Rattlers’ involvement for possibly looser critical states under higher mean stress

Rattlers’ involvement for possibly looser critical states under higher mean stress

The critical state of a granular material made of rounded tetrahedral particles is studied through DEM simulations of triaxial compressions. A minimum number of 7,500 particles is first obtained as the representative volume element (RVE) for the present triaxial simulations. Then, the macroscopic cr...

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Main Authors: Duverger Sacha, Duriez Jérôme, Philippe Pierre, Bonelli Stéphane
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_11002.pdf
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spelling doaj-20bc51bfec5c42729d0965eadaadf68d2021-08-02T22:21:45ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012491100210.1051/epjconf/202124911002epjconf_pg2021_11002Rattlers’ involvement for possibly looser critical states under higher mean stressDuverger Sacha0Duriez Jérôme1Philippe Pierre2Bonelli Stéphane3INRAE, Aix Marseille Univ, RECOVERINRAE, Aix Marseille Univ, RECOVERINRAE, Aix Marseille Univ, RECOVERINRAE, Aix Marseille Univ, RECOVERThe critical state of a granular material made of rounded tetrahedral particles is studied through DEM simulations of triaxial compressions. A minimum number of 7,500 particles is first obtained as the representative volume element (RVE) for the present triaxial simulations. Then, the macroscopic critical state line (CSL) is shown to be increasing in the (stress, density) space for low confining pressures. Such an unexpected behaviour is explained by the existence of a significant proportion of rattlers. Considering rattlers as voids indeed reinstates a classically decreasing CSL.https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_11002.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Duverger Sacha
Duriez Jérôme
Philippe Pierre
Bonelli Stéphane
spellingShingle Duverger Sacha
Duriez Jérôme
Philippe Pierre
Bonelli Stéphane
Rattlers’ involvement for possibly looser critical states under higher mean stress
EPJ Web of Conferences
author_facet Duverger Sacha
Duriez Jérôme
Philippe Pierre
Bonelli Stéphane
author_sort Duverger Sacha
title Rattlers’ involvement for possibly looser critical states under higher mean stress
title_short Rattlers’ involvement for possibly looser critical states under higher mean stress
title_full Rattlers’ involvement for possibly looser critical states under higher mean stress
title_fullStr Rattlers’ involvement for possibly looser critical states under higher mean stress
title_full_unstemmed Rattlers’ involvement for possibly looser critical states under higher mean stress
title_sort rattlers’ involvement for possibly looser critical states under higher mean stress
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2021-01-01
description The critical state of a granular material made of rounded tetrahedral particles is studied through DEM simulations of triaxial compressions. A minimum number of 7,500 particles is first obtained as the representative volume element (RVE) for the present triaxial simulations. Then, the macroscopic critical state line (CSL) is shown to be increasing in the (stress, density) space for low confining pressures. Such an unexpected behaviour is explained by the existence of a significant proportion of rattlers. Considering rattlers as voids indeed reinstates a classically decreasing CSL.
url https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_11002.pdf
work_keys_str_mv AT duvergersacha rattlersinvolvementforpossiblyloosercriticalstatesunderhighermeanstress
AT duriezjerome rattlersinvolvementforpossiblyloosercriticalstatesunderhighermeanstress
AT philippepierre rattlersinvolvementforpossiblyloosercriticalstatesunderhighermeanstress
AT bonellistephane rattlersinvolvementforpossiblyloosercriticalstatesunderhighermeanstress
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