrice: Breaking Thunderbolt 3 Security
When economic growth is less than exponential
When economic growth is less than exponential
When economic growth is less than exponential
When economic growth is less than exponential
When are groups less moral than individuals?
When Economic Growth is Less than Exponential
When the plus strategy performs better than the comma strategy - and when not
When queueing is better than push and shove
When being wasteful appears better than feeling wasteful
When Queueing is Better than Push and Shove
Measuring memory: Python memory profilers and when to use them
When Lightning Strikes Thrice: Breaking Thunderbolt 3 Security
When economic growth is less than exponential
When economic growth is less than exponential
When economic growth is less than exponential
When economic growth is less than exponential
When are groups less moral than individuals?
When Economic Growth is Less than Exponential
When the plus strategy performs better than the comma strategy - and when not
When queueing is better than push and shove
When being wasteful appears better than feeling wasteful
When Queueing is Better than Push and Shove
Measuring memory: Python memory profilers and when to use them
When Lightning Strikes Thrice: Breaking Thunderbolt 3 Security
When economic growth is less than exponential
When economic growth is less than exponential
When economic growth is less than exponential
When economic growth is less than exponential
When are groups less moral than individuals?
When Economic Growth is Less than Exponential
When the plus strategy performs better than the comma strategy - and when not
When queueing is better than push and shove
When being wasteful appears better than feeling wasteful
When Queueing is Better than Push and Shove