Proceedings of the 7th International Conference on Discrete Element Methods

Front Matter....Pages i-xlix
Front Matter....Pages 1-1
DEM Modelling in Geomechanics: Some Recent Breakthroughs....Pages 3-12
From Particles in Steady State Shear Bands via Micro-Macro to Macroscopic Rheology Laws....Pages 13-19
Discrete Dynamical Model of Multi-stage Twist Superconducting Cable and Prediction of Its Multilayer Stress-Strain Relationship....Pages 21-28
A General Contact Theory for Non-spherical Particles....Pages 29-35
DEM Simulations in Mining and Mineral Processing....Pages 37-43
Discrete Element Modeling of Ice Loads on Ship and Offshore Structures....Pages 45-54
Front Matter....Pages 55-55
Evaluation of Coarse Graining DEM Using Representative Particle Model....Pages 57-65
On the Apparent Non-coaxiality of the Tangential Interaction....Pages 67-72
Sample Size Effect on DEM Simulations of Binary Mixture....Pages 73-80
Evolutions of Fabric and Contact Forces of Granular Materials Under Continuously Varying b Value Using DEM....Pages 81-90
Random Packing of Tetrahedral Particles Using the Polyhedral and Multi-sphere Discrete Element Method....Pages 91-99
Energy Dissipation During Impact of an Agglomerate Composed of Autoadhesive Elastic-Plastic Particles....Pages 101-107
Effect of Particle Shape on Geogrid-Reinforced Granules....Pages 109-116
Applicability Evaluation of Similarity Principle in Discrete Element Analysis....Pages 117-123
Studies of the Performance of Particle Dampers in Centrifugal Fields and the Influence of Recovery Coefficient on Vibration Suppression....Pages 125-137
Algorithms and Capabilities of Solidity to Simulate Interactions and Packing of Complex Shapes....Pages 139-149
Particle Shape Consideration in DEM Triaxial Test Simulations....Pages 151-160
Study on the Microscopic Structure and the Bearing Capacity of the Elliptical Granular System in the Random Particle Size....Pages 161-168
Improving Estimates of Critical Time-Steps for Discrete Element Simulations....Pages 169-175
Discussion on the Difference of the Grain Particle Parameters in Reality and DEM....Pages 177-182
Front Matter....Pages 55-55
Stochastic Discrete Element Modelling of Rough Particles....Pages 183-191
Sphere Packing Based on Geometric Algorithm Generation Method....Pages 193-200
Verification of an Automated Work Flow for Discrete Element Material Parameter Calibration....Pages 201-208
The Influence of Rolling Resistance on Granular Responses Under Triaxial Loading Paths....Pages 209-216
An Investigation of Single Particle Crushing Tests on Irregular-Shaped Quartz Sand with DEM....Pages 217-224
The Influence of Rotational Resistance on Critical State of Granular Materials....Pages 225-233
A New Method for the Generation of Polydisperse DEM Specimens....Pages 235-244
Influence of Particle Shape on Mechanical Behavior of Granular Materials....Pages 245-252
The Influence of Particles’ Aspect Ratio on the Shear Behaviour of Granular Materials....Pages 253-264
Front Matter....Pages 265-265
Advances in Multiscale FEM-DEM Modeling of Granular Materials....Pages 267-279
Modeling the Particle Breakage by Using Combined DEM and SBFEM....Pages 281-288
Numerical Simulations of the Interactions Between a Pneumatic Tire and Granular Sand by 3D DEM-FEM....Pages 289-300
Combined Finite-Discrete Element Method Modeling of Rock Failure Problems....Pages 301-309
A New Finite Discrete Element Approach for Heat Transfer in Complex Shaped Multi Bodied Contact Problems....Pages 311-327
Numerical Simulation of In-Plane Loaded Unreinforced Masonry Walls Based on Homogenized Discrete Element Model....Pages 329-342
Study on Micro-Mechanism of Concrete Hydraulic Fracturing Using DEM....Pages 343-350
Finite-Discrete Element Analysis of Interface Shear Damage to HDPE Geomembrane in Contact with Gravel Drainage Layer....Pages 351-359
Simulation of Particle Dampers Using the Combined Finite-Discrete Element Method—A Simple Case....Pages 361-367
Investigation on the Integrity of Cement Annulus During Multi-stage Horizontal Fracturing with FEM/DEM....Pages 369-376
Evaluation of DEM and FEM/DEM in Modeling the Fracture Process of Glass Under Hard-Body Impact....Pages 377-388
Front Matter....Pages 265-265
Multiscale Modeling of Granular Assemblies Based on Different Micromechanical Strain....Pages 389-396
Simulation and Characterisation of Packed Columns for Cylindrical Catalyst Supports and Other Complex-Shaped Bodies....Pages 397-406
Front Matter....Pages 407-407
A Gradient Model for Granular Materials Based on Thermo-micromechanics....Pages 409-421
Elasticity and Mechanical Response of a Composite Particle System Induced by a Vertical Loading....Pages 423-428
Heavy Impact Compaction Modeling and Analysis on Unbound Paving Mixtures....Pages 429-436
A Simple Multiscale Model for Granular Soils with Geosynthetic Inclusion....Pages 437-444
A Novel Rock Contact Model Considering Water-Softening and Chemical Weathering Effects....Pages 445-453
Investigation of Contact Parameters of DEM Model in Flow Process....Pages 455-463
On the Stress-Force-Fabric Relationship in Anisotropic Granular Materials....Pages 465-473
Influences of Stiffness Ratio, Friction Coefficient and Strength Ratio on the Macro Behavior of Cemented Sand Based on DEM....Pages 475-483
A 3D Mesoscopic Model for Simulating Failure Process of Concrete Based on Discrete Element Method....Pages 485-495
DEM Simulation of Random Loose Packings of Micron-Sized Particles with Both Adhesion and Friction....Pages 497-513
Preliminary DEM Analysis on Micro-Mechanical Behavior of the Composite Cemented Granules Under Complex Stress Conditions....Pages 515-524
Front Matter....Pages 525-534
CFD-DEM Simulation of Flocculation and Sedimentation of Cohesive Fine Particles....Pages 535-535
Elasticity Constants of Clay Minerals Using Molecular Mechanics Simulations....Pages 537-542
A Comparative Study of Three Classes of Boundary Treatment Schemes for Coupled LBM/DEM Simulations....Pages 543-550
Application of the Method of Peridynamics to the Simulation of Hydraulic Fracturing Process....Pages 551-560
Application of the Coupled Discrete Element Modelling and Modelica Based Multi-body Dynamics in System-Level Modelling....Pages 561-569
Equilibrium Distribution Functions in Entropic Lattice Boltzmann Method....Pages 571-578
Front Matter....Pages 579-592
Parametric Sensitivity Study of Particle Shape Effect Through 3D Printing....Pages 535-535
Study on the Multi-sphere Method Modeling the 3D Particle Morphology in DEM....Pages 593-600
An Upgraded CFD-DEM Investigation on the Liquefaction Mechanism of Sand Under Cyclic Loads....Pages 601-608
Controlling the Flow Structure in Fluidized Bed: A CFD-DEM Approach....Pages 609-617
Front Matter....Pages 619-626
The Effect of Powder Flowability in the Selective Laser Sintering Process....Pages 627-627
A DEM Analysis of Particle Climbing in a Vibrating Pipe....Pages 629-636
Influence of Inclined Angles on the Stability of Inclined Granular Flows Down Rough Bottoms....Pages 637-645
DEM Simulation of Particle Flow in a Parallel-Hopper Bell-Less Blast Furnace Charging Model....Pages 647-657
Basal Effect in Mono- and Bi-disperse Chute Flows....Pages 659-669
LBDEMcoupling: Open-Source Power for Fluid-Particle Systems....Pages 671-678
Numerical Simulation of the Particular Flow on an Agricultural Screen with a Complex Motion Based on the Coupling Model of PMBK with DEM....Pages 679-686
Study on Drag Force Coefficients in Modeling Granular Flows in a Slot-Rectangular Spouted Bed....Pages 687-695
The Development of a Simplified System for Measuring the Passage of Particles on and Through Moving Screen Surfaces Using DEM....Pages 697-707
Front Matter....Pages 709-721
Analysis of Strength Characteristics for Granular Materials Based on Discrete Element Simulation....Pages 723-723
On the Use of the Uniaxial Shear Test for DEM Calibration....Pages 725-732
Investigation on the Rate-Dependent Behavior of Sands via DEM....Pages 733-740
DEM Analysis of Inclined Cone Penetration Test in Structured Sand Ground....Pages 741-748
Exploring the Undrained Cyclic Behaviour of Sand Using DEM....Pages 749-755
Effect of Particle Shape on the Formation of Sandpile....Pages 757-765
Influence of Inherent Anisotropy on the Soil Behavior in Simple Shear Tests Using DEM....Pages 767-776
Front Matter....Pages 777-784
Influence of Rigid and Flexible Top Boundaries on Geogrid Pullout Behavior Using DEM....Pages 723-723
DEM Analysis of Cone Penetration Tests in Pure and Structured Sand Grounds....Pages 785-792
Discrete Element Simulation of the Direct Shear Test of Sandy Soil....Pages 793-800
Micromechanical Simulation of Fines Content Effect of Soils Using the Discrete Element Method....Pages 801-810
Simulation of Sand–Tire Mixture by Discrete Element Method....Pages 811-820
Effect of Different Temperatures and Pore Pressures on Geomechanical Properties of Pore-Filling Type of Methane Hydrate Soils Based on the DEM Simulations....Pages 821-826
Discrete Element Analysis of the Fabric Evolution of Granular Soils During Cyclic Loading....Pages 827-835
DEM Simulation of Dynamic Compaction with Different Tamping Energy and Calibrated Damping Parameters....Pages 837-844
Front Matter....Pages 845-851
Discrete Simulation of Fracturing and Failure of Rock Samples....Pages 853-853
A New Rock Slicing Algorithm with Reduced Data Structure for Discrete Element Method Analyses for Rock Mechanics....Pages 855-862
Meso-Structure Parameters of Discrete Element Method of Sand Pebble Surrounding Rock Particles in Different Dense Degrees....Pages 863-870
Dimensions and Brittleness Effect on the Size of Process Zone in Rock-like Material Characterized by Bonded Particle Model....Pages 871-879
Numerical Simulation of Resonant Column Tests on Jointed Rocks Using DEM....Pages 881-887
3D Numerical Modeling of Strength in Fractured Rock Mass....Pages 889-896
DEM Modeling of Brittle Behavior of Rock Specimens with Two Infilled Flaws....Pages 897-905
Three-Dimensional Discrete Element Model for Tri-axial Tests of Graded Stones Under Different Gradations....Pages 907-915
3D Discrete Element Model for TBM Cutter Breaking Rock and Dynamic Loads Analysis....Pages 917-925
Calibration of Microscopic Mechanical Parameters of Granite Using Actual Distributions and Orthogonal Simulations....Pages 927-934
Front Matter....Pages 935-943
CFD-DEM Simulation of a Conical Spouted Bed Operating with High Density Particles....Pages 945-945
CFD-DEM Study the Effect of Carrier-Drug Mass Ratio on the Aerosolisation Process in Original and Modified Dry Powder Inhalers....Pages 947-955
Front Matter....Pages 957-965
A Numerical Study of the Effect of Loading Profiles on Mixing/Segregation of Particles in the Truck Mixer via DEM....Pages 945-945
From Micro to Macro: A Comparative Study of DEM and FEM in Modelling Hopper Flow....Pages 967-975
Simulation of Multiphase Reactive Gas Transport Using Smoothed Particle Hydrodynamics....Pages 977-985
DEM-CFD Modelling of Electrostatic Phenomena in Fluidization....Pages 987-994
Numerical Simulation of Gas-Solid Flow in a Wurster Fluidized Bed....Pages 995-1003
CFD Simulation of Hydrodynamics of Three-Dimensional Circulating Fluidized Beds with EMMS Model....Pages 1005-1012
Investigation of Gas-Solid Flow Dynamics and Heat Transfer in Fluidized Beds by Using DEM-LES Coupling Approach....Pages 1013-1021
Front Matter....Pages 1023-1035
Numerical Study on Seismic Isolation Effect of Gravel Cushion....Pages 1037-1037
Interaction Between Floater and Sea Ice Simulated with Dilated Polyhedral DEM....Pages 1039-1045
Investigation into the Soil-Root Composites Using Distinct Element Method....Pages 1047-1054
Macro and Micro Structural Characteristics of Force Chains in Overlaying Strata Above Top Caving Mining Face....Pages 1055-1063
DEM Analysis of Small-Displacement Earth Pressure Against a Rigid Retaining Wall with the Wall Moving Towards Structured Sand....Pages 1065-1074
Front Matter....Pages 1075-1083
Numerical Investigation of Optical Sorting Using the Discrete Element Method....Pages 1085-1091
Dependence of Granular Materials Homogenization on Geometrical Aspects in Commonly Used Mixers via DEM....Pages 1093-1101
The Effect of Rotational Speed on Granular Dynamics and Homogenization in a Vertical Bladed Mixer....Pages 1103-1103
DEM Modelling of Silo Loads Asymmetry Induced by Eccentric Discharge....Pages 1105-1113
Concurrent Adaptive Mass-Conserving Comminution of Granular Materials Using Rigid Elements....Pages 1115-1122
Understanding Size Segregation in Tumbling Mills....Pages 1123-1131
Front Matter....Pages 1133-1141
Modeling Roughness Effect of Joint Using Rough-Joint Model....Pages 1143-1152
DEM in Analyses of Nuclear Pebble Bed Reactors....Pages 1153-1168
Modified Modeling of Self-twist Process of Multistage Cable Based on Discrete Element Method....Pages 1169-1169
DEM Analysis of Interaction Between Granular Materials and a Cutting Blade....Pages 1171-1182
DEM Simulation of Rubble Ice Accumulation in Front of Water Intake Area of Nuclear Power Plant....Pages 1183-1191
Optimizing Heavy Equipment for Handling Bulk Materials with Adams-EDEM Co-simulation....Pages 1193-1199
Front Matter....Pages 1201-1208
Nonlinear Dynamic Process of Soil Tillage Under Straw Mulching Model....Pages 1209-1217
Study of Connection Mechanics Model and Mechanical Properties of Corn Kernel Carpopodium Based on DEM....Pages 1219-1224
The DEM-Based Digital Design Platform for Agricultural Machinery—AgriDEM....Pages 1225-1225
Study on Screening Efficiency of Banana Vibrating Screen Based on 3D DEM Simulation....Pages 1227-1240
Determination and Analysis for Parameters of Shape, Size, Physical and Mechanical Properties of Soybean Grains....Pages 1241-1251
Investigation of the Shape, Dimensions and DEM Modeling Method of Maize Grains....Pages 1253-1263
Front Matter....Pages 1265-1275
Material Transport Study into a SAG Mill by DEM Impact on the Inclination of Lifter....Pages 1277-1286
Numerical Simulation of the Interaction between the Grousers of Tracked Vehicle and the Soil Using Discrete Element Method....Pages 1287-1295
Discharging Trajectory of the Bucket Wheel Stacker-Reclaimer Based on DEM....Pages 1297-1297
DEM Analysis of Ballast Breakage Under Train Loads and Its Effect on Mechanical Behaviour of Railway Track....Pages 1299-1305
Simplified Multi-sphere Model-Based DEM Simulation of Particle Behavior in Hopper During Ship Loading for Dust Control....Pages 1307-1314
Front Matter....Pages 1315-1322
GPU DEM Simulations and Experimental Studies of Ball Milling Process for Various Particle Shapes....Pages 1323-1333
Computing Framework of Large-Scale Dilated Polyhedral DEM Particles Simulation Based on GPU....Pages 1335-1342
Front Matter....Pages 1343-1343
Computing with Non-convex Polyhedra on the GPU....Pages 1345-1352
Industrial Scale Particle Simulations on the GPU Using the Blaze-DEM Code....Pages 1353-1360
Simulation of Heat Transfer in Granular Systems with DEM on GPUs....Pages 1361-1369
Analysis on Motion Behavior of Spherical Shell in a Periodical Shear Flow Based on CUDA Parallel Computing Technique....Pages 1343-1343
Front Matter....Pages 1371-1377
Photoelastic Experiments on Force Chain Evolution in Granular Materials under Bilateral Flowing Conditions....Pages 1379-1388
The Design and Development of the Granular Material Photoelastic Device with Multiway Loading....Pages 1389-1397
Determination of Micro-parameters in DEM Through the Whole Surface Deformation Measurement in the Tri-axial Test....Pages 1399-1407
Identification and Analysis of Force Chain Structures in Photoelastic Experiments....Pages 1409-1409
Study of Shear Behavior of Homogeneous and Heterogeneous Granular Materials by Experimentation and Numerical Simulation of Triaxial Test....Pages 1411-1417
....Pages 1419-1427