A photoelastic technique for the determination of stress intensity factors

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dc.contributor.authorJolles, Mitchell Iraen
dc.contributor.committeechairSmith, Charles W.en
dc.contributor.committeememberHenneke, Edmund G. IIen
dc.contributor.committeememberLouthan, M. R. Jr.en
dc.contributor.committeememberMcNitt, R. P.en
dc.contributor.committeememberReifsnider, Kenneth L.en
dc.contributor.departmentEngineering Mechanicsen
dc.date.accessioned2014-03-14T20:17:47Zen
dc.date.adate2008-10-30en
dc.date.available2014-03-14T20:17:47Zen
dc.date.issued1976-07-05en
dc.date.rdate2008-10-30en
dc.date.sdate2008-10-30en
dc.description.abstractA technique for obtaining values of the stress intensity factor from photoelastic data for three dimensional cracked body problems is described. The stress intensity determination is accomplished without resorting to stress separation methods through employing an expression for the maximum in-plane shearing stress consisting of a singular term which is related to the stress intensity factor and a constant term which is related to the regular stress field. The technique itself identifies the zone dominated by the singular stresses. The effects of using artificial cracks and a model material which exhibits a Poisson's ratio v = 0.5 are assessed. The application of the technique to a variety of technologically important three dimensional problems is illustrated for Mode I loading and combined Mode I - Mode II loading. The major advantages and limitations of the technique are discussed. Replications of identical test geometries indicate a scatter of the stress intensity factor determination of less than ± 5%. It is concluded that the method is a valid means for the independent determination of values of the stress intensity factor.en
dc.description.degreePh. D.en
dc.format.extent91 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-10302008-120618en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-10302008-120618/en
dc.identifier.urihttp://hdl.handle.net/10919/29406en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V856_1976.J64.pdfen
dc.relation.isformatofOCLC# 08422707en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1976.J64en
dc.subject.lcshPhotoelasticityen
dc.subject.lcshStrength of materialsen
dc.titleA photoelastic technique for the determination of stress intensity factorsen
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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