Experimental method of analyzing stress intensity factors and singularity order in rocket motor geometry

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dc.contributor.authorChe-Way, Changen
dc.contributor.committeechairSmith, Charles W.en
dc.contributor.committeechairCzarnek, R.en
dc.contributor.committeememberPost, Daviden
dc.contributor.committeememberMorton, Johnen
dc.contributor.committeememberPlaut, Raymond H.en
dc.contributor.departmentEngineering Mechanicsen
dc.date.accessioned2014-03-14T21:18:57Zen
dc.date.adate2005-09-16en
dc.date.available2014-03-14T21:18:57Zen
dc.date.issued1990en
dc.date.rdate2005-09-16en
dc.date.sdate2005-09-16en
dc.description.abstractA series of frozen stress experiments were conducted on surface flaws of varying aspect ratios in pressurized cylinder with star-shaped cutout in order to study the stress intensity factor distribution along the flaw border and to estimate the loss of the inverse square root singularity when the crack border intersects the inner star surface at right angles. By applying a refined optical method, the photoelastic data are converted into classical stress intensity factors resulting from the three dimensional stress state existing at the inner surface and compared with a numerical analysis to indicate the nearly uniform distribution of the stress intensity factor along the crack border. Based upon this result a two dimensional weight function approach is demonstrated to yield accurate values of the maximum stress intensity factor for the motor grain test geometry.en
dc.description.degreePh. D.en
dc.format.extentxi, 140 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-09162005-115030en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-09162005-115030/en
dc.identifier.urihttp://hdl.handle.net/10919/39373en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V856_1990.C549.pdfen
dc.relation.isformatofOCLC# 23657990en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1990.C549en
dc.subject.lcshRocket engines -- Researchen
dc.titleExperimental method of analyzing stress intensity factors and singularity order in rocket motor geometryen
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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