dc.contributor.author | Agarwal, Shashank | |
dc.contributor.author | Karsai, Andras | |
dc.contributor.author | Goldman, Daniel I. | |
dc.contributor.author | Kamrin, Kenneth N | |
dc.date.accessioned | 2021-10-12T13:49:09Z | |
dc.date.available | 2021-10-12T13:49:09Z | |
dc.date.issued | 2021-06 | |
dc.date.submitted | 2021-01 | |
dc.identifier.issn | 1744-683X | |
dc.identifier.issn | 1744-6848 | |
dc.identifier.uri | https://hdl.handle.net/1721.1/132923 | |
dc.description.abstract | Granular 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.sponsorship | Army Research Office (Grants W911NF1510196, W911NF1810118, W911NF1910431, W911NF-18-1-0120) | en_US |
dc.publisher | Royal Society of Chemistry (RSC) | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1039/d1sm00130b | en_US |
dc.rights | Creative Commons Attribution Noncommercial 3.0 unported license | en_US |
dc.rights.uri | https://creativecommons.org/licenses/by-nc/3.0/ | en_US |
dc.source | Royal Society of Chemistry (RSC) | en_US |
dc.title | Efficacy of simple continuum models for diverse granular intrusions | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Agarwal, Shashank et al. "Efficacy of simple continuum models for diverse granular intrusions." Soft Matter 17, 30 (June 2021): 7196. © 2021 The Royal Society of Chemistry | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Mechanical Engineering | en_US |
dc.relation.journal | Soft Matter | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dspace.date.submission | 2021-08-13T16:54:08Z | |
mit.journal.volume | 17 | en_US |
mit.journal.issue | 30 | en_US |
mit.license | PUBLISHER_CC | |
mit.metadata.status | Complete | en_US |