Study of vibrated granular arrangements by X-Ray tomography
| Autor: | Emilie Rouèche, Gérard Thomas, Jean-Michel Missiaen, Jean-Louis Gelet |
|---|---|
| Přispěvatelé: | Toucas, Andrée-Aimée, Ramón García-Rojo, Hans J. Herrmann and Sean McNamara, Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Département Procédés et évolution des systèmes avec solides (ProcESS-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-SPIN, Laboratoire des Procédés en Milieux Granulaires (LPMG-EMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de thermodynamique et physico-chimie métallurgiques (LTPCM), Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG), Ferraz-Shawmut, Institut National Polytechnique de Grenoble, Ferraz Shawmut |
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: | |
| Zdroj: | HAL Powders and Grains 2005 5th International Conference on Micromechanics of Granular Media 5th International Conference on Micromechanics of Granular Media, Jul 2005, Stuttgart, Germany. pp.1173-1176 |
| Popis: | International audience; The aim of this work is to analyse the microstructure variations of sand packings during vibrations by X-ray tomography. X-Ray tomography is a non destructive technique providing 3D information on the microstructure of materials. It is becoming very attractive to study granular packings. Mathematical morphology tools are used to analyze the packing fraction, the size distribution in the sand and in the porous phase. Axial and radial dispersion are also analyzed. At first, image analysis is used to check the homogeneity of the packing fraction of our initial state before vibrations. Then loose and dense packings after vibrating have been compared using the intercepts distribution in the sand and in the porous phase. Effects of compaction and expansion due to vibration on packing characteristics are discussed from the results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|