M.J. Adams: Unilever Research, U. K.
                    T. Aizawa: University of Tokyo, JAPAN
                    H.G.B. Allersma: Delft University of Technology, NETHERLANDS
                    Ch. Ancey: CEMAGREF, FRANCE
                    J.-P. Bardet: University of Southern California, U.S.A.
                    R.P. Behringer: Duke University, U.S.A.
                    J. Biarez: Paris, FRANCE
                    D. Bideau: Universit;
de Rennes I, FRANCE
                    D. Bouvard: Institut National Polytechnique de Grenoble, FRANCE
                    B. Cambou: ツole Centrale de Lyon, FRANCE
                    C.S. Campbell: University of Southern California, U.S.A.
                    C.S. Chang: University of Massachusetts, U.S.A.
                    F. Darve: Institut National Polytechnique de Grenoble, FRANCE
                    P. Evesque: ツole Centrale de Paris, FRANCE
                    S. Fauve: ツole Normale Sup屍ieure de Paris, FRANCE
                    M. Ghadiri: University of Leeds, U. K.
                    J.D. Goddard: University of California at San Diego, U.S.A.
                    R. Gourv市: Universit;
Blaise Pascal de Clermont-Ferrand, FRANCE
                    J. Hidaka: Doshisya University, JAPAN
                    Y. Kishino: Tohoku University, JAPAN
                    L. Laloui: ツole Polytechnique F仕屍ale de Lausanne, SUISSE
                    J. Lanier: Universit;
Joseph Fourier de Grenoble, FRANCE
                    M. P. Luong: ツole Polytechnique, Palaiseau, FRANCE
                    H. Matsuoka: Nagoya Institute of Technology, JAPAN
                    A. Mehta: Bose National Cennter for Basic Sciences, INDIA
                    S.R. Nagel: University of Chicago, U.S.A.
                    M. Oda: Saitama University, JAPAN
                    L. Oger: Universit;
de Rennes I, FRANCE
                    M. Satake: Sendai, JAPAN
                    H. Sekiguchi: Kyoto University, JAPAN
                    C. Thornton: Aston University, U. K.
                    Y. Tsuji: Osaka University, JAPAN
                    O.R. Walton: Grainflow Dynamics, U.S.A.
                    L.V. Woodcock: University of Bradford, U. K.
 
 

Following in the spirit of past conferences at Clermond-Ferrand, France in 1989; Birmingham, England in 1993; Durham, USA in 1997, the purpose of this first meeting in the new century is to communicate continuing developments in research on the micromechanics of granular media.

Understanding the behavior of granular media in terms of micromechanics is of fundamental importance in a number of areas of science and technology - the complexity of the mechanics requires interdisciplinary discussions involving applied mathematicians, statistical physicists, geologists, and chemical/civil/mechanical/agricultural engineers. Practical goals of this activity are improvements in industrial production, process performance, construction design, and so on.

The topics discussed in this meeting range from quasi-static problems to dynamic problems, and are divided into 15 groups: packing geometry, cohesion/cracking, measurement system, wave propagation, quasi-static modeling, quasi-static behavior, submerged behavior, localized deformation, externally disturbed behavior, shear flow, vertical flow, surface flow, vibrated flow, mixed flow and viscous flow/crushing. Each group contains theoretical, experimental and computational approaches by researchers with different backgrounds; such combination will provide new insights not only into the respective sub field but also into other relevant fields. I am convinced that this meeting will be of great benefit to every participant.

I am grateful for financial support provided by the Japan Society for the Promotion of Science, the Japanese Geotechnical Society, Hosokawa Powder Technology Foundation and the Kajima Foundation. I am also grateful to the Executive Committee and the Scientific Committee for their kind help in organizing this meeting. Finally, I would like to thank all the authors for their contibution to the Proceedings and wish all of you an enjoyable and stimulating meeting.
 
 

Yuji Kishino
 
 

Sunday, May 20

1400-1800   Registration

1800 Welcome Reception and Buffet
 

Monday, May 21

0830 Announcements
 

SESSION 1- WAVE PROPAGATION

0835 X.Jia & P.Mills
            (Universit;
Paris VI & VII, France)
            Sound propagation in dense granular materials (invited lecture)

0915 E.Somfai, W.van Saarloos & J.-N.Roux
            (Universiteit Leiden, Netherlands)
            Wave propagation in force chains

0930 S.Sen, M.Manciu, F.S.Manciu & A.J.Hurd
            (State University of New York at Buffalo, USA)
            Impulse propagation in granular chains

0945 G.Gudehus, I.Loukachev & N.Pralle
            (University of Karlsruhe, Gremany)
            Inelastic behaviour of grain skeletons with propagation of plane shear waves

1000 F.Oka & B.Boutillier
            (Kyoto University, Japan)
            Analysis of wave propagation characteristics through saturated granular material
            by a gradient-viscoelastic model

1015 Discussion

1030 Coffee and Posters
 

SESSION 2- VERTICAL FLOW

1115 C.S.Chou, M.J.Li, J.Smid, J.T.Kuo & S.S.Hsiau
            (National Pingtung University of Science and Technology, Taiwan)
            Flow patterns and stresses on the wall in a moving granular bed with centric discharge

1130 J.F.Ferellec, J.Martinez, S.Masson & K.Iwashita
            (Institut National des Sciences Appliqu仔s, France)
            Influence of particle rolling resistance on silo flow in DEM simulations

1145 R.Rechtman, R.Peralta-Fabi & G.Caballero
            (UNAM, Mexico)
            Arching in silos and piles

1200 D.Petit, F.Pradel, G.Ferrer & Y.Meimon
            (Institut Fran溝is du P師role, France)
            Shape effect of grain in a granular flow

1215 Discussion

1230 Lunch
 

SESSION 3- MIXED FLOW

1400 S.Yuu
            (Kyushu Institute of Technology, Japan)
            Numerical simulation of gas-solid two-phase and powder flows (invited lecture)

1440 M.Y.Louge, H.Xu & J.T.Jenkins
            (Cornell University, USA)
            Studies of gas-particle interactions in a microgravity flow cell

1455 H.Hayakawa & H.Kuninaka
            (Kyoto University, Japan)
            Coefficient of restitution of elastic disks

1510 A.Castellanos, J.M.Valverde, M.A.S.Quintanilla & P.Mills
            (Universidad de Sevilla, Spain)
            The effect of particle aggregation on the collapse of gas-fluidized beds

1525 B.H.Xu, A.B.Yu & P.Zulli
            (The University of New South Wales, Australia)
            The effect of interparticle forces on powder fluidization behaviour

1540 Discussion

1555 Coffee and Posters
 

SESSION 4- SUBMERGED BEHAVIOR

1640 V.De Gennaro
            (CERMES, ENPC-LCPC, France)
            On the structural anisotropy of sands

1655 K.Iwashita & M.Oda
            (Saitama University, Japan)
            Numerical simulation of granular materials subjected to cyclic loading under constant volume
            by modified distinct element method

1710 J.Miyamoto & H.Sekiguchi
            (Kyoto University, Japan)
            Effect of wave loading history on the initiation and development of liquefaction in sand beds

1725 M.Miyata, T.Sugano, G.G.W.Mustoe, M.Nakagawa & T.Tanaka
            (Port and Harbour Research Institute, Japan)
            Study on the force support system within a rubble rock foundation using discrete element
            method

1740 Discussion

1830 Dinner

2000 Poster Session
 

Tuesday, May 22

0830 Announcements
 

SESSION 5- QUASI-STATIC MODELING

0835 S.Luding
            (Institute for Computer Applications 1, Germany)
            >From DEM simulations towards a continuum theory of granular matter (invited lecture)

0915 M.Satake
            (Tohoku Gakuin University, Japan)
            Stress and strain in granular materials

0930 P.Evesque
            (ツole Centrale de Paris, France)
            Modelling the micro-macro passage in the quasi-statics regime of granular matter

0945 Ph.Dubujet & B.Cambou
            (ツole Centrale de Lyon, France)
            Static anisotropy in granular materials

1000 K.Kaneko, Y.Kishino, T.Kyoya & K.Terada
            (Tohoku University, Japan)
            Numerical multi-scale modeling and analysis of granular media based on the homogenization
            theory

1015 Discussion

1030 Coffee and Posters
 

SESSION 6- VERTICAL / SURFACE FLOW

1115 A.Samadani & A.Kudrolli
            (Clark University, USA)
            Segregation and layering in the flow of wet granular matter

1130 W.Chen, K.Lu, Z.Jiang, M.Hou & L.Lam
            (Chinese Academy of Sciences, China)
            Electric-field induced retardation of granular flows in a pipe

1145 N.Mitarai & H.Nakanishi
            (Kyushu University, Japan)
            Instability of granular flow on rough inclined plane

1200 D.Bideau, I.Ippolito, M.A.Aguirre, A.Calvo & N.Nerone
            (Universit;
de Rennes I, France)
            Some experiments on granular surface flows

1215 Discussion

1230 Lunch
 

SESSION 7- VISCOUS FLOW AND CRUSHING

1400 D.J.Benson
            (University of California, USA)
            The simulation of powder processing with Eulerian finite element methods (invited lecture)

1440 T.Aizawa & T.Iwai
            (University of Tokyo, Japan)
            Effect of the powder characteristics on the Non-Newtonian flow of powder- binder compound
            in the metal powder injection molding

1455 N.Roussel, C.Lanos & Y.M四inge
            (Institut National des Sciences Appliqu仔s, France)
            Drainage condition of saturated granular media under shearing

1510 Y.Xu, W.Huang & G.Lian
            (China Agricultural University, China)
            On the normal viscous force between two colliding spheres with an interstitial power-law
            liquid

1525 W.X.Yuan, A.S.Burbidge, K.A.Fisher, P.A.Langston & D.I.Wilson
            (The University of Birmingham, UK)
            A microscale model of paste flow in piston-driven extrusion process

1540 Discussion

1555 Coffee and Posters
 

SESSION 8- PACKING GEOMETRY

1640 Y.F.Xu, H.Matsuoka & D.A.Sun
            (Nagoya Institute of Technology, Japan)
            Fractal model for grain-size distribution of soils

1655 L.Oger, P.Richard, J.P.Troadec & A.Gervois
            (Universit;
de Rennes I, France)
            Comparison between a 2D froth and a cut of 3D froth

1710 M.Nicolas, P.Duru & O.Pouliquen
            (Technop冤e de Ch液eau-Gombert, France)
            Compaction of a packing of hard spheres under horizontal shear

1725 T.Tsuchikura & M.Satake
            (Maebashi Institute of Technology, Japan)
            A consideration on the statistical analysis of particle packing using loop tensors

1740 Discussion

1830 Dinner

2000 Poster Session
 

Wednesday, May 23

0830 Announcements
 

SESSION 9- QUASI-STATIC BEHAVIOR

0835 C.Thornton & L.Zhang
            (Aston University, UK)
            A DEM comparison of different shear testing devices (invited lecture)

0915 L.Rothenburg & N.P.Kruyt
            (University of Waterloo, Canada)
            On limitations of the uniform strain assumption in micromechanics of granular materials

0930 J.T.Jenkins & L.LaRagione
            (Politecnico di Bari, Italy)
            Fluctuations and state variables for random arrays of identical disks

0945 Y.Kishino, H.Akaizawa & K.Kaneko
            (Tohoku University, Japan)
            On the plastic flow of granular materials

1000 K.Maeda, N.Kuwabara & H.Matsuoka
            (Nagoya Institute of Technology, Japan)
            Micromechanical analysis on formation process of microstructure in granular material during
            compression and shear

1015 Discussion

1030 Coffee and Posters
 

SESSION 10- SURFACE FLOW

1115 A.V.Orpe & D.V.Khakhar
            (Indian Institute of Technology-Bombay, India)
            Granular flow in quasi-2d rotating cylinders

1130 P.Schiffer, P.Tegzes, T.Vicsek, R.Albert & A.-L.Barab�si
            (Pennsylvania State University, USA)
            Repose angle studies of wet granular media

1145 A.Schinner, K.Kassner, H.-G.Mattutis, K.M.Aoki, T.Akiyama, J.Aoki & S.Takahashi
            (Otto-Von-Guericke University, Germany)
            History-dependent structure in granular piles
1200 Q.Sun & G.Wang
            (Tsinghua University, China)
            Discrete simulations of the impact process in aeolian saltation

1215 Discussion

1230 Lunch

1330 Excursion

1830 Dinner

2000 Video Session
 

Thursday, May 24

0830 Announcements
 

SESSION 11- LOCALIZED DEFORMATION

0835 I.Vardoulakis
            (National Technical University of Athens, Greece)
            Thermo-poro-mechanical analysis of rapid fault deformation (invited lecture)

0915 F.Darve & F.Laouafa
            (Universit;
J. Fourier, France)
            Mechanical instabilities in granular media

0930 M.R.Kuhn
            (University of Portland, USA)
            Strain gradient dependence and shear band formation in granular materials

0945 K.N歟el & G.Gudehus
            (University of Karlsruhe, Germany)
            Evolution of localized shearing; dilation and polarization in grain skeletons

1000 F.Calvetti, C.di Prisco & R.Nova
            (Milan University of Technology, Italy)
            Modelling of pipeline-landslide interaction

1015 Discussion

1015 Coffee and Posters
 

SESSION 12- VIBRATED FLOW

1115 G.Metcalfe, S.G.K.Tennakoon, L.Kondic, D.G.Schaeffer & R.P.Behringer
            (CSIRO, Australia)
            Solid-liquid transitions of horizontally shaken dry granular materials

1130 C.Lesaffre, V.Mineau, D.Picart & H.Van Damme
            (CEA Le Ripault, France)
            Densification under vibration of fully saturated granular packings

1145 A.Ugawa, K.Suzuki & O.Sano
            (Tokyo University of Agriculture and Technology, Japan)
            Pattern formation of thin granular layer due to vertical vibration

1200 J.L.Turner, M.T.Lusk & M.Nakagawa
            (Colorado School of Mines, USA)
            Grain boundary motion in particulate material

1215 Discussion

1230 Lunch
 

SESSION 13- COHESION AND CRACKING / CRUSHING

1400 K.Sako, R.Kitamura & M.Yamada
            (Kagoshima Universiy, Japan)
            A consideration on effective cohesion of unsaturated sandy soil

1415 I.Preechawuttipong, R.Peyroux & F.RadjaI/font>
            (Universit;
Montpellier II, France)
            Microscopic features of cohesive granular media

1430 C.L.Martin & D.Bouvard
            (Universit;
J. Fourier, France)
            Cohesion of powder compacts containing hard and soft particles

1445 Y.Yamazaki & T.Mizuguchi
            (Hiroshima University, Japan)
            Labyrinthine pattern by front aggregation in drying water-granule systems

1500 D.Robertson & M.D.Bolton
            (Cambridge University, UK)
            DEM simulations of crushable grains and soils

1515 Discussion

1530 Coffee and Posters
 

SESSION 14- EXTERNALLY FORCED BEHAVIOR

1615 A.Corfdir, P.Lerat & J.-N.Roux
            (Laboratoire Central des Ponts et Chauss仔s, France)
            Translation and rotation of grains within an interface between granular media and structure

1630 B.Baylac, S.Masson & J.Martinez
            (Institut National des Sciences Appliqu仔s, France)
            Localisation analysis from DEM simulations of soil-structure interfaces

1645 J.-C.G士inard, W.Losert & J.P.Gollub
            (ツole Normale Sup屍ieure de Lyon, France)
            Frictional mechanics of granular materials : Wet friction, aging, and binary mixtures

1700 H.P.Kuo, Y.L.Ding, A.S.Burbidge, J.P.K.Seville, D.J.Parker, Y.Tsuji & M.J.Adams
            (The University of Birmingham, UK)
            Validation of soft-sphere DEM simulations using the PEPT technique

1715 H.Takahashi, H.Yamanaka, S.Sekino & H.Hashimoto
            (Tohoku University, Japan)
            Study on the mixing behavior of excavated soils and additives in an excavated soil-recycling
            machine

1730 Discussion

1900 Banquet
 

Friday, May 25

0830 Announcements
 

SESSION 15- SHEAR FLOW

0835 R.P.Behringer, J.Geng, D.Howell, E.Longhi, G.Reydellet, L.Vanel, E.Cl士ent & S.Luding
            (Duke University, USA)
            Fluctuations in granular materials (invited lecture)

0915 J.T.Jenkins
            (Cornell University, USA)
            Dense, plane flows of compliant, frictional spheres

0930 H.H.Shen
            (Clarkson University, USA)
            Sample size effect on the constitutive relations of granular materials

0945 H.J.Kim
            (Korea Railroad Research Institute, South Korea)
            A Study on the dynamic behavior of granular materials in a sheared granular flow

1000 B.S竣e, I.Iordanoff & Y.Berthier
            (Laboratoire de M残anique des Contacts, France)
            On the application of granular media shearing in tribology

1015 Discussion

1030 Coffee and Posters
 

SESSION 16- MEASUREMENT SYSTEM

1115 Y.P.Cheng, D.J.White, E.T.Bowman, M.D.Bolton & K.Soga
            (Cambridge University, UK)
            The observation of soil microstructure under load

1130 D.Bonamy, L.Laurent & F.Daviaud
            (Service de Physique de l'師at Condens; France)
            Electrical conductance of a thermally perturbed packing: on the origin of granular Fragility

1145 H.G.B.Allersma
            (Delft University of Technology, Netherlands)
            Optical analysis of stress and strain around a penetrating probe in a granular medium

1200 T.Yanagida, A.J.Matchett & J.M.Coulthard
           (University of Teesside, UK)
           Damping and elastic properties of binary powder mixtures

1215 Discussion

1230 Lunch