Breaking of Rod-shaped Model Material during Compression.

0484832 - ÚCHP 2019 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Kulaviak, Lukáš - Pěnkavová, Věra - Růžička, Marek - Punčochář, Miroslav - Zámostný, P. - Grof, Z. - Štěpánek, F. - Schöngut, M. - Havlica, Jaromír
Breaking of Rod-shaped Model Material during Compression.
EPJ Web of Conferences. Volume 40. Les Ulis Cedex A: EDP Sciences, 2017 - (Radjai, F.), s. 4, č. článku 07019. ISSN 2101-6275. E-ISSN 2100-014X.
[International Conference on Micromechanics on Granular Media, Powders and Grains 2017 /8./. Montpellier (FR), 03.07.2017-07.07.2017]
Grant CEP: GA ČR(CZ) GA15-05534S
Institucionální podpora: RVO:67985858
Klíčová slova: granular material * numerical modelling * compression
Obor OECD: Chemical process engineering
https://www.epj-conferences.org/articles/epjconf/abs/2017/09/epjconf170043/epjconf170043.html

The breakage of a model anisometric dry granular material caused by uniaxial compression was studied. The bed of uniform rod-like pasta particles (8 mm long, aspect ratio 1:8) was compressed (Gamlen Tablet Press) and their size distribution was measured after each run (Dynamic Image Analysing). The compression dynamics was recorded and the effect of several parameters was tested (rate of compression, volume of granular bed, pressure magnitude and mode of application). Besides the experiments, numerical modelling of the compressed breakable material was performed as well, employing the DEM approach (Discrete Element Method). The comparison between the data and the model looks promising.
Trvalý link: http://hdl.handle.net/11104/0279965