Dynamic mechanical analysis of graphite/epoxy composites with varied interphases

dc.contributor.authorElmore, Jennifer Susanen
dc.contributor.committeecochairReifsnider, Kenneth L.en
dc.contributor.committeecochairStinchcomb, Wayne W.en
dc.contributor.committeememberHajj, Muhammad R.en
dc.contributor.departmentEngineering Mechanicsen
dc.date.accessioned2014-03-14T21:48:34Zen
dc.date.adate2009-10-31en
dc.date.available2014-03-14T21:48:34Zen
dc.date.issued1994-07-15en
dc.date.rdate2009-10-31en
dc.date.sdate2009-10-31en
dc.description.abstractDynamic mechanical analysis (DMA) has been used extensively to characterize polymeric materials. This thesis investigates the use of this technique to characterize composite materials. Four material systems, all having the same fiber and the same matrix material, were systematically altered with different interphase regions. Initial run data indicates that the variation in fiber sizings create different interphase regions that are detectable by DMA. However, some post-cured specimens revealed that those differences are reduced with further heat treatment. Fiber sizing variation also affects the material response to thermal and mechanical cycling. Different fiber surface treatments have little effect on the dynamic mechanical response of the materials. It is shown that DMA is a test method that yields repeatable results and is capable of detecting small changes in composite constituents.en
dc.description.degreeMaster of Scienceen
dc.format.extentix, 90 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-10312009-020414en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-10312009-020414/en
dc.identifier.urihttp://hdl.handle.net/10919/45379en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1994.E566.pdfen
dc.relation.isformatofOCLC# 31256807en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1994.E566en
dc.subject.lcshFibrous composites -- Mechanical propertiesen
dc.subject.lcshFibrous composites -- Testingen
dc.titleDynamic mechanical analysis of graphite/epoxy composites with varied interphasesen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineEngineering Mechanicsen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen
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