Bulletin of the American Physical Society
85th Annual Meeting of the APS Southeastern Section
Volume 63, Number 19
Thursday–Saturday, November 8–10, 2018; Holiday Inn at World’s Fair Park, Knoxville, Tennessee
Session D05: Poster Session (6:00pm-7:30pm)
6:00 PM,
Thursday, November 8, 2018
Holiday Inn Knoxville Downtown
Room: Atrium
Abstract ID: BAPS.2018.SES.D05.74
Abstract: D05.00074 : Measuring the Granular Density of Modes in 3D*
Presenter:
Sydney Blue
(Presbyterian College)
Authors:
Sydney Blue
(Presbyterian College)
Eli T Owens
(Presbyterian College)
Sand covering the earth, snow on a mountainside, and even plastic balls in a ball pit are all considered granular materials. These athermal materials, while ubiquitous, behave in a unique manner. For instance, granular materials have the ability to behave like all three phases of matter; sand in a sandstorm behaves like a gas, whereas sand flowing in an hourglass behaves like a liquid, and packed sand on a beach behaves like a solid. The solid/liquid transition is known as the jamming transition. This study will experimentally measure the granular density of modes, which is analogous to the density of states in a thermal system. In order to measure the granular density of modes, we need to mimic the randomized motion of thermal particles. We accomplish this using a white noise acoustic wave to vibrate the particles of the granular material allowing us to measure the density of modes using methods from thermal physics. From our measurement of the granular density of modes, we are able to study the jamming transition in a 3D granular material; since, as the jamming transition is approached, there is an excess number of low frequency modes in the density of modes.
*This work was funded by grants from SCICU, and the NASA SC Space Grant Consortium.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.SES.D05.74
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700