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dc.contributor.advisorKwon, Young W.
dc.contributor.authorHall, Benjamin L.
dc.dateJune 2014
dc.date.accessioned2014-08-13T20:17:43Z
dc.date.available2014-08-13T20:17:43Z
dc.date.issued2014-06
dc.identifier.urihttp://hdl.handle.net/10945/42638
dc.descriptionApproved for public release; distribution is unlimiteden_US
dc.description.abstractThe purpose of this thesis was to investigate crack growth behavior in thick stiffened aluminum plates repaired with a single-sided composite patch. A model was developed using finite element analysis that extracted the mode I strain energy release rate (SERR) with use of the Virtual Crack Closure Technique. The dimensions and spacing of the stiffeners were varied to determine their effect on reducing the SERR. This model was also compared to an unstiffened model and one without a composite patch. A tensile load and a bending moment were both applied to the model for various configurations. These results were then used to develop an analytical model that can be used to predict the effectiveness of a patched surface.en_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. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.titleFinite element and analytical analysis of cracks in thick stiffened plates repaired with a single–sided composite patchen_US
dc.typeThesisen_US
dc.contributor.secondreaderDidoszak, Jarema M.
dc.contributor.departmentMechanical and Aerospace Engineering (MAE)
dc.subject.authorcomposite patchen_US
dc.subject.authorstiffening memberen_US
dc.subject.authorfinite elementen_US
dc.description.serviceLieutenant, United States Navyen_US
etd.thesisdegree.nameMaster of Science in Mechanical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineMechanical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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