Static friction of liquid marbles
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866913911752622080 |
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| author | Takai, Yui Mukoyama, Kei Roy, Pritam Kumar Lagubeau, Guillaume Quéré, David Poincloux, Samuel Mouterde, Timothée |
| author_facet | Takai, Yui Mukoyama, Kei Roy, Pritam Kumar Lagubeau, Guillaume Quéré, David Poincloux, Samuel Mouterde, Timothée |
| contents | Liquid marbles, droplets coated with a granular layer, are highly mobile as particles prevent capillary adhesion with the substrate. Yet, they exhibit static friction due to their granular shell, which resists rolling until it yields. This friction depends on the shell geometry and increases exponentially with grain density, indicating a logistic dependence of interparticle compressive forces on surface coverage, confirmed by yielding measurements in granular rafts. These results reveal the shell's dual role, and establish liquid marbles as a model system for probing granular raft mechanics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_20116 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Static friction of liquid marbles Takai, Yui Mukoyama, Kei Roy, Pritam Kumar Lagubeau, Guillaume Quéré, David Poincloux, Samuel Mouterde, Timothée Soft Condensed Matter Fluid Dynamics Liquid marbles, droplets coated with a granular layer, are highly mobile as particles prevent capillary adhesion with the substrate. Yet, they exhibit static friction due to their granular shell, which resists rolling until it yields. This friction depends on the shell geometry and increases exponentially with grain density, indicating a logistic dependence of interparticle compressive forces on surface coverage, confirmed by yielding measurements in granular rafts. These results reveal the shell's dual role, and establish liquid marbles as a model system for probing granular raft mechanics. |
| title | Static friction of liquid marbles |
| topic | Soft Condensed Matter Fluid Dynamics |
| url | https://arxiv.org/abs/2506.20116 |