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Numerical modeling of wet agglomerates

Abstract : We study the effects of material parameters on the plastic properties and texture of wet agglomerates composed of solid particles by using molecular dynamics simulations under diametrical compression. The numerical algorithm with a capillary cohesion law in which the cohesion force is an explicit function of the gap between particles and liquid-vapor surface tension [1], and the binding liquid content is mainly accounted for a rupture distance druptwith the binding liquid assumed to be distributed homogeneously inside wet agglomerates [2, 3]. We present the method and analyze the behavior and evolution of the microstructure during diametrical compression. We find that due to the rearrangement of wet primary particles during compression, the granule shows a ductile behaviour. The compressive strength of wet agglomerates reaches a plateau before failure due to the irreversible loss of wet contacts between primary particles.
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https://hal.inrae.fr/hal-02929527
Contributor : Jean-Yves Delenne <>
Submitted on : Thursday, September 3, 2020 - 3:10:07 PM
Last modification on : Friday, January 1, 2021 - 4:58:04 AM

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  • HAL Id : hal-02929527, version 1

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Thanh Trung Vo, Patrick Mutabaruka, Saeid Nezamabadi, Jean-Yves Delenne, Farhang Radjai. Numerical modeling of wet agglomerates. DEM 8 – 8th International Conference on Discrete Element Methods, Jul 2019, Enschede, Netherlands. ⟨hal-02929527⟩

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