The constitutive behavior and deformation characteristics of uncemented granular materials are to a large extent derived from the fabric or geometry of the particle structure and the interparticle friction resulting from normal forces acting on particles or groups of particles. Granular materials consist of discrete particles with a fabric (microstructure) that changes under loading. Synchrotron micro-computed tomography (SMT) has emerged as a powerful non-destructive 3D scanning technique to study geomaterials. In this paper, SMT was used to acquire in situ scans of the oedometry test of a column of three silica sand particles. The sand is known as ASTM 20–30 Ottawa sand, and has a grain size between US sieves #20 (0.841 mm) and #30 (0.595 mm). The characteristics and evolution of particle fracture in sand were examined using SMT images, and a 3D discrete element method (DEM) was used to model the fracture behavior of sand particles. It adopts the bonded particle model to generate a crushable agglomerate that consists of a large number of small spherical sub-particles. The agglomerate shape matches the 3D physical shape of the tested sand particles by mapping the particle morphology from the SMT images. The paper investigates and discusses the influence of agglomerate packing (i.e., the number and size distribution of spherical sub-particles that constitute the agglomerate) and agglomerate shape on the fracture behavior of crushable particles.
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Mehmet B. Cil 1 ; Khalid A. Alshibli 1
@article{CRMECA_2015__343_2_133_0, author = {Mehmet B. Cil and Khalid A. Alshibli}, title = {Modeling the influence of particle morphology on the fracture behavior of silica sand using a {3D} discrete element method}, journal = {Comptes Rendus. M\'ecanique}, pages = {133--142}, publisher = {Elsevier}, volume = {343}, number = {2}, year = {2015}, doi = {10.1016/j.crme.2014.11.004}, language = {en}, }
TY - JOUR AU - Mehmet B. Cil AU - Khalid A. Alshibli TI - Modeling the influence of particle morphology on the fracture behavior of silica sand using a 3D discrete element method JO - Comptes Rendus. Mécanique PY - 2015 SP - 133 EP - 142 VL - 343 IS - 2 PB - Elsevier DO - 10.1016/j.crme.2014.11.004 LA - en ID - CRMECA_2015__343_2_133_0 ER -
%0 Journal Article %A Mehmet B. Cil %A Khalid A. Alshibli %T Modeling the influence of particle morphology on the fracture behavior of silica sand using a 3D discrete element method %J Comptes Rendus. Mécanique %D 2015 %P 133-142 %V 343 %N 2 %I Elsevier %R 10.1016/j.crme.2014.11.004 %G en %F CRMECA_2015__343_2_133_0
Mehmet B. Cil; Khalid A. Alshibli. Modeling the influence of particle morphology on the fracture behavior of silica sand using a 3D discrete element method. Comptes Rendus. Mécanique, Mechanics of granular and polycrystalline solids, Volume 343 (2015) no. 2, pp. 133-142. doi : 10.1016/j.crme.2014.11.004. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2014.11.004/
[1] Changes to particle characteristics associated with the compression of sands, Geotechnique, Volume 61 (2011) no. 6, pp. 459-471 | DOI
[2] Micro- and macro-mechanical behaviour of DEM crushable materials, Geotechnique, Volume 58 (2008) no. 6, pp. 471-480 | DOI
[3] The mechanics of rigid irregular particles subject to uniaxial compression, Geotechnique, Volume 62 (2012) no. 8, pp. 681-692 | DOI
[4] DEM analysis of crushing around driven piles in granular materials, Geotechnique, Volume 55 (2005) no. 8, pp. 617-623 | DOI
[5] Discrete element modelling of yielding and normal compression of sand, Geotechnique, Volume 52 (2002) no. 4, pp. 299-304 | DOI
[6] Discrete element simulation of crushable soil, Geotechnique, Volume 53 (2003) no. 7, pp. 633-641
[7] Crushing and plastic deformation of soils simulated using DEM, Geotechnique, Volume 54 (2004) no. 2, pp. 131-141 | DOI
[8] 3D assessment of fracture of sand particles using discrete element method, Geotech. Lett., Volume 2 ( July–September 2012 ), pp. 161-166
[9] Modeling of sand particle fracture using discrete element method and synchrotron micro-tomography images, GSP 234, Atlanta, GA, USA, ASCE (2014), pp. 2822-2829
[10] A bonded-particle model for rock, Int. J. Rock Mech. Min. Sci., Volume 41 (2004) no. 8, pp. 1329-1364 | DOI
- Effect of Particle Breakage of Sand Under High Oedometric Stress on its Microstructural Properties Using 3D X-ray Micro-tomography, Indian Geotechnical Journal, Volume 54 (2024) no. 6, p. 2379 | DOI:10.1007/s40098-024-00879-9
- Experimental and numerical study of size effects on the crushing strength of rockfill particles, International Journal for Numerical and Analytical Methods in Geomechanics, Volume 46 (2022) no. 11, p. 2060 | DOI:10.1002/nag.3379
- Morphology Characteristics of the Fragments Produced by Rock Grain Crushing, International Journal of Geomechanics, Volume 22 (2022) no. 4 | DOI:10.1061/(asce)gm.1943-5622.0002329
- DEM-FEM Coupling Analysis of Safe Landing of Reentry Capsule Considering Landing Attitude and Rebound Response, Journal of Aerospace Engineering, Volume 34 (2021) no. 4 | DOI:10.1061/(asce)as.1943-5525.0001267
- Influence of Sand Morphology on Interparticle Force and Stress Transmission Using Three-Dimensional Discrete- and Finite-Element Methods, Journal of Engineering Mechanics, Volume 147 (2021) no. 10 | DOI:10.1061/(asce)em.1943-7889.0001977
- Triaxial compression in sands using FDEM and micro-X-ray computed tomography, Computers and Geotechnics, Volume 124 (2020), p. 103638 | DOI:10.1016/j.compgeo.2020.103638
- Experimental and numerical investigation of Weibullian behavior of grain crushing strength, Geoscience Frontiers, Volume 11 (2020) no. 2, p. 401 | DOI:10.1016/j.gsf.2019.07.007
- Three-Dimensional Evaluation of Sand Particle Fracture Using Discrete-Element Method and Synchrotron Microcomputed Tomography Images, Journal of Geotechnical and Geoenvironmental Engineering, Volume 146 (2020) no. 7 | DOI:10.1061/(asce)gt.1943-5606.0002281
- Finite element analyses of single particle crushing tests incorporating computed tomography imaging and damage mechanics, Computers and Geotechnics, Volume 115 (2019), p. 103158 | DOI:10.1016/j.compgeo.2019.103158
- DEM modelling of sequential fragmentation of zeolite granules under oedometric compression based on XCT observations, Powder Technology, Volume 347 (2019), p. 66 | DOI:10.1016/j.powtec.2019.02.050
- Modeling the fragmentation of rock grains using computed tomography and combined FDEM, Powder Technology, Volume 308 (2017), p. 388 | DOI:10.1016/j.powtec.2016.11.046
- Influence of Particle Shape on Mechanical Behavior of Granular Materials, Proceedings of the 7th International Conference on Discrete Element Methods, Volume 188 (2017), p. 245 | DOI:10.1007/978-981-10-1926-5_28
- , Geo-Chicago 2016 (2016), p. 227 | DOI:10.1061/9780784480137.023
- Smėlio dalelių morfologinių parametrų įtakos grunto mechaninėms savybėms eksperimentiniai ir skaitiniai tyrimai, 2015 | DOI:10.20334/2350-m
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