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High strength-high temperature laminated sandwich beams

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TitleInfo (displayLabel = Citation Title); (type = uniform)
Title
High strength-high temperature laminated sandwich beams
Name (ID = NAME001); (type = personal)
NamePart (type = family)
Arafa
NamePart (type = given)
Mohamed
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Mohamed Arafa
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author
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Balaguru
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PERUMALSAM
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Advisory Committee
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PERUMALSAM Balaguru
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chair
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Maher
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Ali
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Advisory Committee
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Ali Maher
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internal member
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Najm
NamePart (type = given)
Husamuddin
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Advisory Committee
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Husamuddin Najm
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internal member
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Pelegri
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ASSIMINA
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Advisory Committee
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ASSIMINA Pelegri
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outside member
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Rutgers University
Role
RoleTerm (authority = RULIB)
degree grantor
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Graduate School - New Brunswick
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school
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Text
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theses
OriginInfo
DateCreated (qualifier = exact)
2007
DateOther (qualifier = exact); (type = degree)
2007
Language
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English
PhysicalDescription
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electronic
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application/pdf
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text/xml
Extent
xxvii, 251 pages
Abstract
Structural sandwich panels are commonly used in marine and aerospace applications. They are composed of a core and skins bonded together using polymer matrices. Polyvinyl chloride (PVC)/carbon sandwich beams having organic resins as adhesives are known for their high strength to weight ratio. One of the major concerns is their vulnerability to fire. The organic matrices not only deteriorate at temperatures above 300°C but also emit toxins.
The research presented in this dissertation deals with the development of PVC/carbon sandwich panels using an inorganic matrix. The matrix can sustain temperature up to 1000°C and emits no toxins.
The primary objective of the research presented in this dissertation was to evaluate the feasibility of the matrix for manufacturing sandwich panels. The evaluation was carried out by fabricating sandwich beams and testing them in flexure and high temperature fire exposure.
The variables investigated were: foam density, type and volume fraction of carbon fibers used for skins and extra insulation for fire protection. Strength, stiffness and high temperature resistance properties were measured.
For temperature resistance evaluation, Ohio State University test, the NBS test, and heated element exposure test were used. The results obtained show that inorganic polymer can be effectively used to fabricate fire resistant sandwich beams. The strength and stiffness properties of beams fabricated with inorganic polymer are about -3% and +14% of values obtained for organic polymer skins. The samples with inorganic polymer skin and 1 mm coating easily passed the Federal Aviation Administration (FAA) requirements for fire tests. When exposed to heating element, the beams can sustain 300°C for indefinite duration and 700°C for 5 minutes. Preliminary studies are also presented for an all inorganic sandwich beams that can sustain 1050°C. Analytical procedures are presented to estimate the moment capacities of the beams.
Note (type = degree)
Ph.D.
Note (type = bibliography)
Includes bibliographical references (p. 245-249).
Subject (ID = SUBJ1); (authority = RUETD)
Topic
Civil and Environmental Engineering
Subject (ID = SUBJ2); (authority = ETD-LCSH)
Topic
Sandwich construction
Subject (ID = SUBJ3); (authority = ETD-LCSH)
Topic
Laminated materials
Subject (ID = SUBJ4); (authority = ETD-LCSH)
Topic
Heat resistant materials
RelatedItem (type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier (type = local)
rucore19991600001
Identifier (type = hdl)
http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.15782
Identifier
ETD_277
Location
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NjNbRU
Identifier (type = doi)
doi:10.7282/T36H4FSB
Genre (authority = ExL-Esploro)
ETD doctoral
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The author owns the copyright to this work.
Copyright
Status
Copyright protected
Availability
Status
Open
AssociatedEntity (AUTHORITY = rulib); (ID = 1)
Name
Mohamed Arafa
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - New Brunswick
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Non-exclusive ETD license
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Author Agreement License
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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.
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