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Multi-physics modeling and simulations of thermally-assisted compaction of granular materials

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Title
Multi-physics modeling and simulations of thermally-assisted compaction of granular materials
Name (type = personal)
NamePart (type = family)
Küçük
NamePart (type = given)
Gülşad
NamePart (type = date)
1983-
DisplayForm
Gülşad Küçük
Role
RoleTerm (authority = RULIB)
author
Name (type = personal)
NamePart (type = family)
Cuitino
NamePart (type = given)
Alberto
DisplayForm
Alberto Cuitino
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
chair
Name (type = personal)
NamePart (type = family)
Jaluria
NamePart (type = given)
Yogesh
DisplayForm
Yogesh Jaluria
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = personal)
NamePart (type = family)
Pelegri
NamePart (type = given)
ASSIMINA
DisplayForm
ASSIMINA Pelegri
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = personal)
NamePart (type = family)
Tse
NamePart (type = given)
Stephen
DisplayForm
Stephen Tse
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = personal)
NamePart (type = family)
Gonzalez
NamePart (type = given)
Marcial
DisplayForm
Marcial Gonzalez
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
outside member
Name (type = corporate)
NamePart
Rutgers University
Role
RoleTerm (authority = RULIB)
degree grantor
Name (type = corporate)
NamePart
Graduate School - New Brunswick
Role
RoleTerm (authority = RULIB)
school
TypeOfResource
Text
Genre (authority = marcgt)
theses
OriginInfo
DateCreated (encoding = w3cdtf); (qualifier = exact)
2015
DateOther (qualifier = exact); (type = degree)
2015-01
CopyrightDate (encoding = w3cdtf); (qualifier = exact)
2015
Place
PlaceTerm (type = code)
xx
Language
LanguageTerm (authority = ISO639-2b); (type = code)
eng
Abstract (type = abstract)
Having characteristics that differ from those associated with solids, liquids, and gases, granu- lar materials require miscellaneous multi-physics approaches that integrate theories at different scales. The abstract behavior of granular material provides limitless arrangements in terms of microscopic and macroscopic properties, specifically concerning the thermally-assisted com- paction process. However the uniqueness of particulate systems reduces significantly the effec- tiveness of conventional compaction models based on continuum mechanics description. Thus the current study engages with the problem at both discrete and continuum levels, and bridges the gap between particle-mechanics and macro-scale theories. A mathematical formulation that integrates the thermal and mechanical behavior of discrete system of particles is presented. It is worth noting that thermal expansion experienced by the compacted particles increases the nonlinearity in the thermo-elastic contact problem, which results in various interesting aspects unique to granular matter. Numerical analysis reveals the role of thermal expansion, the role applied thermal and mechanical loads during thermally- assisted compaction of spherical, perfectly conforming particles. Modeling consolidated granular media by using continuum mechanics requires an addi- tional concentration on defining the effective transport properties of the material. Taking advantage of the effective medium approximation, an equivalent continuum model for the state of small-strain deformation under the applied thermal gradient is investigated. The discrepancy between discrete and continuum analysis underlines the importance of describing an effective thermal expansion parameter. Starting from the fundamental understanding of particle interac- tions, an effective thermal expansion coefficient is derived for the current problem statement. Unlike the continuum media, granular materials host inhomogeneous distribution of con- tact networks, which results in uneven distribution of loads in the dense particulate assemblies. Moreover these structural arrangements play critical role in forming preferred paths of heat transport. In spite of the recent experimental and theoretical studies on the evolution of force chains, the formation of heat chains and the correlation between the heat and force chains still remain unclear. In this study two-dimensional numerical simulations are demonstrated to un- derstand some of the fundamental concepts such as: (i) formation of force and heat chains (ii) formation of localized hot zones, (iii) cross-property relations between contact force distribu- tions and heat transported at the contact surfaces, (iv) influence of system characteristics such as diverse size distribution of particles, binary material constituents and different boundary conditions.
Subject (authority = RUETD)
Topic
Mechanical and Aerospace Engineering
Subject (authority = ETD-LCSH)
Topic
Granular materials
Subject (authority = ETD-LCSH)
Topic
Compacting--Mathematical models
Subject (authority = ETD-LCSH)
Topic
Expansion (Heat)
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_6116
PhysicalDescription
Form (authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
1 online resource (xvi, 127 p. : ill.)
Note (type = degree)
Ph.D.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Gülşad Küçük
RelatedItem (type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier (type = local)
rucore19991600001
Location
PhysicalLocation (authority = marcorg); (displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier (type = doi)
doi:10.7282/T3BK1F2Q
Genre (authority = ExL-Esploro)
ETD doctoral
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Rights

RightsDeclaration (ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder (type = personal)
Name
FamilyName
Küçük
GivenName
Gülşad
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2014-12-24 13:12:39
AssociatedEntity
Name
Gulsad Kucuk
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - New Brunswick
AssociatedObject
Type
License
Name
Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
RightsEvent
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2015-01-31
DateTime (encoding = w3cdtf); (qualifier = exact); (point = end)
2017-01-30
Type
Embargo
Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after January 30th, 2017.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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ContentModel
ETD
OperatingSystem (VERSION = 5.1)
windows xp
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