Please use this identifier to cite or link to this item:
http://dx.doi.org/10.25673/88567
Title: | Force chains in crystalline and frustrated packing visualized by stress-birefringent spheres |
Author(s): | Fischer, David Stannarius, Ralf Tell, Karsten Yu, Peidong Sperl, Matthias |
Issue Date: | 2021 |
Type: | Article |
Language: | English |
URN: | urn:nbn:de:gbv:ma9:1-1981185920-905224 |
Subjects: | Force networks Stress-birefringent spheres Granular material Janssen effect |
Abstract: | Force networks play an important role in the stability of configurations when granular material is packed into a container. These networks can redirect part of the weight of grains inside a container to the side walls. We employ monodisperse stress-birefringent spheres to visualize the contact forces in a quasi-2D and a nearly-2D configuration of these spheres in a thin cuboid cell. The packing structures are particularly simple: a hexagonal lattice in the ground state when the cell width is equal to the sphere diameter, and a frustrated, slightly distorted lattice in thicker cells. The force redistribution is substantially changed by this geometrical modification. In both cases, we observe an ‘inverse’ Janssen effect with the pressure decreasing from the top to the bottom of the container when the material is loaded with a weight on top of the vessel. |
URI: | https://opendata.uni-halle.de//handle/1981185920/90522 http://dx.doi.org/10.25673/88567 |
Open Access: | Open access publication |
License: | (CC BY-NC 3.0) Creative Commons Attribution NonCommercial 3.0 |
Sponsor/Funder: | Transformationsvertrag |
Journal Title: | Soft matter |
Publisher: | Royal Soc. of Chemistry |
Publisher Place: | London |
Volume: | 17 |
Issue: | 16 |
Original Publication: | 10.1039/d0sm02048f |
Page Start: | 4317 |
Page End: | 4327 |
Appears in Collections: | Fakultät für Naturwissenschaften (OA) |
Files in This Item:
File | Description | Size | Format | |
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Fischer et al._Force chains_2021.pdf | Zweitveröffentlichung | 10.07 MB | Adobe PDF | View/Open |