Matrix-fiber stress transfer in composite materials elasto-plastic model with an interphase layer

dc.contributor.authorLhotellier, Frederic C.en
dc.contributor.committeechairBrinson, Halbert F.en
dc.contributor.committeememberDillard, David A.en
dc.contributor.committeememberWightman, James P.en
dc.contributor.departmentEngineering Science and Mechanicsen
dc.date.accessioned2014-03-14T21:28:36Zen
dc.date.adate2013-02-06en
dc.date.available2014-03-14T21:28:36Zen
dc.date.issued1987-11-15en
dc.date.rdate2013-02-06en
dc.date.sdate2013-02-06en
dc.description.abstractThe matrix-fiber stress transfer in glass/epoxy composite materials was studied using analytical and experimental methods. The mathematical model that was developed calculates the stress fields in the fiber, interphase, and neighboring matrix near a fiber break. This scheme takes into account the elastic-plastic behavior of both the matrix and the interphase, and it includes the treatment of stress concentration near the discontinuities of the fibers. The radius of the fibers and the mechanical properties of the matrix were varied in order to validate the mathematical model. The computed values for the lengths of debonding, plastic deformation, and elastic deformation in the matrix near the fiber tip were confirmed by measurements taken under polarized light on loaded and unloaded single fiber samples. The fiber-fiber interaction was studied experimentally using dog-bone samples that contained seven fibers forming an hexagonal pattern.en
dc.description.degreeMaster of Scienceen
dc.format.extentix, 107 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-02062013-040025en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-02062013-040025/en
dc.identifier.urihttp://hdl.handle.net/10919/40934en
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1987.L521.pdfen
dc.relation.isformatofOCLC# 17730375en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1987.L521en
dc.subject.lcshFibrous composites -- Fatigueen
dc.titleMatrix-fiber stress transfer in composite materials elasto-plastic model with an interphase layeren
dc.typeThesisen
dc.type.dcmitypeTexten
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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