On capillary bridges in wet granular materials

Mika M. Kohonen; Dimitrios Geromichalos; Mario Scheel; Christof Schier; Stephan Herminghaus

doi:10.1016/j.physa.2004.03.047

On capillary bridges in wet granular materials

Mika M. Kohonen^*, Dimitrios Geromichalos, Mario Scheel, Christof Schier, Stephan Herminghaus

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

112 Citations (Scopus)

Abstract

The properties of wet granular materials are significantly influenced by the presence of microscopic liquid (capillary) bridges between the constituent granules. However, despite the progress which has been made in recent years the dependence of the mechanical properties of such materials on the amount and type of liquid present is still not completely understood. At a very basic level, a better understanding of the distribution of liquid between particle contacts and particle surfaces is required. Here we describe some of our observations on liquid bridge coordination numbers and liquid bridge volumes in model granular materials consisting of glass beads. We also describe experiments on the dynamic deformation of a wet granular material, which reveal a type of shear-thinning behavior that we attribute to the shear-rate dependence of liquid bridge volumes.

Original language	English
Pages (from-to)	7-15
Number of pages	9
Journal	Physica A: Statistical Mechanics and its Applications
Volume	339
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physa.2004.03.047
Publication status	Published - 1 Aug 2004
Event	Proceedings of the International Conference New Materials - Canberra, Vic., Australia Duration: 3 Nov 2003 → 7 Nov 2003

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title = "On capillary bridges in wet granular materials",

abstract = "The properties of wet granular materials are significantly influenced by the presence of microscopic liquid (capillary) bridges between the constituent granules. However, despite the progress which has been made in recent years the dependence of the mechanical properties of such materials on the amount and type of liquid present is still not completely understood. At a very basic level, a better understanding of the distribution of liquid between particle contacts and particle surfaces is required. Here we describe some of our observations on liquid bridge coordination numbers and liquid bridge volumes in model granular materials consisting of glass beads. We also describe experiments on the dynamic deformation of a wet granular material, which reveal a type of shear-thinning behavior that we attribute to the shear-rate dependence of liquid bridge volumes.",

keywords = "Capillary bridges, Liquid bridges, Sandcastles, Wet granular materials",

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note = "Proceedings of the International Conference New Materials ; Conference date: 03-11-2003 Through 07-11-2003",

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AU - Kohonen, Mika M.

AU - Geromichalos, Dimitrios

AU - Scheel, Mario

AU - Schier, Christof

AU - Herminghaus, Stephan

PY - 2004/8/1

Y1 - 2004/8/1

N2 - The properties of wet granular materials are significantly influenced by the presence of microscopic liquid (capillary) bridges between the constituent granules. However, despite the progress which has been made in recent years the dependence of the mechanical properties of such materials on the amount and type of liquid present is still not completely understood. At a very basic level, a better understanding of the distribution of liquid between particle contacts and particle surfaces is required. Here we describe some of our observations on liquid bridge coordination numbers and liquid bridge volumes in model granular materials consisting of glass beads. We also describe experiments on the dynamic deformation of a wet granular material, which reveal a type of shear-thinning behavior that we attribute to the shear-rate dependence of liquid bridge volumes.

AB - The properties of wet granular materials are significantly influenced by the presence of microscopic liquid (capillary) bridges between the constituent granules. However, despite the progress which has been made in recent years the dependence of the mechanical properties of such materials on the amount and type of liquid present is still not completely understood. At a very basic level, a better understanding of the distribution of liquid between particle contacts and particle surfaces is required. Here we describe some of our observations on liquid bridge coordination numbers and liquid bridge volumes in model granular materials consisting of glass beads. We also describe experiments on the dynamic deformation of a wet granular material, which reveal a type of shear-thinning behavior that we attribute to the shear-rate dependence of liquid bridge volumes.

KW - Capillary bridges

KW - Liquid bridges

KW - Sandcastles

KW - Wet granular materials

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U2 - 10.1016/j.physa.2004.03.047

DO - 10.1016/j.physa.2004.03.047

M3 - Conference article

SN - 0378-4371

VL - 339

SP - 7

EP - 15

JO - Physica A: Statistical Mechanics and its Applications

JF - Physica A: Statistical Mechanics and its Applications

IS - 1-2

T2 - Proceedings of the International Conference New Materials

Y2 - 3 November 2003 through 7 November 2003

ER -

On capillary bridges in wet granular materials

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