Journal
POWDER TECHNOLOGY
Volume 109, Issue 1-3, Pages 179-191Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0032-5910(99)00235-1
Keywords
discrete element method; micromechanics; granular media; axisymmetric compression/extension
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The paper presents results of numerical simulations of quasi-static shear deformation of a polydisperse system of soft elastic spheres with interface friction and adhesion. Both axisymmetric compression and axisymmetric extension tests have been simulated. In each case, two shear simulations were performed: one in which the mean stress was maintained constant and the other in which the system was deformed at constant volume. In addition to the macroscopic stress-strain behaviour obtained, details are provided about the evolution of various internal variables associated with the micromechanics occurring at the particle scale. (C) 2000 Elsevier Science S.A. All rights reserved.
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