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dc.contributor.authorCastellucci, Matten_US
dc.date.accessioned2014-03-14T20:41:11Z
dc.date.available2014-03-14T20:41:11Z
dc.date.issued2009-06-24en_US
dc.identifier.otheretd-07072009-135557en_US
dc.identifier.urihttp://hdl.handle.net/10919/33920
dc.description.abstractSelf-healing materials have received considerable development in the last decade. Recent results have demonstrated healing in polymeric materials via a chemical reaction using a healing agent or response to thermal treatment. The goal of this research is to develop a new composite material, for application in wire insulation, that can detect damage and heal itself using resistance heating. The composite material is composed of a conductive network embedded in a polymer matrix. The conductive network is used for damage detection and resistive heating. A matrix material is used that melts when heated and flows to fill damage. External electronic circuitry is used to implement a damage detection algorithm and apply current for resistive heating. Surlyn 8940 is chosen as the polymer matrix and carbon fibers are selected for the resistive heating elements. Methods for melt processing Surlyn are developed and used to produce Surlyn films and composite samples where carbon fiber is embedded in a Surlyn matrix. A finite element model of the resistive heating process is developed to predict the temperature distribution. Thermal imaging is used to characterize resistive heating while optical microscopy and tensile testing are used to characterize healing. Damage detection using capacitive measurements is demonstrated and characterized. The self-healing composite is placed on top of another conductive material such as in the wire insulation application. Capacitance measurements are made using the conductive network inside the composite is used as one electrode and the wide conductor as the second electrode.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartCastellucci_thesis_final.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectself-healingen_US
dc.subjectdamage detectionen_US
dc.titleResistive heating for self-healing materials based on ionomeric polymersen_US
dc.typeThesisen_US
dc.contributor.departmentMechanical Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineMechanical Engineeringen_US
dc.contributor.committeechairLeo, Donald J.en_US
dc.contributor.committeememberInman, Daniel J.en_US
dc.contributor.committeememberSundaresan, Vishnuen_US
dc.contributor.committeememberCase, Scott W.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-07072009-135557/en_US
dc.date.sdate2009-07-07en_US
dc.date.rdate2009-07-28
dc.date.adate2009-07-28en_US


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