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dc.contributor.authorAgarwal, Shashank
dc.contributor.authorKarsai, Andras
dc.contributor.authorGoldman, Daniel I.
dc.contributor.authorKamrin, Kenneth N
dc.date.accessioned2021-10-12T13:49:09Z
dc.date.available2021-10-12T13:49:09Z
dc.date.issued2021-06
dc.date.submitted2021-01
dc.identifier.issn1744-683X
dc.identifier.issn1744-6848
dc.identifier.urihttps://hdl.handle.net/1721.1/132923
dc.description.abstractGranular intrusion is commonly observed in natural and human-made settings. Unlike typical solids and fluids, granular media can simultaneously display fluid-like and solid-like characteristics in a variety of intrusion scenarios. This multi-phase behavior increases the difficulty of accurately modeling these and other yielding (or flowable) materials. Micro-scale modeling methods, such as DEM (Discrete Element Method), capture this behavior by modeling the media at the grain scale, but there is often interest in the macro-scale characterizations of such systems. We examine the efficacy of a macro-scale continuum approach in modeling and understanding the physics of various macroscopic phenomena in a variety of granular intrusion cases using two basic frictional yielding constitutive models. We compare predicted granular force response and material flow to experimental data in four quasi-2D intrusion cases: (1) depth-dependent force response in horizontal submerged-intruder motion; (2) separation-dependent drag variation in parallel-plate vertical-intrusion; (3) initial-density-dependent drag fluctuations in free surface plowing, and (4) flow zone development during vertical plate intrusions in under-compacted granular media. Our continuum modeling approach captures the flow process and drag forces while providing key meso- and macro-scopic insights. The modeling results are then compared to experimental data. Our study highlights how continuum modeling approaches provide an alternative for efficient modeling as well as a conceptual understanding of various granular intrusion phenomena.en_US
dc.description.sponsorshipArmy Research Office (Grants W911NF1510196, W911NF1810118, W911NF1910431, W911NF-18-1-0120)en_US
dc.publisherRoyal Society of Chemistry (RSC)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1039/d1sm00130ben_US
dc.rightsCreative Commons Attribution Noncommercial 3.0 unported licenseen_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/en_US
dc.sourceRoyal Society of Chemistry (RSC)en_US
dc.titleEfficacy of simple continuum models for diverse granular intrusionsen_US
dc.typeArticleen_US
dc.identifier.citationAgarwal, Shashank et al. "Efficacy of simple continuum models for diverse granular intrusions." Soft Matter 17, 30 (June 2021): 7196. © 2021 The Royal Society of Chemistryen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.relation.journalSoft Matteren_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.date.submission2021-08-13T16:54:08Z
mit.journal.volume17en_US
mit.journal.issue30en_US
mit.licensePUBLISHER_CC
mit.metadata.statusCompleteen_US


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