Simulation of Fatigue Performance & Creep Rupture of Glass-Reinforced Polymeric Composites for Infrastructure Applications

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dc.contributor.authorMcBagonluri-Nuuri, David Freden
dc.contributor.committeechairLesko, John J.en
dc.contributor.committeememberDillard, David A.en
dc.contributor.committeememberGao, David Y.en
dc.contributor.committeememberCase, Scott W.en
dc.contributor.departmentEngineering Science and Mechanicsen
dc.date.accessioned2014-03-14T20:52:14Zen
dc.date.adate1998-08-21en
dc.date.available2014-03-14T20:52:14Zen
dc.date.issued1998-08-18en
dc.date.rdate1998-08-21en
dc.date.sdate1998-08-18en
dc.description.abstractA simulation model which incorporates the statistical- and numerical-based Lattice Green Function Local Load Sharing Model and a Fracture Mechanics-based Residual Strength Model has been developed. The model simulates creep rupture by imposing a fixed load of constant stress on the composite over the simulation duration. Simulation of the fatigue of glass fiber-reinforced composites is achieved by replacing the constant stress parameter in the model with a sinusoidal wave function. Results from the creep rupture model using fused silica fiber parameters, compare well with S-2 glass/epoxy systems. Results using Mandell's postulate that fatigue failure in glass fiber-reinforced polymeric composites is a fiber-dominated mechanism, with a characteristic slope of 10 %UTS/decade are consistent with available experimental data. The slopes of fatigue curves for simulated composites for three frequencies namely: 2, 5 and 10 Hz are within 12-14 %UTS/decade compared with that of 10.6-13.0%UTS/decade for unidirectionl glass reinforced composites (epoxy and vinyl ester) obtained from Demers' [40] data.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-72198-155929en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-72198-155929/en
dc.identifier.urihttp://hdl.handle.net/10919/36924en
dc.publisherVirginia Techen
dc.relation.haspartThesis.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectGlass Compositesen
dc.subjectFatigueen
dc.subjectEnvironmental Effectsen
dc.subjectLattice Green's Functionen
dc.subjectCreep Ruptureen
dc.subjectFiber Bundleen
dc.subjectLocal Load Sharingen
dc.titleSimulation of Fatigue Performance & Creep Rupture of Glass-Reinforced Polymeric Composites for Infrastructure Applicationsen
dc.typeThesisen
thesis.degree.disciplineEngineering Science and Mechanicsen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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