Detail publikace

Representation of bulk and surface crushing phenomenon in DEM model of railway ballast.

DUBINA, R. ELIÁŠ, J.

Originální název

Representation of bulk and surface crushing phenomenon in DEM model of railway ballast.

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

To simulate ballast behaviour in railway track using Discrete Element Models (DEM), it is reasonable to take into account the crushing and the abrasion of grains. Nowadays, two approaches have been used in discrete modelling. The first approach represents each grain as an assembly of smaller particles with cohesive contacts between them. The crushing is represented by rupturing of contacts between particles. Such approach is universal, but demands very high computational resources. Therefore, the second approach is utilized here. At the beginning every ballast grain is modelled as one rigid body and may be replaced by several smaller particles later. Both crushing and abrasion is considered. Crushing is studied on model of oedometric test of railway ballast.

Klíčová slova

Railway ballast, Discrete Element Method (DEM), bulk crushing, oedometric test

Autoři

DUBINA, R.; ELIÁŠ, J.

Rok RIV

2015

Vydáno

28. 9. 2015

Místo

Barcelona, Španělsko

ISBN

978-84-944244-7-2

Kniha

Proceedings of Particle-based Methods IV – Fundamentals and Applications

Strany od

34

Strany do

40

Strany počet

7

BibTex

@inproceedings{BUT124066,
  author="Radek {Dubina} and Jan {Eliáš}",
  title="Representation of bulk and surface crushing phenomenon in DEM model of railway ballast.",
  booktitle="Proceedings of  Particle-based Methods IV – Fundamentals and Applications",
  year="2015",
  pages="34--40",
  address="Barcelona, Španělsko",
  isbn="978-84-944244-7-2"
}