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Title: Studies of elasticity, sound propagation and attenuation of acoustic modes in granular media: final report

Abstract

This is the final report describing the results of DOE Grant # DE-FG02-03ER15458 with original termination date of April 31, 2013, which has been extended to April 31, 2014. The goal of this project is to develop a theoretical and experimental understanding of sound propagation, elasticity and dissipation in granular materials. The topic is relevant for the efficient production of hydrocarbon and for identifying and characterizing the underground formation for storage of either CO 2 or nuclear waste material. Furthermore, understanding the basic properties of acoustic propagation in granular media is of importance not only to the energy industry, but also to the pharmaceutical, chemical and agricultural industries. We employ a set of experimental, theoretical and computational tools to develop a study of acoustics and dissipation in granular media. These include the concept effective mass of granular media, normal modes analysis, statistical mechanics frameworks and numerical simulations based on Discrete Element Methods. Effective mass measurements allow us to study the mechanisms of the elastic response and attenuation of acoustic modes in granular media. We perform experiments and simulations under varying conditions, including humidity and vacuum, and different interparticle force-laws to develop a fundamental understanding of the mechanisms of damping andmore » acoustic propagation in granular media. A theoretical statistical approach studies the necessary phase space of configurations in pressure, volume fraction to classify granular materials.« less

Authors:
 [1];  [2]
  1. City College of New York, NY (United States). Levich Inst., Dept. of Physcis
  2. Schlumberger-Doll Research, Cambridge, MA (United States)
Publication Date:
Research Org.:
City College of New York, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1151803
Report Number(s):
DOE-CCNY-15458
DOE Contract Number:  
FG02-03ER15458
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; elasticity; granular materials; geomechanics

Citation Formats

Makse, Hernan A., and Johnson, David L. Studies of elasticity, sound propagation and attenuation of acoustic modes in granular media: final report. United States: N. p., 2014. Web. doi:10.2172/1151803.
Makse, Hernan A., & Johnson, David L. Studies of elasticity, sound propagation and attenuation of acoustic modes in granular media: final report. United States. doi:10.2172/1151803.
Makse, Hernan A., and Johnson, David L. Wed . "Studies of elasticity, sound propagation and attenuation of acoustic modes in granular media: final report". United States. doi:10.2172/1151803. https://www.osti.gov/servlets/purl/1151803.
@article{osti_1151803,
title = {Studies of elasticity, sound propagation and attenuation of acoustic modes in granular media: final report},
author = {Makse, Hernan A. and Johnson, David L.},
abstractNote = {This is the final report describing the results of DOE Grant # DE-FG02-03ER15458 with original termination date of April 31, 2013, which has been extended to April 31, 2014. The goal of this project is to develop a theoretical and experimental understanding of sound propagation, elasticity and dissipation in granular materials. The topic is relevant for the efficient production of hydrocarbon and for identifying and characterizing the underground formation for storage of either CO2 or nuclear waste material. Furthermore, understanding the basic properties of acoustic propagation in granular media is of importance not only to the energy industry, but also to the pharmaceutical, chemical and agricultural industries. We employ a set of experimental, theoretical and computational tools to develop a study of acoustics and dissipation in granular media. These include the concept effective mass of granular media, normal modes analysis, statistical mechanics frameworks and numerical simulations based on Discrete Element Methods. Effective mass measurements allow us to study the mechanisms of the elastic response and attenuation of acoustic modes in granular media. We perform experiments and simulations under varying conditions, including humidity and vacuum, and different interparticle force-laws to develop a fundamental understanding of the mechanisms of damping and acoustic propagation in granular media. A theoretical statistical approach studies the necessary phase space of configurations in pressure, volume fraction to classify granular materials.},
doi = {10.2172/1151803},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Sep 03 00:00:00 EDT 2014},
month = {Wed Sep 03 00:00:00 EDT 2014}
}

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