Investigation of the asymptotic states of granular materials using a discrete model of anisotropic particles

A. A. Peña*, H. J. Herrmann, A. Lizcano, F. Alonso-Marroquín

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

18 Scopus citations

Abstract

We study the mechanical response of non-cohesive granular materials under monotonic and cyclic loading using a discrete model of polygonal particles. Three asymptotic states are studied: The first is the so-called critical state in which dense and loose media achieve the same void ratio at large strains independently of their initial density state. The second is related to the loss of memory when the granular media is compressed using constant strain rates. The third state is observed under cyclic loading. Thisis given by constant accumulation of permanent deformation that is called ratcheting. These asymptotic states are studied at the micro-mechanical level by following the evolution of the fabric tensor of the contact network.

Original languageEnglish
Title of host publicationPowders and Grains 2005 - Proceedings of the 5th International Conference on Micromechanics of Granular Media
Pages697-700
Number of pages4
StatePublished - 2005
Externally publishedYes

Publication series

NamePowders and Grains 2005 - Proceedings of the 5th International Conference on Micromechanics of Granular Media
Volume1

ASJC Scopus subject areas

  • Materials Science (miscellaneous)

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