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research article

Discrete element modelling of drying shrinkage and cracking of soils

Péron, Hervé
•
Delenne, Jean-Louis
•
Laloui, Lyesse  
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2009
Computers and Geotechnics

This paper is aimed at showing the efficiency of discrete element modelling for the prediction and understanding of drying shrinkage and associated cracking. The discrete element approach used is presented first. Cohesive forces between grains, as well as drying shrinkage deformation, are included in the formulation. A numerical model is then used to simulate drying shrinkage experiments conducted on a fine-grained soil. The numerical simulations agree well with the experimental measurements. When drying shrinkage is constrained at the boundaries, and when moisture gradients develop in the drying soil,the model is able to predict the time of the occurrence of cracking, as well as the crack pattern formed. Finite element simulations and the discrete element approach both predict similar behaviours before cracking occurs. The proposed discrete element approach is highly promising for studying the origins and causes of cracking in soils.

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Type
research article
DOI
10.1016/j.compgeo.2008.04.002
Web of Science ID

WOS:000262249700008

Author(s)
Péron, Hervé
Delenne, Jean-Louis
Laloui, Lyesse  
El Youssoufi, Said
Date Issued

2009

Published in
Computers and Geotechnics
Volume

36

Start page

61

End page

69

Subjects

drying shrinkage

•

cracking

•

discrete elements

•

experiments

•

numerical simulations

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LMS  
Available on Infoscience
April 15, 2008
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/20512
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