## Abstract

An incremental evolution equation, i.e. a Master equation in statistical mechanics, is introduced for force distributions in polydisperse frictional particle packings. As basic ingredients of the Master equation, the conditional probability distributions of particle overlaps are determined by molecular dynamics simulations. Interestingly, tails of the distributions become much narrower in the case of frictional particles than friction- less particles, implying that correlations of overlaps are strongly reduced by microscopic friction. Comparing different size distributions, we find that the tails are wider for the wider distribution.

Original language | English |
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Title of host publication | Proceedings of the 4th International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2015 |

Publisher | International Center for Numerical Methods in Engineering |

Pages | 1028-1039 |

Number of pages | 12 |

ISBN (Electronic) | 9788494424472 |

Publication status | Published - 2015 |

Externally published | Yes |

Event | 4th International Conference on Particle-Based Methods, PARTICLES 2015 - Barcelona, Spain Duration: 2015 Sep 28 → 2015 Sep 30 |

### Other

Other | 4th International Conference on Particle-Based Methods, PARTICLES 2015 |
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Country | Spain |

City | Barcelona |

Period | 15/9/28 → 15/9/30 |

## Keywords

- DEM
- Force chains
- Friction
- Granular materials
- Quasi-static deformations
- Stochastic model

## ASJC Scopus subject areas

- Atomic and Molecular Physics, and Optics