Dilatancy of frictional granular materials under oscillatory shear with constant pressure

We perform numerical simulations of a two-dimensional frictional granular system under oscillatory shear confined by constant pressure. We found that the system undergoes dilatancy as the strain increases. We confirmed that compaction also takes place at an intermediate strain amplitude for a small...

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Main Authors: Ishima Daisuke, Hayakawa Hisao
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_02011.pdf
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author Ishima Daisuke
Hayakawa Hisao
author_facet Ishima Daisuke
Hayakawa Hisao
author_sort Ishima Daisuke
collection DOAJ
description We perform numerical simulations of a two-dimensional frictional granular system under oscillatory shear confined by constant pressure. We found that the system undergoes dilatancy as the strain increases. We confirmed that compaction also takes place at an intermediate strain amplitude for a small mutual friction coefficient between particles. We also found that compaction depends on the confinement pressure while dilatancy little depends on the pressure.
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spelling doaj.art-9f43170dceb94bac9be8d9a126d85c252022-12-21T21:25:32ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012490201110.1051/epjconf/202124902011epjconf_pg2021_02011Dilatancy of frictional granular materials under oscillatory shear with constant pressureIshima Daisuke0Hayakawa Hisao1Yukawa Institute for Theoretical Physics, Kyoto UniversityYukawa Institute for Theoretical Physics, Kyoto UniversityWe perform numerical simulations of a two-dimensional frictional granular system under oscillatory shear confined by constant pressure. We found that the system undergoes dilatancy as the strain increases. We confirmed that compaction also takes place at an intermediate strain amplitude for a small mutual friction coefficient between particles. We also found that compaction depends on the confinement pressure while dilatancy little depends on the pressure.https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_02011.pdf
spellingShingle Ishima Daisuke
Hayakawa Hisao
Dilatancy of frictional granular materials under oscillatory shear with constant pressure
EPJ Web of Conferences
title Dilatancy of frictional granular materials under oscillatory shear with constant pressure
title_full Dilatancy of frictional granular materials under oscillatory shear with constant pressure
title_fullStr Dilatancy of frictional granular materials under oscillatory shear with constant pressure
title_full_unstemmed Dilatancy of frictional granular materials under oscillatory shear with constant pressure
title_short Dilatancy of frictional granular materials under oscillatory shear with constant pressure
title_sort dilatancy of frictional granular materials under oscillatory shear with constant pressure
url https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_02011.pdf
work_keys_str_mv AT ishimadaisuke dilatancyoffrictionalgranularmaterialsunderoscillatoryshearwithconstantpressure
AT hayakawahisao dilatancyoffrictionalgranularmaterialsunderoscillatoryshearwithconstantpressure