Open AccessDiscrete element method simulation on the force chains in the two-dimensional granular system under gravity
Author(s) -
Yi Chen-Hong,
Quanquan Mu,
Tao Miao
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.7750
Subject(s) - discrete element method , fractal , granular material , probability distribution , distribution (mathematics) , statistical physics , contact force , element (criminal law) , physics , character (mathematics) , classical mechanics , mechanics , mathematical analysis , mathematics , geometry , statistics , quantum mechanics , political science , law
The discrete element method is used to research the distribution of forces within the two-dimensional granular system under gravity. The force chains among the particles are generated according to the magnitudes of the forces. Then the simulation results are compared with the well-known q-modelα-model and experimental results obtained through the photoelastic test under the same conditions. According to the computational solution we conclude that the simulation results are similar to the experimental results are some what different from the two probability models. In addition we also obtained that the probability distribution of the force is very uneven. The probability of the large force decays exponentially and the distribution of the force chains takes on a fractal character.