Viscoelastic material properties determine the contact mechanics of hydrogel spheres
Granular materials are ubiquitous in nature and industry; their mechanical behavior has been a subject of academic and engineering interest for centuries. One of the reasons for their rather complex mechanical behavior is that stresses exerted on a granular material propagate only through contacts b...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-03-01
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| Series: | Frontiers in Physics |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2024.1334325/full |
| _version_ | 1797246753771094016 |
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| author | Chandan Shakya Chandan Shakya Jasper van der Gucht Joshua A. Dijksman Joshua A. Dijksman |
| author_facet | Chandan Shakya Chandan Shakya Jasper van der Gucht Joshua A. Dijksman Joshua A. Dijksman |
| author_sort | Chandan Shakya |
| collection | DOAJ |
| description | Granular materials are ubiquitous in nature and industry; their mechanical behavior has been a subject of academic and engineering interest for centuries. One of the reasons for their rather complex mechanical behavior is that stresses exerted on a granular material propagate only through contacts between the grains. These contacts can change as the packing evolves. This makes any deformation and mechanical response from a granular packing a function of the nature of contacts between the grains and the material response of the material the grains are made of. We present a study in which we isolate the role of the grain material in the contact forces acting between two particles sliding past each other. By using hydrogel particles, we find that a viscoelastic material model, in which the shear modulus decays with time, coupled with a simple Coulomb friction model, captures the experimental results. The results suggest that particle material evolution itself may play a role in the collective behavior of granular materials. |
| first_indexed | 2024-04-24T19:47:49Z |
| format | Article |
| id | doaj.art-cbc57c62e8054f1bb4617839cf4e02e9 |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-04-24T19:47:49Z |
| publishDate | 2024-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-cbc57c62e8054f1bb4617839cf4e02e92024-03-25T04:22:03ZengFrontiers Media S.A.Frontiers in Physics2296-424X2024-03-011210.3389/fphy.2024.13343251334325Viscoelastic material properties determine the contact mechanics of hydrogel spheresChandan Shakya0Chandan Shakya1Jasper van der Gucht2Joshua A. Dijksman3Joshua A. Dijksman4Van der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam, Amsterdam, NetherlandsPhysical Chemistry and Soft Matter, Wageningen University, Wageningen, NetherlandsPhysical Chemistry and Soft Matter, Wageningen University, Wageningen, NetherlandsVan der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam, Amsterdam, NetherlandsPhysical Chemistry and Soft Matter, Wageningen University, Wageningen, NetherlandsGranular materials are ubiquitous in nature and industry; their mechanical behavior has been a subject of academic and engineering interest for centuries. One of the reasons for their rather complex mechanical behavior is that stresses exerted on a granular material propagate only through contacts between the grains. These contacts can change as the packing evolves. This makes any deformation and mechanical response from a granular packing a function of the nature of contacts between the grains and the material response of the material the grains are made of. We present a study in which we isolate the role of the grain material in the contact forces acting between two particles sliding past each other. By using hydrogel particles, we find that a viscoelastic material model, in which the shear modulus decays with time, coupled with a simple Coulomb friction model, captures the experimental results. The results suggest that particle material evolution itself may play a role in the collective behavior of granular materials.https://www.frontiersin.org/articles/10.3389/fphy.2024.1334325/fullsoft mattergranular mechanicscontact mechanicshydrogel particlesviscoelasticity |
| spellingShingle | Chandan Shakya Chandan Shakya Jasper van der Gucht Joshua A. Dijksman Joshua A. Dijksman Viscoelastic material properties determine the contact mechanics of hydrogel spheres Frontiers in Physics soft matter granular mechanics contact mechanics hydrogel particles viscoelasticity |
| title | Viscoelastic material properties determine the contact mechanics of hydrogel spheres |
| title_full | Viscoelastic material properties determine the contact mechanics of hydrogel spheres |
| title_fullStr | Viscoelastic material properties determine the contact mechanics of hydrogel spheres |
| title_full_unstemmed | Viscoelastic material properties determine the contact mechanics of hydrogel spheres |
| title_short | Viscoelastic material properties determine the contact mechanics of hydrogel spheres |
| title_sort | viscoelastic material properties determine the contact mechanics of hydrogel spheres |
| topic | soft matter granular mechanics contact mechanics hydrogel particles viscoelasticity |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2024.1334325/full |
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