Structural similarity between dry and wet sphere packings

dc.contributor.author

Weis, Simon

dc.contributor.author

Schröder-Turk, Gerd E

dc.contributor.author

Schröter, Matthias

dc.date.accessioned

2020-02-18T21:49:27Z

dc.date.available

2020-02-18T21:49:27Z

dc.date.updated

2020-02-18T21:49:20Z

dc.description.abstract

The mechanical properties of granular materials change significantly in the presence of a wetting liquid which creates capillary bridges between the particles. Here we demonstrate, using X-ray tomographies of dry and wet sphere packings, that this change in mechanical properties is not accompanied by structural differences between the packings. We characterize the latter 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.

dc.identifier.issn

1367-2630

dc.identifier.uri

https://hdl.handle.net/10161/20167

dc.publisher

IOP Publishing

dc.relation.ispartof

New Journal of Physics

dc.relation.isversionof

10.1088/1367-2630/ab1517

dc.subject

cond-mat.soft

dc.subject

cond-mat.soft

dc.title

Structural similarity between dry and wet sphere packings

dc.type

Journal article

duke.contributor.orcid

Schroter, Matthias|0000-0002-8332-5585

pubs.begin-page

043020

pubs.end-page

043020

pubs.issue

4

pubs.organisational-group

Trinity College of Arts & Sciences

pubs.organisational-group

Duke

pubs.publication-status

Published online

pubs.volume

21

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
2019_bridges_and_contact.pdf
Size:
942.88 KB
Format:
Adobe Portable Document Format
Description:
Published version