Visualization of characteristics of the contact network between spheres in 3D assembly

• Autorzy: Kobylka R. , Molenda M.
• Języki publikacji: EN

Abstrakty

EN

Analysis of geometrical features of 3D granular assemblies poses difficulties in visualization of the effects taking place within the volume of the sample. This work presents the method for visualization of spatial distribution of the contact points in a monodisperse; frictional assembly composed of spheres and generated using three filling methods for a cuboidal or cylindrical container. The visualization is based on the projection of the contact points between particles on a hypothetical sphere followed by their representation on the plane. The proposed method was found to adequately visualize differences in the spatial structure of assemblies generated using various filling methods.

• Wydawca: -
• Czasopismo: International Agrophysics
• Rocznik: 2013
• Tom: 27
• Numer: 3
• Opis fizyczny: p.275-281,fig.,ref.

Twórcy

autor

Kobylka R.

• Institute of Agrophysics, Polish Academy of Sciences, Doswiadczalna 4, 20-290 Lublin, Poland

autor

Molenda M.

• Institute of Agrophysics, Polish Academy of Sciences, Doswiadczalna 4, 20-290 Lublin, Poland

Bibliografia

• Cundall P.A. and Strack O.D., 1979. A discrete numerical model for granular assemblies. Geotechnique, 29(1), 47-65.
• Drescher A. and de Josselin de Jong G., 1972. Photoelastic verification of a mechanical model for the flow of a granular material. J. Mech. Phys. Solids, 20(4), 337-351.
• Fisher N.I., Lewis T., and Embleton B.J.J., 1987. Statistical Analysis of Spherical Data. Cambridge Univ. Press, UK. Horabik J., Molenda M., Thompson S.A., and Ross I.J., 1993. Asymmetry of bin loads introduced by eccentric discharge. Trans. ASAE, 36(2), 577-582.
• Kobyłka R. and Molenda M., 2013. DEM modelling of silo loads asymmetry due to eccentric filling and discharge. Powder Technol., 233, 65-71.
• Kuwabara L. and Kono K., 1987. Restitution coefficient in a collision between two spheres. Jpn. J. Appl. Phys., 26, 1230- 1233.
• Molenda M. and Stasiak M., 2002. Determination of the elastic constants of cereal grains in a uniaxial compression test. Int. Agrophysics, 16, 61-65.
• Moysey E.B., 1979. Active and passive pressures in deep grain bins. Trans. ASAE, 22(6), 1409-1413.
• Mueller G.E., 1993. Angular void fraction distributions in randomly packed fixed beds of uniformly sized spheres in cylindrical containers. Powder Technol., 77, 313-319.
• Nouguier-Lehon C., Cambou B., and Vincens E., 2003. Anisotropy induced by particle shape in granular materials (Ed. K. Bagi) Proc. QuaDPM'03 Workshop, Publishing Company of BUTE, August 26-28, Budapest, Hungary.
• Rothenburg L. and Bathurst R.J., 1989. Analytical sudy of induced anisotropy in dealised granular materials, Geotechnique, 39, 4, 601-614.
• Schwarzer S., 2004. PAPA - Parallel algorithm for PArticle flow problems. University of Stuttgart, Germany.
• Sitharam T. and Shimizu N., 2000. Micromechanical behaviour of granular materials under monotonic lodaing: Numerical simulation using discrete element method. Int. Symp. Eng. Mechanics Conf., EM2000, May 21-24, Austin, TX, USA.
• Sykut J., Molenda M., and Horabik J., 2008. Influence of filling method on packing structure in model silo and DEM simulations. Granular Matter, 10, 273-278.
• Wiącek J. and Molenda M., 2011. Moisture-dependent physical properties of rapeseed – experimental and DEM modeling. Int. Agrophys., 25, 59-65.
• Wojtkowski M., Pecen J., Horabik J., and Molenda M., 2010. Rapeseed impact against a flat surface: Physical testing and DEM simulation with two contact models. Powder Technol., 198(1), 61-68.

Uwagi

PL

Rekord w opracowaniu