Impact response of granular layers

Amnaya Awasthi; Ziyi Wang; Natalie Broadhurst; Philippe Geubelle

doi:10.1007/s10035-015-0547-3

Impact response of granular layers

Amnaya Awasthi, Ziyi Wang, Natalie Broadhurst, Philippe Geubelle

Research output: Contribution to journal › Article › peer-review

Abstract

Motivated by the wave tailoring potential of granular media, this study aims at evaluating force transmission through granular layers made of spherical particles. 2D simulations based on Hertzian contact law between adjacent particles are performed on two distinct systems: (1) layers consisting of ordered bimaterial lattices, and (2) single material layers with random packing. For the ordered systems, force transmission properties are found to vary with material mismatch and layer thickness. Transmitted force-decay in random configurations is substantially higher than those in the ordered systems.

Original language	English (US)
Pages (from-to)	21-31
Number of pages	11
Journal	Granular Matter
Volume	17
Issue number	1
DOIs	https://doi.org/10.1007/s10035-015-0547-3
State	Published - Feb 2015

Keywords

Force transmission
Granular media
Hertz potential
Material mismatch
Ordered packing
Random packing

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
General Physics and Astronomy

Online availability

10.1007/s10035-015-0547-3

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Cite this

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abstract = "Motivated by the wave tailoring potential of granular media, this study aims at evaluating force transmission through granular layers made of spherical particles. 2D simulations based on Hertzian contact law between adjacent particles are performed on two distinct systems: (1) layers consisting of ordered bimaterial lattices, and (2) single material layers with random packing. For the ordered systems, force transmission properties are found to vary with material mismatch and layer thickness. Transmitted force-decay in random configurations is substantially higher than those in the ordered systems.",

keywords = "Force transmission, Granular media, Hertz potential, Material mismatch, Ordered packing, Random packing",

author = "Amnaya Awasthi and Ziyi Wang and Natalie Broadhurst and Philippe Geubelle",

note = "Authors acknowledge the support by the United States Army Research Office through the Multi University Research Initiative project number W911NF0910436 (Program Manager Dr. David Stepp). Natalie Broadhurst was partially supported and sponsored by the Illinois Space Grant Consortium, as part of the Undergraduate Research Opportunity Program held every summer in the Department of Aerospace Engineering at the University of Illinois.",

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AU - Wang, Ziyi

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AU - Geubelle, Philippe

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PY - 2015/2

Y1 - 2015/2

N2 - Motivated by the wave tailoring potential of granular media, this study aims at evaluating force transmission through granular layers made of spherical particles. 2D simulations based on Hertzian contact law between adjacent particles are performed on two distinct systems: (1) layers consisting of ordered bimaterial lattices, and (2) single material layers with random packing. For the ordered systems, force transmission properties are found to vary with material mismatch and layer thickness. Transmitted force-decay in random configurations is substantially higher than those in the ordered systems.

AB - Motivated by the wave tailoring potential of granular media, this study aims at evaluating force transmission through granular layers made of spherical particles. 2D simulations based on Hertzian contact law between adjacent particles are performed on two distinct systems: (1) layers consisting of ordered bimaterial lattices, and (2) single material layers with random packing. For the ordered systems, force transmission properties are found to vary with material mismatch and layer thickness. Transmitted force-decay in random configurations is substantially higher than those in the ordered systems.

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KW - Hertz potential

KW - Material mismatch

KW - Ordered packing

KW - Random packing

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Impact response of granular layers

Abstract

Keywords

ASJC Scopus subject areas

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