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  Structural similarity between dry and wet sphere packings

Weis, S. J. A., Schröder-Turk, G. E., & Schröter, M. (2019). Structural similarity between dry and wet sphere packings. New Journal of Physics, 21: 043020. doi:10.1088/1367-2630/ab1517.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-8695-D Version Permalink: http://hdl.handle.net/21.11116/0000-0003-8696-C
Genre: Journal Article

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 Creators:
Weis, Simon J. A.1, Author              
Schröder-Turk, Gerd E., Author
Schröter, Matthias1, Author              
Affiliations:
1Group Statistical mechanics of granular media, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063310              

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 Abstract: Themechanical properties of granularmaterials change significantly in the presence of awetting liquid which creates capillary bridges between the particles. This results e.g. in a reduced value of the volume fractionwhen 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 <Z> and the shape isotropy b of the Voronoi cells of the particles. Additionally,we show that the number of liquid bridges per sphere <B> is approximately equal to <Z>+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.

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Language(s): eng - English
 Dates: 2019-04-15
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1088/1367-2630/ab1517
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Title: New Journal of Physics
Source Genre: Journal
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Publ. Info: Bristol : IOP Publishing
Pages: 8 Volume / Issue: 21 Sequence Number: 043020 Start / End Page: - Identifier: ISSN: 1367-2630
CoNE: https://pure.mpg.de/cone/journals/resource/954926913666