We have developed a novel computational scheme that allows direct numerical simulation of the mechanical behavior of sticky granular matter under stress. We present here the general method, with particular emphasis on the particle features at the nanometric scale. It is demonstrated that, although sticky granular material is quite complex and is a good example of a challenging computational problem (it is a dynamical problem, with irreversibility, self‐organization and dissipation), its main features may be reproduced on the basis of rather simple numerical model, and a small number of physical parameters. This allows precise analysis of the possible deformation processes in soft materials submitted to mechanical stress. This results in direct relationship between the macroscopic rheology of these pastes and local interactions between the particles.
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21 February 2008
COMPLEX SYSTEMS: 5th International Workshop on Complex Systems
25–28 September 2007
Sendai (Japan)
Research Article|
February 21 2008
How a Colloidal Paste Flows—Scaling Behaviors in Dispersions of Aggregated Particles under Mechanical Stress—
R. Botet;
R. Botet
aLaboratoire de Physique des Solides, Université Paris‐Sud, CNRS‐UMR8502, Orsay F‐91405, France
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B. Cabane;
B. Cabane
bLaboratoire PMMH, ESPCI, 10 Rue Vauquelin, Paris Cedex 05 F‐75231, France
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M. Clifton;
M. Clifton
cLaboratoire de Génie Chimique, Université Paul Sabatier, CNRS‐UMR5503, Toulouse F‐31062, France
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M. Meireles;
M. Meireles
cLaboratoire de Génie Chimique, Université Paul Sabatier, CNRS‐UMR5503, Toulouse F‐31062, France
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R. Seto
R. Seto
aLaboratoire de Physique des Solides, Université Paris‐Sud, CNRS‐UMR8502, Orsay F‐91405, France
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AIP Conf. Proc. 982, 320–325 (2008)
Citation
R. Botet, B. Cabane, M. Clifton, M. Meireles, R. Seto; How a Colloidal Paste Flows—Scaling Behaviors in Dispersions of Aggregated Particles under Mechanical Stress—. AIP Conf. Proc. 21 February 2008; 982 (1): 320–325. https://doi.org/10.1063/1.2897806
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