Powders and Grains (2005) - Garcia-Rojo, Herrmann and McNamara (eds) O 2005 Taylor & Francis Group, London, ISBN 0 4 15 38348 X

Table of Contents

Preface

VOLUME I

Part 1: Granular solids

1.1 Packing geometly

The full canonical ensemble of a granular system S.E Edwards

Free volume distributions inside a bi-dimensional granular medium Fda Cruz, F Lechenault, 0. Dauchot & E. Bertin

Superfine powders of silica studied with spin-echo small-angle neutron scattering R.A. Andersson, I.M. de Schepper & WG. Bouwman

Studies of particle packings in mixtures of pharmaceutical excipients M. Dutt, B. Hancock, C. Bentham & I Elliott

Microscopic characterization of Dutch organic clays XH. Cheng

Ordered packing induced by simultaneous shear and compaction B. Hancock, M. Dutt, C. Bentham & I Elliott

Granular materials with even circuits: ball-bearings and dry quicksand N Rivier

The geometry and the number of contacts of monodisperse sphere packs using X-ray tomography M. Saadaqar; A. Kabla, T 1 Senden & T Aste

The herarchical properties of contact networks in granular packings Z Aste & T J Senden

A quick method to produce random dense arrangements of particles K. Bagi

Packing regimes in randomly deposited granular beds I. Bmtberg, F Radjai' & A. Hansen

Granular packings assembled by rain deposition: an experimental and numerical study S. Emam, I-N. Roux, I Canou, A. Corfdir & I -C. Dupla

Comparison of radon diffusion in the granular phosphate and in the corresponding powder EZ. Boujrhal, R. Cherkaoui El Moursli, A. Chouak, G. Calas, N. Menguy & G. Morin

Particle percolation through a porous medium L. Oger & l? Lomink

XXI

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1.2 Force transmission and force equilibrium

Contact forces and stress induced anisotropy T.S. Majmudar & R.l? Behringer

Photoelastic investigation of localization phenomena in granular materials D. Lesniewska & M. Sklodowski

Observations and simulation of force transmission in deformed conglomerates (Jiu-Jiu Fon, Taiwan) A. Taboada, K. l Chang & 1 Malavieille

Reproducible numerical soil properties and influence of packing geometries on structural behavior M. Pohl, M. Pulsfort & B. Walz

Response of a hexagonal granular packing under a localized overload: effects of pressure S. Ostojic & D. Panja

Elasticity of sphere packings: pressure and initial state dependence I. Agnolin & 1-N Roux

Stress and fabric for polydisperse, frictionless, dense 2D granular media M. Madadi, S.M. Peyghoon & S. Luding

Structural dependency on force propagation through particle packings L. E. Silbert

Evolution of the contact network during tilting cycles of a granular pile under gravity S. DeboeuJ 1 -E Vilotte, A. Mangeney, L. Staron & 0. Dauchot

Indetermination in the numerical simulation of granular systems 11 Moreau

1.3 Micromechanics and macroscopic behavior

Scaling in granular materials M.R. Kuhn

Failure in granular media: a discrete analysis 123 L. Sibille, I? K Donze, F Dawe & F Nicot

A general micromorphic theory of kinematics and stress in granular media 129 1D. Goddard

A continuum-like discrete description of granular media 135 F Froiio & I. Vardoulakis

A micromechanical constitutive law resulting from energy dissipation by friction 141 E. Frossard

Some micro-mechanical considerations for a new macro-mechanical model for the flow of granular materials 147 D. Harris, M.1 Jiang & H.-S. Yu

A variable linking microscopic to macroscopic granular mechanics 151 M.l Jiang, H.S. Yu & D. Harris

A theory on the stress-induced anisotropy in granular assemblies 155 M. Satake

Macroscopic constitutive relation of granular materials predicted by global-local analysis 159 K. Kaneko, K. Kumagai, S. Tsutsumi, T Zshii & I: Kishino

Macroscopic constitutive response of 3D granular assemblies under rotation of principal stress axes 165 S. Tsutsumi, M. Toyosada, K. Hashiguchi, K. Kaneko & I: Kishino

Continuum modelling of systems of disks in quasi-static conditions: inclusion of fluctuations I. Agnolin, 1 T. Jenkins & L. La Ragione

The effect of contact plasticity on the elasticity, fracture and yielding of a particulate assembly C.L. Martin & D. Bouvard

Crossover from hyperbolic-like to elliptic-like granular response C. Goldenberg & I. Goldhirsch

1.4 Quasistatic shear

Optical analysis of stress and strain in shear zones H. G.B. Allersma

Granulence E Radjai' & S. Rowr

Diffusion, transients and non-affine deformations for granular Couette shear flow B.C. Utter & R.P Behringer

Defects and mobility properties in a dense granular material under cyclic shear G. Marty & 0. Dauchot

'Shearing of a confined granular layer: compaction under long alternate driving, and quasi-elastic behavior C. Coste

Macroscopic friction response of rotational and non-rotational lattice solid gouge models in2D and3D S. Latham, S. Abe & P Mora

Shear strength properties of a thin granular interface G. Saussine, B Radjai; B Dubois, C. Cholet & PE. Gautier

Computer simulation of three dimensional shearing of granular materials: formation of shear bands S. Fazekas, 1 Torok, 1 Kertisz & D.E. Wo'olf

Shear band formation as a variational problem I: Ungel; D.E. WOK 1 Torok & 1 Kertesz

1.5 Biaxial and trimial tests

On the elastic response of granular media C. Thornton & L. Zhang

Numerical investigation of the Mohr-Coulomb parameters in a biaxial compression I-I: Delenne & M.S. El YoussouJi

blicro-macro relationships from DEM simulated element and in-situ tests E Calvetti & R. Nova

Strength, dilatancy, energy and dissipation in quasi-static deformation of granular materials ME! Kmyt & L. Rothenburg

Shear behavior of glass beads using DEM I:G. Sitharam, 1 s . Vinod & L. Rothenburg

The nature of quasistatic deformation in granular materials I-h! Roux

Characteristics of granular media at the 'critical state' L. Zhang & C. Thornton

VII

Discrete analysis of cavity expansion test N.H. Vu, D. Rangeard, S. Masson & I Martinez

General incremental behavior of idealized granular media Y Kishino & C. Zou

Ultrasonic experiment coupled with triaxial test for micro-seismicity detection in granular media F Adjemian, l? Evesque & X. Jia

Vibro-viscosity and granular temperature of cylindrical grain skeletons - experiments G. Huber & H. Wienbroer

Hysteresis and creep in powders and grains C.T. David, R. Garcia-Rojo, H. l Herrmann & S. Luding

The stress-strain curve of cyclic loading: microscopic, analytical results S. McNamara, R. Garcia-Rojo & H.1 Herrmann

Development of a mixed boundary environment for axi-symmetric DEM analyses L. Cui & C. O'Sullivan

1.6 Sound transmission and conduction

Acoustic measurements of anisotropic elasticity in glass bead packings under uniaxial stress Y Khidas & X. Jia

Sound wave velocities in dry and lubricated granular packings: numerical simulations and experiments I. Agnolin, I -N. Roux, l? Massaad, X. Jia & l? Mills

Sound propagation in dense, frictional granular materials 0 . Mouraille & S. Luding

Electrical properties of granular matter: from "Branly effect" to intermittency E. Falcon & B. Castaing

A conduction-based statistic for description of orientation in anisotropic packings 1D. Picka & T.D. Stewart

1.7 Compaction

Granular compaction: from the local motion to the global behavior l? Ribiere, l? Richard, R. Delannay & D. Bideau

Compaction and mobility in randomly agitated granular assemblies G. Caballero, 1 Lanuza & E. Climent

Grain mobility and hexagonal domains formation in 2D granular compaction G. Lumay & N. Vandewulle

A lattice model for BNE and RBNE F Ludwig & N. Vandewulle

1.8 Jamming

Stress fluctuations and the solidlfluid transition in a sheared granular bed F Dalton, A. Petri & G. Pontuale

Characterization of a freezinglmelting transition in a vibrated and sheared granular medium K.E. Daniels & R.l? Behringer

Dense granular flows: friction and jamming F da Cruz, M. Prochnow, 1-N. Roux & F Chevoir

VIII

Transient rigid clusters in dense granular flows P Mills, FG. Rognon & R Chevoir

The packing of fine and cohesive irregular particles A. Castellanos, J M . Valverde & M.A.S. Quintanilla

Experimental response function of a 2D granular media around the jamming transition E. Kolb, 1 Lanuza & E. Clkment

Force response as a probe of the jamming transition KG. Ellenbroek, E. Somfai, U! van Saarloos & M. van Hecke

Mean field theory of dense granular media A. Coniglio, A. Fierro, M. Nicodemi, M.F Ciamarra & M. Tarzia

Reversibility and effective temperature in jammed granular matter C. Song, P Wang, 1 BrujiC & H.A. Makse

Effective temperature and jamming transition in sheared granular assemblies BQ. Potiguar & H.A. Makse

Elastic energy, fluctuations and temperature for granular materials L. Kondic & R.F Behringer

Part 2: Continuum modeling

2.1 Continuum modeling - theoly

Features of soil behavior and their mathematical modeling D. Kolymbas

Vibro-viscosity and granular temperature of cylindrical grain skeletons theory G. Gudehus

Discrete incremental non-linearity in granular materials B Nicot & R Dawe

Analysis of deformation and localization in thermomicromechanica1 Cosserat models of granular media A. Tordesillas & S.D.C. Walsh

Soils and rocks in terms of anisotropic reduced Cosserat continuum: peculiarities of wave propagation E.B Grekova & G.C. Herman

Equilibrium shapes of ellipsoidal soil asteroids I. Sharma, J Z Jenkins & J A . Burns

A unified theory of granular statics rM. Jiang & M. Liu

2.2 Continuum modeling - numerics

Predictions of stress dip in granular heaps using multi-slip formulation i 0. A1 Hattamleh, B. Muhunthan & H.M. Zbib

FE-simulations of direct and simple shearing within a polar hypoplasticity J Tejchman & E. Bauer

Influence of a characteristic length on shear zone formation in granular bodies within a polar, non-local and gradient hypoplasticity 1 Tejchman

Differences between the results of discrete element modeling and continuum modeling S. van Baars Role of material-property fluctuations on the failure in the numerical biaxial tests K. Hamadi, A. Modaressi, P Evesque & F Dawe

A viscous model for free surface granular flow in silos C. Leppert & D. Dinkler

Computer modeling of granular flow Z. Wickowski

Modeling of granular flow in silos based on finite element method ANSYS vs. SILO G.A. Rombach, F Ayuga, F Neuman & E. Gallego Vazquez

Simulation of silo discharge: influence of initial pore distribution 1-U Bohrnsen, H. Antes & M. Ostendorf

Numerical simulation of hydrodynamic equations for granular media C. SalueAa & 1A. Carrillo

Part 3: Cohesion

3.1 Cohesive properties

Behavior of adhesion between loaded fine particles with controlled surface additives M.A.S. Quintanilla, A. Castellanos & 1 M . Valverde

From grains to powders: from single particle contact mechanics measurements to bulk powder properties M. Kappl, L. Heim, H.-1 Butt, S. Luding, R. Tykhoniuk & 1 Tomas

Adhesion, inelastic contact behavior and simulation of shear dynamics of ultrafine cohesive powder R. Tykhoniuk, 1 Tomas, S. Luding, M. Kappl, L. Heim & H.-1 Butt

499 1 Adhesive interactions of viscoelastic spheres N. R Brilliantov & L Poschel

Frictional contact and cohesion laws for Casagrande's shear test on granular materials by 3D DEM - comparison with experiments V. Richefeu, M.S. El Youssoufi, R. Peyroux & C.Bohatier

Molecular Dynamics modeling of the adhesive interaction between fine particles FA. Gilabert, A.M. Krivtsov &A. Castellanos

Effect of contact stiffness on the fluidization behavior of cohesive powders R. Moreno, B.H. Xu & M. Ghadiri

3.2 Cohesive flow

Compaction of cohesive powders D.E. Wolf; 7: Unger, D. Kadau & L. Brendel

Microscopic and macroscopic compaction of cohesive powders M. Morgeneyer, M. Rock, 1 Schwedes, K. Johnson, D. Kadau, D.E. Wolf& L. Heim

Structural changes and plasticity in loose cohesive granular packings FA. Gilabert, I-N. Roux & A. Castellanos

Effect of process variables and physico-chemical properties on the granulation kinetics in high shear mixer M. Benali, M. Hemati, V. Gerbaud & D. Steinmetz

Deformation characteristics of an agglomerate imbedded in a bed of particles subjected to shearing: size effect A. Hassanpoul; S.1 Antony & M. Ghadiri

Influence of forming pressure of compacted powders on densification of sintered body C. Miclea, C. Tanasoiu, C.F Miclea, FN. Sima, M. Cioangher &A. Gheorghiu

Effect of PbO on the properties of ferrite compound Ni0.36Zn0.64Fe204 N. Rezlescu & E. Rezlescu

Part 4: Degradation and instability of geomaterials

4.1 Degradation and geomaterials

Weathering of soft rocks: continuum and discrete approaches F Calvetti, R. Nova & R. Castellanza

On modeling rock slope retreat by the discrete element method I? Calvetti, R. Nova & S. Utili

Discrete creep model for long-term behavior of rockfill dams T-H. Tran, I? Dedecker & B. Cambou

DEM modeling of natural stones assembly confined in wire mesh D. Bertrand, Ph. Gotteland & N. Nicot

DEM modeling of soil structures reinforced with geosynthetics B. Chareyre & P Villard

Discrete simulation of the shear response of cohesive granular interfaces F Farooghi, S. Masson & 1 Martinez

Investigation of the asymptotic states of granular materials using a discrete model of anisotropic particles A.A. Peiia, H.1 Herrmann, A. Lizcano & FAlonso-Marroquin

Micromechanics of shear bands in granular media I. Vardoulakis & F Alonso-Marroquin

Sliding and localization in a biaxial test of granular material R. Garcia-Rojo, S. McNamara, A.A. Penla & H.l Herrmann

4.2 Instability and geomaterials

Fluidization and liquefaction of geomaterials in fast slope movements 711 M. Pastol; M.I. Herreros, LA. Fernandez Merodo, E. Gonzalez, P Mira, B. Haddad & M. Quecedo

Fluidization and stability of granular media in artesian flow conditions I. Vardoulakis & S. Alevizos

Sand production: A microscopically motivated multi-phase model H. Steeb, S. Diebels & I. Vardoulakis

Numerical determination of particles mass flow rate through orifices in the case of oil well production Y Peysson, G. Ferrel; 1 F Nauroy, E. Bemer & T Yalamas

An attempt to model compaction instabilities of stabilized residues R. Nova & M. Arroyo

Author Index

- -

An analysis of mixing in rotary drums by means of discrete element method and penetration model G. Saage, M. Kwapinska & E. Tsotsas

Flow measurement in rotational flow of mixed-size granular systems 1E. Maneval, B.E. Smith, A. Caprihan & E. Fukushima

Segregation transients in a tumbler flow W Losert, M. Newey, N Taberlet & P Richard

MRI measurement of size segregation in a rotating drum 7: Kawaguchi, K. Tsutsumi & I: Tsuji

Axial segregation of dry grains in a rotating drum: a numerical study N. Taberlet, P Richard & H! Losert

5.3 Channel and chuteflow

How do grains flow: towards a simple rheology for dense granular flows 0 . Pouliquen, C. Cassar, I: Forterre, P Jop & M. Nicolas

Experimental study of 2D granular dense chute flows W Bi, R. Delannay, P Richard &A. Valance

How sidewalls influence granular flows N. Taberlet, P Richard, R. Delannay & M. I: Louge

Effects of end-wall friction on granular flow in rotating 2D and 3D cylinders A. Caprihan, B.E. Smith, 1 E . Maneval, K.M. Hill & E. Fukushima

Influence of the lateral friction on the surface flow: a 3D numerical approach M. Renod D. Bonamy, P Alart & F Dubois

Volume fraction profile in channeled granular flows down an erodible incline M. X Louge, A. Valance, N Taberlet, P Richard & R. Delannay

Multiple solutions of steady granular chute flows M.1 Woodhouse & A.1 Hogg

5.4 Hoppers and silos

Stress distributions of steady and unsteady state hopper flows H.P Zhu & A.B. Yu

Application of digital particle image velocimetry in registrations of central and eccentric granular material flows I. Sielamowicz, TA. Kowalewski & S. Blonski

Effect of entrained air and particle properties on fluctuating velocity of free falling particles from hopper K. Ogata & I: Tomita

Asymmetry-induced circulation in granular hopper flows 1 F Wambaugh & R.P Behringer

5.5 Flow around obstacles

Getting to the bottom and top of a granular medium M.B. Stone, 7:1 Scheidemantel, D.P Bernstein, R. Bury, M.D. Pelc. ZK. Tsui, K. Klein, K. Chen & P Schzfler

3D imaging of rod penetration through a granular pile M. Toiya & W Losert

XIV

Granular Vacua A.J. Hogg, J.M.N. L Gray & X. Cui

Diffusion, mobility and failure for a stirred granular system J. Geng & R.P Behringer

Dynamics of granular flow in a powder mixer B.EC. Laurent

Segregation of binary mixtures of particles in a bladed mixer ZC. Zhou, G.R. Chandratilleke, A.B. Yu & 1 Bridgwater

Part 6: Fluid and particles

6.1 Dunes, ripples, sediment transport

Transformation of barchans into parabolic dunes under the influence of vegetation 0. Durcin, R Schatz, H.I Herrmann & H. Tsoar

Flow separation in the lee of transverse dunes R Schatz & H.1 Herrmann

Barchan dunes on Mars and on Earth E.J.R. Parteli, k! Schatz & H.1 Herrmann

Dust and sand transport on Mars 3.11 Merrison, H.P Gunnlaugsson, ZL. Jacobsen, A.E. Jensen, K. Kinch, J? Nsrnberg & K.R. Rasmussen

Dynamics of particles in aeolian saltation KR. Rasmussen & M. Swensen

The granulometric evolution of aeolian sands - an empirical and statistical approach H. Besler

Grain-size sorting and slope failure in experimental subaqueous grain flows M.G. Kleinhans & Th. K 1 van Asch

Erosion threshold and ripple dynamics at a granular bed surface sheared by a continuous laminar flow T. Loiseleux, D. Doppler, I! Gondret & M. Rabaud

Sandlwater interface stability underneath a rotating fluid flow H. Caps & N. Vandewalle

Three-dimensional sand patterns under shear flow ; K Langlois & A. Valance

; Dynamic and instability of submarine avalanches : E Malloggi, 1 Lanuza, B. Andreotti & E. Climent

; Experiments on gravity-driven particle flows in a turbulent stream ; I Bchm, C. Ancey, I? Frey, M. Jodeau & I -L . Reboud !,

; A simple model of sediment transport E Osanloo, S. McNamam & H.1 Herrmann

i h o dimensional simulation of dust advection-diffusion i Z.A. Fard & H.K. Zavareh i t 6.2 Fluidized beds, conveying, bubbles k !. Structure and stability of gas-fluidized beds of fine particles 1M. Valverde, A. Castellanos & M.A.S. Quintanilla

Autocorrelation spectra of air-fluidized granular system by the NMR spin echo 1 Stepiinik, S. LasiE, A. MohoriE, I. Seria & G. PlaniniiC

The separation of fine binary granular mixtures subjected to differential gravity and to vertical vibration in air A.7: Catherall, M.R. Swift & l?1 King

The effects of fluid-driven convection on the separation of binary mixtures R.1 Milburn, M.R. Swift & l?1 King

Aerated flow of fine cohesive powders in a Peschl shear cell D. Barletta, G. Donsi, G. Ferrari & M. Poletto

Platelet aggregation via granular flow simulations X.S. Yang

Onset of collapse and growth of cavity region in a granular material due to viscous flow 0 . Sano & I: Kaneko

Dense bubble flow in a silo: a particular granular material I: Bertho, Ch. Becco, H. Caps & N. Vandewalle

6.3 Suspensions

Settling of particles in liquids K.1 Dong, R.l? Zou, R. I: Yang & A.B. Yu

Pattern formation by injection of air in a non-Brownian suspension C. Chevalier; A. Lindner & E. Clkment

A new recycling system of high water content mud: production of high quality soil from construction sludge H. Takahashi, M. Mori & K. Kumakura

Post-fluidization depositional processes of hyperconcentrated sand-water mixtures Amiruddin, 1 Mivamoto & H. Sekiguchi

6.4 Saturated granular matter

Imprinting memory into paste to control crack patterns in the drying process A. Nakahara & I: Matsuo

Density changes of the pore water of saturated clay M. Kulzer & G. Gudehus

A study on the simple expression method for generating of excess pore pressure in DEM 7: Takahara, A. Kikumoto & 7: Yamakami

Effects of interparticle friction on the undrained response of granular media R. Olivera Bonilla & L. Rothenburg

Part 7: Granular gases

7.1 Microgravity

Granular gas in an experimental accessible setup H. Hayakawa & A . Kawarada

Dilute dissipative granular gas in Knudsen regime and in micro-gravity: evidence for a "velostat" as a boundary condition l? Evesque, I: Garrabos, C. Lecoutre, F Palencia & D. Beysens

XVI

Granular dissipative gas in weightlessness: the ultimate case of very low densities and how to measure accurately restitution coefficient and its dependence on speed I: Garrabos, D. Beysens, E Palencia, C . Lecoutre & P Evesque

Long-range interactions in ring-shaped particle aggregates M.-K. Muller & S. Luding

Two-dimensional turbulence in granular gases M. Isobe

7.2 Kinetic theory

A model of dissipative granular gas: the limit case of complete inelasticity of grain-grain collision P Evesque

Segregation in a sheared binary mixture of nearly elastic, smooth disks under gravity D.K. Yoon, B.o. Arnarson & 17: Jenkins

Non-Newtonian granular fluids: simulation and theory M. Alam & S. Luding

Collisional flows of identical, smooth, nearly elastic spheres in a vertical chute S.L. Das & 1 T Jenkins

7.3 Vibrated granular media

The granular Leidenfrost effect I? Eshuis, K. van der Weele, D. van der Meer & D. Lohse

Motion in a vertically vibrated granular layer JM. Pastor, A. Garcimarrin, I. Zuriguel & D. Maza

Experimental study of vibrated beds with and without air fluidization A. de Ryck & D. Marino

Granular matter applications in agriculture E. fi~skens, E. Dintwa. 1 Loodts, P Van Liedekerke, M. Van Zeebroeck, P Verboven & H. Ramon

Study of vibrated granular packings by X-ray tomography E. Roueche & G. Thomas, 1 M . Missiaen & 1 L . Gelet

Dependence of granular arrangements under vibrations on the dimensions of cylindrical containers E. Roueche, G. Thomas, 1 M . Missiaen & 1 L . Gelet

Granular surface waves in a vibratory conveyor A. Gotzendorfer, C.A. Kruelle & I. Rehberg

Reversal of a granular flow on a vibratory conveyor C.A. Kruelle, M. Rouijaa, A. Gotzendorjer, I. Rehberg, R. Grochowski, P Walzel, H. El hor & S.1 Linz

Model for transport of granular matter on vibratory conveyors H. El hor, S.l Linz, R. Grochowski, P Walzel, C.A. Kruelle, M. Roui/aa. A. Gobendorjer & I. Rehberg

I

1 A cellular automation for granular media under vibrations M.P Sbenz & 1 D. Munloz

On the validity of Gallavotti-Cohen fluctuation relation in granular gases A. Puglisi, A. Barrat, E. Trizac, P Visco & E van Wijland

XVII

7.4 Impact and splash functions

Experimental study of the collision process between an incident bead and a 3D granular packing D. Beladjine, M. Ammi, L. Oger & A. Valance

Impact on soft sand: Void collapse and jet formation R. Bergmann, R. Mikkelsen, C. Zeilslra, D. van der Meel; M. Versluis, K. van der Weele, M. van der HoeJ H. Kuipers & D. Lohse

Modeling of impact cratering in granular media L.S. Tsimring & D. VoljSon

Dynamic interaction of debris flows on retaining structures F Federico, A. Musso & A . Amoruso

A numerical study of the collapse and spreading of a granular mass L. Staron & E.1 Hinch

Part 8: Particle properties

8.1 Particle interactions

Contact and quasi-static impact of a dissipationless mechanical model H. Kuninaka & H. Hayakawa

Characterization of the contact between particles by Atomic Force Microscopy (AFM) M. George & 0.2: Goddard

Modeling particle collisions in DEM simulations with an improved integral non-linear model A. Di Renzo & FP Di Maio

Rolling friction and bistability of rolling motion 2: Poschel, 2: Schwagel; N. K Brillianlov &A. Zaikin

A granular collider: particle-substrate model and a numerical experiment R.P Behringer & M. Dutt

Electrification of pharmaceutical powders due to a single impact with a metal plate 1257 H. Watanabe, A. Samimi, ZL. Ding, M. Ghadiri, I: Matsuyarna & K.G. Pitt

Fine Sr and Ba hexaferrite powders used in magnetic recording prepared by self combustion 1263 N. Rezlescu, PD. Popa, E. Rezlescu & C. Doro$ei

8.2 Particle size and polydispersity

Influence of large particles on the behavior of granular media K.1 Chang, A. Taboada & E Radjai'

Relationship between particle size and normal force 1 Torok. S. Fazekas, I: Unger & D.E. Wolf

Discrete element modeling of the densification of powder composites C.L. Martin & D. Bouvard

Effects of size polydispersity on pharmaceutical particle packings C. Bentham, M. Dutt, B. Hancock & 1 Elliott

Angle of repose for two-dimensional particle aggregates from particle-size and -shape S.A.M. El Shourbagy & H.-G. Matuttis

The experimental study on a period of granular stratification pattern M. Shimokawa, S. Ohta &A. Nakahara

Characterization of granular materials intervening in cement production A.M. Vidales, I. Ippolito, O.A. Benegas, O.C. Nocera, FAguirre & M.R. Baudino

Effects of matter properties on particulate segregation in a vibrating granular bed C.H. Tai, S.S. Hsiau & M.D. Li

A hierarchical model for simulating very polydisperse granular media M. Wackenhut, S. McNamara & H.1 Herrmann

8.3 Particle shape

Effect of irregular grain shape on quasi-static shear behavior of granular assembly T. Matsushima

The influence of particle shape on the stress-strain and creep response of a fine silica sand E.T. Bowman & K. Soga

Ballast forming crushed rock: size, shape and shear behavior A. Marnche, 1 Riss, C. Cholet & PE. Gautier

The importance of accurately capturing particle geometry in DEM simulations C.OISullivan & 1D. Bray

Influence of particle shape on rotations and rolling movements in granular media C. Nouguier-Lehon & E. Frossard

Influence of angularity on dense granular flows L. Tocquer, S. Lavergne, l? Chevoir & Y Descantes

Shape segregation in granular materials: a game of Go where shape beats size and buoyancy H.-G. Matuttis, S. Omata & 0 . Sano

Dynamics of a vibrated dimer S. Dorbolo, N Vandewalle, D. Volfson, L. Tsimring & A . Kudrolli

Numerical and experimental investigation of alignment and segregation of vibrated granular media composed of rods and spheres M. Ramaioli, L. Pournin & Th. Liebling

Pebble packing and wearing simulations Q. Sun

Approaching real grain shape in the simulation of sandstone using DEM L. Li & R.M. Holt

A generalization of distinct element method to tridimensional particles with complex shapes L. Pournin & T.M. Liebling

Collisions between particles of complex shape B. Muth, P Eberhard & S. Luding

8.4 Crushable grains and Fracture

Relating particle characteristics to macro behavior of DEM crushable material I: Nakata, M.D. Bolton & Y P Cheng

Grain crushing and critical states observed in DEM simulations ZF! Cheng, M.D. Bolton & I: Nakata

Effect of particle crushability on critical state line of granular material S. Kato, S. Nonami & T. Sakakibara

Compaction bands as observed in DEM simulations G. Marketos & M. D. Bolton

XIX

Modeling grain crushing in rockfill material using discrete 2D model R. Deluzarche & B. Cambou

The application of mechanoluminescence for characterization of inelastic deformation and fracture of quartz particles S. Aman & 1 Tomas

Effect of angularity and crushability of particles on shear behavior of a volcanic soil M. Hyodo, N. Yoshimoto, I: Nakata & FV Kim

Study of the durability of the pegmatite grains material in oedometric test B. Melbouci & 1 C . Roth

Analysis of the milling behavior of organic powders C. C. Kwan, S. Gittins, W Yang, ZQ. Chen, ZL. Ding, M. Ghadiri, H. Mio & F Saito

Numerical simulation of a rock crusher 7: Sakakibara, M. Amano, S. Kanou & 7: Nagata

Modeling of localization of deformation in quasi-brittle materials with a continuum and discrete model 1 Bobinski, 1 Kozicki & 1 Tejchman

Sequential modeling of failure behavior in cohesive brittle materials K. Grass, A. Blumen, M.O. Steinhauser & K. Thoma

Central and oblique impacts of spheres M. Khanal, W Schubert & 1 Tomas

Fracture analysis of concrete column under high speed load by the 3-D distinct element method D. Harab, S. Katsub & I: Kajita

Author Index