Granular Matter

, Volume 13, Issue 4, pp 341–364 | Cite as

A discrete element model to describe failure of strong rock in uniaxial compression

  • Christian Ergenzinger
  • Robert Seifried
  • Peter EberhardEmail author
Original Paper


A bonded particle model is investigated by means of an extended Discrete Element Method with respect to failure of strong rock in uniaxial compression. A coordination number based inflation scheme is presented, which generates isotropic sphere packings that are featuring a higher average coordination number than conventional procedures. A progressive failure model is proposed, which promotes crack propagation and localization and allows adjusting brittleness of fracture. Failure of the granular solid is discussed in detail. The fracture process is studied in dependence of the introduced failure models. The influence of particle size and bond strength distributions, particle numbers, particle layering in finite sphere packings and end constraints is addressed. Comparison to published experimental results reveals that many of the observed features of rock failure are reproduced.


Granular material Discrete Element Method Bonded particles Particle packing Particle bond failure Rock strength and failure 


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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Christian Ergenzinger
    • 1
  • Robert Seifried
    • 1
  • Peter Eberhard
    • 1
    Email author
  1. 1.Institute of Engineering and Computational MechanicsUniversity of StuttgartStuttgartGermany

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