Journal article
Structural similarity between dry and wet sphere packings
New Journal of Physics, Vol.21(4)
2019
Abstract
The mechanical properties of granular materials change significantly in the presence of a wetting liquid which creates capillary bridges between the particles. This results e.g. in a reduced value of the volume fraction when a packing is prepared with added liquid. Here we use x-ray tomography to demonstrate that this change in mechanical properties is not accompanied by structural differences between dry and wet sphere packings when compared at the same volume fraction. We characterize the structure of the packings by the average numbers of contacts of each sphere $\langle Z\rangle $ and the shape isotropy $\langle {\beta }_{0}^{2,0}\rangle $ of the Voronoi cells of the particles. Additionally, we show that the number of liquid bridges per sphere $\langle B\rangle $ is approximately equal to $\langle Z\rangle +2$, independent of the volume fraction of the packing. These findings will be helpful in guiding the development of both particle-based models and continuum mechanical descriptions of wet granular matter.
Details
- Title
- Structural similarity between dry and wet sphere packings
- Authors/Creators
- S. Weis (Author/Creator) - Friedrich-Alexander-Universität Erlangen-NürnbergG.E. Schröder-Turk (Author/Creator) - Australian National UniversityM. Schröter (Author/Creator) - Max Planck Institute for Dynamics and Self-Organization
- Publication Details
- New Journal of Physics, Vol.21(4)
- Publisher
- Institute of Physics Publishing
- Identifiers
- 991005541300307891
- Copyright
- © 2019 The Author(s)
- Murdoch Affiliation
- School of Engineering and Information Technology
- Language
- English
- Resource Type
- Journal article
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InCites Highlights
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 7 Engineering & Materials Science
- 7.139 Energy & Fuels
- 7.139.524 Fluidization
- Web Of Science research areas
- Physics, Multidisciplinary
- ESI research areas
- Physics