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dc.contributor.advisorLindsey, G.H.
dc.contributor.authorKapernick, Robert Edwin
dc.dateDecember 1973
dc.date.accessioned2012-11-13T23:51:09Z
dc.date.available2012-11-13T23:51:09Z
dc.date.issued1973-12
dc.identifier.urihttp://hdl.handle.net/10945/16600
dc.description.abstractExperimental studies were conducted on unfilled viscoelastic materials to evaluate the fracture postulate which states that crack velocity is a unique function of stress intensity factor. To do this, fracture characterization tests were conducted for constant load, constant displacement, and constant displacement rate histories. A cyclic study, a more sophisticated application of the constant displacement rate case, was also conducted as a further evaluation of the fracture postulate. The analytical theory used in obtaining viscoelastic stress intensity factors was based upon linear theory and sharp crack geometries. Moderate correlation was obtained among all test cases, notwithstanding the presence of significant specimen strains and finite crack tip radii.
dc.description.urihttp://archive.org/details/evaluationoffrac1094516600
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
dc.subject.lcshAeronauticsen_US
dc.titleEvaluation of the fracture postulate for viscoelastic materials.en_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentAeronautics
dc.subject.authorfractureen_US
dc.subject.authorviscoelastic fractureen_US
dc.subject.authorelastomer fractureen_US
dc.description.serviceLieutenant, United States Navy
etd.thesisdegree.nameM.S. in Aeronautical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineAeronautical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
dc.description.distributionstatementApproved for public release; distribution is unlimited.


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