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dc.contributor.author
Feldfogel, Shai
dc.contributor.author
Karapiperis, Konstantinos
dc.contributor.author
Andrade, Jose
dc.contributor.author
Kammer, David S.
dc.date.accessioned
2024-03-11T10:31:19Z
dc.date.available
2023-12-04T05:04:02Z
dc.date.available
2023-12-04T08:19:54Z
dc.date.available
2024-03-11T10:31:19Z
dc.date.issued
2024-03-15
dc.identifier.issn
1097-0207
dc.identifier.issn
0029-5981
dc.identifier.other
10.1002/nme.7400
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/645005
dc.identifier.doi
10.3929/ethz-b-000645005
dc.description.abstract
The level-set-discrete-element-method (LS-DEM) was developed to overcome the shape limitation of traditional discrete element method. LS-DEM's shape generality relies on a node-based surface discretization of grain boundary, and it has been used to shed new light of a variety of granular mechanics applications with realistically shaped grains and structural assemblies made of unbonded building blocks. Due to the node-based discretization of grain boundary, the original LS-DEM is discretization-sensitive and it suffers from divergence of the response with discretization refinement, particularly for highly compressible problems. Previous studies have identified and addressed this issue in different ways, each with its own advantages and shortcomings. Here, we propose a methodologically-rigorous and computationally-efficient adapted formulation which solves LS-DEM's discretization-sensitivity issue. It adopts the classical contact description of continuum mechanics, wherein the contact interactions are traction-based. We demonstrate the convergence of the adapted LS-DEM in several highly compressible cases studies, show that it is key to correctly capturing the mechanical response, and compare it to alternative formulations.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Wiley
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
contact
en_US
dc.subject
convergence
en_US
dc.subject
DEM
en_US
dc.subject
granular material
en_US
dc.subject
level set
en_US
dc.subject
level-set-DEM
en_US
dc.subject
mesh-sensitivity
en_US
dc.subject
topologically interlocked structures
en_US
dc.title
A discretization-convergent level-set-discrete-element-method using a continuum-based contact formulation
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2023-11-20
ethz.journal.title
International Journal for Numerical Methods in Engineering
ethz.journal.volume
125
en_US
ethz.journal.issue
5
en_US
ethz.journal.abbreviated
Int. J. Numer. Meth. Engng
ethz.pages.start
e7400
en_US
ethz.size
12 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02606 - Institut für Baustoffe (IfB) / Institute for Building Materials::09650 - Kammer, David / Kammer, David
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02606 - Institut für Baustoffe (IfB) / Institute for Building Materials::09650 - Kammer, David / Kammer, David
ethz.date.deposited
2023-12-04T05:04:21Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2024-03-11T10:31:20Z
ethz.rosetta.lastUpdated
2024-03-11T10:31:20Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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