| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Pereira, Jm
École des Ponts ParisTech
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Effects of microstructure on THM behaviour of geomaterialscitations
- 2023Effect of supercritical carbonation on porous structure and mechanical strength of cementitious materials modified with bacterial nanocellulosecitations
- 2023Water retention curve of clayey sands determined from pore structure by using various methodscitations
- 2023Pore changes in an illitic clay during one-dimensional compressioncitations
- 2022Cement with bacterial nanocellulose cured at reservoir temperature: Mechanical performance in the context of CO2 geological storagecitations
- 2021Impact of an SRA (hexylene glycol) on irreversible drying shrinkage and pore solution properties of cement pastescitations
- 2020Contactless probing of polycrystalline methane hydrate at pore scale suggests weaker tensile properties than thoughtcitations
- 2020CO2 geological storage: Microstructure and mechanical behavior of cement modified with a biopolymer after carbonationcitations
- 2018Fabric characterisation in transitional soilscitations
- 2017Numerical study of one-dimensional compression of granular materials. II. Elastic moduli, stresses, and microstructure.citations
- 2017Poromechanics VI: Proceedings of the Sixth Biot Conference on Poromechanics
- 2017Investigation into macroscopic and microscopic behaviors of wet granular soils using discrete element method and X-ray computed tomography
- 2015Internal states, stress-strain behavior and elasticity in oedometrically compressed model granular materials
Places of action
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article
Investigation into macroscopic and microscopic behaviors of wet granular soils using discrete element method and X-ray computed tomography
Abstract
We present an investigation into macroscopic and microscopic behaviors of wet granular soils using the discrete element method (DEM) and the X-ray Computed Tomography (XRCT) observations. The specimens are first prepared in very loose states, with frictional spherical grains in the presence of a small amount of an interstitial liquid. Experimental oedometric tests are carried out with small glass beads, while DEM simulations implement a model of spherical grains joined by menisci. Both in experiments and in simulations, loose configurations with solid fraction as low as 0.30 are prepared under low stress, and undergo a gradual collapse in compression, until the solid fraction of cohesionless bead packs (0.58 to 0.6) is obtained. In the XRCT tests, four 3D tomography images corresponding to different typical stages of the compression curve are used to characterize the microstructure.