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dc.contributor.advisorJoshi, Yogendra.
dc.contributor.authorSedy, Eugene B.
dc.dateMarch 1990
dc.date.accessioned2013-12-16T23:09:54Z
dc.date.available2013-12-16T23:09:54Z
dc.date.issued1990
dc.description.abstractA three dimensional transient computational model of heat transfer are welding is generalized, and then validated by comparison to Rosenthal's solution for moving point sources of heat. The current version of the code allows much greater flexibility in the specification of the thermal input from the arc. The resulting surface temperature profiles and fusion zone shapes are compared to those measured experimentally for several input power levels ofr autogenous gas tungsten arc welding. Arc efficiency is experimentally determined using change of phase of a liquid fluorocarbon. The model is shown to be useful for modeling autogenous welding of thick plates. Weld seam misalignment and surface flaw detection are shown to be possible ahead of hte arch with accurate surface temperature detection methods. The potential of the model are creating a database of fusion and heat zone sizes, temperature profiles, and coding rates for various materials, processes, and power levels is indicated.en_US
dc.description.urihttp://archive.org/details/validationofcomp1094537996
dc.format.extentvii, 50 p.: ill.en_US
dc.language.isoen_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.titleValidation of a computational model for autogenous arc weldingen_US
dc.typeThesisen_US
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentMechanical Engineering
dc.subject.authorWeldingen_US
dc.subject.authorarcen_US
dc.subject.authorcomputeren_US
dc.subject.authormodelingen_US
dc.subject.authorheat transferen_US
dc.subject.authorfusion zoneen_US
dc.subject.authorMetallurgyen_US
dc.subject.authorMetallographyen_US
dc.description.serviceLieutenant, United States Navyen_US
etd.thesisdegree.nameM.S. in Mechanical Engineeringen_US
etd.thesisdegree.nameDegree of Mechanical Engineeren_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.levelProfessional Degreeen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
dc.description.distributionstatementApproved for public release; distribution is unlimited.


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