A bonded particle modelling for rock material

T. Kazerani, J. Zhao

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

Abstract

Bonded Particle Method (BPM) has recently been extensively used to simulate brittle materials. In BPM, brittle material gets represented as a dense assemblage of particles (grains) connected together by contacts (cement). Only particle motion law and contact constitutive model are therefore needed to perform the simulation. BPM does not require complicated plasticity constitutive laws, but it seriously depends on the contact micro-properties. Therefore a calibration process is needed to establish a unique set of these micro-parameters. In this research, discrete element code of UDEC is employed to apply BPM. This code can create random-shaped and non-uniform-sized particles interacting in frictional and cohesive contacts. Using this approach, contact micro-parameters are calibrated to fit the conventional test results (uniaxial and triaxial compression, and Brazilian tension).

Original languageEnglish
Title of host publicationISRM International Symposium - 5th Asian Rock Mechanics Symposium 2008, ARMS 2008
EditorsAbbas Mahdi, Abdolhadi Ghazvinian
PublisherInternational Society for Rock Mechanics
Pages1077-1083
Number of pages7
ISBN (Print)9781617823527
Publication statusPublished - 1 Jan 2008
Externally publishedYes
Event5th Asian Rock Mechanics Symposium 2008, ARMS 2008 - Tehran, Iran
Duration: 24 Nov 200826 Nov 2008

Publication series

NameISRM International Symposium - 5th Asian Rock Mechanics Symposium 2008, ARMS 2008

Conference

Conference5th Asian Rock Mechanics Symposium 2008, ARMS 2008
CountryIran
CityTehran
Period24/11/0826/11/08

Keywords

  • Bonded Particle Method
  • Brittle Material
  • Contact Properties
  • Discrete Element Method
  • Micromechanics

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