Impact damage resistance and tolerance of advanced composite material systems

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dc.contributor.authorTeh, Kuen Taten
dc.contributor.committeechairMorton, Johnen
dc.contributor.committeememberMeirovitch, L.en
dc.contributor.committeememberGriffin Jr., O. Haydenen
dc.contributor.committeememberLandgraf, Ronald W.en
dc.contributor.committeememberRenardy, Yurikoen
dc.contributor.departmentEngineering Mechanicsen
dc.date.accessioned2014-03-14T21:14:18Zen
dc.date.adate2008-06-06en
dc.date.available2014-03-14T21:14:18Zen
dc.date.issued1993en
dc.date.rdate2008-06-06en
dc.date.sdate2008-06-06en
dc.description.abstractExperimental evaluations of impact damage resistance and residual compression strengths after impact are presented for nine laminated fiber reinforced composite material systems. The experiments employ a small scale specimen for assessing the impact damage resistance and impact damage tolerance of these materials. The damage area detected by C-scan is observed to develop linearly with the impact velocity for impact velocities higher than a threshold value. Brittle material systems have lower threshold velocities and higher damage area growth rates than toughened systems. The impact damage resistance of each material system can be characterized with threshold velocity V<sub>c</sub> and damage area growth rate C. The residual compressive Strength after impact was observed to decrease linearly with the damage area equivalent diameter. The rate of compressive strength reduction, K<sub>d</sub>, has been observed to be independent of the material properties. The impact damage can be simulated from quasi-static indentation test in which the damage due to these two loading conditions are quite similar. The residual compressive strength can also be simulated from specimens with similar damage size resulting from quasi-static indentation load.en
dc.description.degreePh. D.en
dc.format.extentxvi, 207 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-06062008-170512en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-06062008-170512/en
dc.identifier.urihttp://hdl.handle.net/10919/38414en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V856_1993.T44.pdfen
dc.relation.isformatofOCLC# 28872581en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1993.T44en
dc.subject.lcshComposite materialsen
dc.subject.lcshFibrous compositesen
dc.subject.lcshImpacten
dc.subject.lcshLaminated materialsen
dc.subject.lcshMaterials -- Dynamic testingen
dc.titleImpact damage resistance and tolerance of advanced composite material systemsen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.disciplineEngineering Mechanicsen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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