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Updated area function analysis for nano indentation of micro fibers
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TitleInfo
Title
Updated area function analysis for nano indentation of micro fibers
Name (type = personal)
NamePart (type = family)
Turla
NamePart (type = given)
Prashanth
NamePart (type = date)
1993-
DisplayForm
Prashanth Turla
Role
RoleTerm (authority = RULIB)
author
Name (type = personal)
NamePart (type = family)
Pelegri
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Assimina A
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Assimina A Pelegri
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Advisory Committee
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chair
Name (type = personal)
NamePart (type = family)
Cuitino
NamePart (type = given)
Alberto
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Alberto Cuitino
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Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = personal)
NamePart (type = family)
Singer
NamePart (type = given)
Jonathan
DisplayForm
Jonathan Singer
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = corporate)
NamePart
Rutgers University
Role
RoleTerm (authority = RULIB)
degree grantor
Name (type = corporate)
NamePart
School of Graduate Studies
Role
RoleTerm (authority = RULIB)
school
TypeOfResource
Text
Genre (authority = marcgt)
theses
OriginInfo
DateCreated (qualifier = exact)
2017
DateOther (qualifier = exact); (type = degree)
2017-10
CopyrightDate (encoding = w3cdtf); (qualifier = exact)
2017
Place
PlaceTerm (type = code)
xx
Language
LanguageTerm (authority = ISO639-2b); (type = code)
eng
Abstract (type = abstract)
Kevlar has a remarkable combination of high strength, high modulus, toughness and thermal stability compared to many other organic fibers. These impressive properties are due to their molecular structure, developed during their production process which is based on liquid crystal technology, as the rigid molecular chains form a mesophase in solution. Modeling of the high-performance ballistic fabric has gradually shifted from the continuum and yarn length scales to the sub-yarn length scale which enabled establishment of the relationships between the fabric penetration resistance and various fiber-level phenomena such as fiber-fiber friction, fiber twist, and transverse properties of the fibers. An instrumented indentation method was established in this thesis work to accurately measure the local elastic-plastic material properties of a single fiber. As indentation theory assumes that the indent is being placed on a semi-infinite flat surface, general area function cannot predict accurate projected area on a circular specimen. The indentations on cylindrical surface require modified equations to determine the area function and subsequently, the hardness and reduced modulus. The Oliver-Pharr instrumented indentation data analysis method is followed for the calculation of area function of the indenter geometry through the simulation of the known properties of the material. This new area function calculation method is compared with the geometry correction method by Quinn McAllister and John W. Gillespie, Jr to calculate the elastic modulus of the fiber in transverse direction. In addition, Compliance contributions are attributed to the lack of constraint due to the finite geometry of a curved fiber surface. This compliance contribution is accounted by using a proposed area correction to capture the geometry of the curved fiber-probe contact. Implementation of these corrections to experimental indentation curves results in accurate measurements of the fiber elastic modulus.
Subject (authority = RUETD)
Topic
Mechanical and Aerospace Engineering
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_8483
PhysicalDescription
Form (authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
1 online resource (ix, 38 p. : ill.)
Note (type = degree)
M.S.
Note (type = bibliography)
Includes bibliographical references
Subject (authority = ETD-LCSH)
Topic
Polyphenyleneterephthalamide
Note (type = statement of responsibility)
by Prashanth Turla
RelatedItem (type = host)
TitleInfo
Title
School of Graduate Studies Electronic Theses and Dissertations
Identifier (type = local)
rucore10001600001
Location
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NjNbRU
Identifier (type = doi)
doi:10.7282/T3S185N6
Genre (authority = ExL-Esploro)
ETD graduate
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Rights

RightsDeclaration (ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder (type = personal)
Name
FamilyName
Turla
GivenName
Prashanth
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2017-10-02 12:00:34
AssociatedEntity
Name
Prashanth Turla
Role
Copyright holder
Affiliation
Rutgers University. School of Graduate Studies
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.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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Technical

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ContentModel
ETD
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windows xp
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1.5
DateCreated (point = end); (encoding = w3cdtf); (qualifier = exact)
2017-10-11T11:41:46
DateCreated (point = end); (encoding = w3cdtf); (qualifier = exact)
2017-10-11T11:41:46
ApplicationName
Microsoft® Word 2013
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