@article{Gao2025, 
author = {Tianyan Gao and Guorui Wang and Tao Wang and Zijian Chen and Houbo Li and Kun Liu and Zhong Zhang},
title = {Impact of elastic instabilities on friction induced by capillary adhesion},
year = {2025},
journal = {Friction},
volume = {13},
number = {10},
pages = {9441058},
keywords = {elastic modulus, capillary adhesion, friction force, Schallamach wave, tacky regime},
url = {https://www.sciopen.com/article/10.26599/FRICT.2025.9441058},
doi = {10.26599/FRICT.2025.9441058},
abstract = {Transient high friction force usually appears when a hard sphere slides on a soft substrate during the water evaporation. Such a special wetting condition featuring the friction enhancement, even exceeding the friction of dry conditions, is termed as tacky regime. Herein, the impact of Schallamach waves on the friction enhancement induced by capillary adhesion is investigated by integrating microtribometer measurements, interference microscopy visualization, and finite element analysis. The friction peak decreases or even disappears with decreasing elastic modulus of the soft substrate, which is attributed to the nucleation and propagation of Schallamach waves. The increase in friction during the tacky transition depends on the competition between capillary adhesion and stress relief of Schallamach wave.}
}