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dc.contributorAndersson, Nils-Eric
dc.contributor.authorRamírez Opisso, Alfred
dc.date.accessioned2014-01-12T11:36:45Z
dc.date.available2014-01-12T11:36:45Z
dc.date.issued2013-09
dc.identifier.urihttp://hdl.handle.net/2099.1/20311
dc.description.abstractThis work studies the behavior of screw fittings in high temperatures (120°C). The screw fittings are casted in AZ91D magnesium alloy (9% Al, 1% Zn). This part is jointed together with an aluminum part and the fastener is a M5 bolt made of steel. These three parts form the model which is simulated using Finite Element Analysis (FEA) procedures. Creep behavior and thermal expansion are included in the simulation. The results show the importance of both phenomena for the stress relaxation. Besides, deformation due to creep is responsible of most of the relaxation found in the AZ91D part. The stresses get reduced up to 40 and 50% in some areas of the magnesium alloy part. However, all the parts remain in contact all the time assuring the usefulness of the model despite the stress reduction.
dc.language.isoeng
dc.publisherUniversitat Politècnica de Catalunya
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Assaig de materials::Assaig de fatiga
dc.subject.lcshScrews
dc.subject.lcshScrew-threads
dc.subject.lcshStrains and stresses
dc.subject.lcshMagnesium alloys -- Fatigue
dc.subject.lcshMaterials at high temperatures -- Testing
dc.titleStress relaxation in screw fittings in cast AZ91D components
dc.typeMaster thesis (pre-Bologna period)
dc.subject.lemacCargols
dc.subject.lemacRosques de cargols
dc.subject.lemacDeformacions i tensions
dc.subject.lemacMagnesi -- Aliatges -- Fatiga
dc.subject.lemacMaterials a altes temperatures -- Proves
dc.rights.accessOpen Access
dc.audience.educationlevelEstudis de primer/segon cicle
dc.audience.mediatorEscola Tècnica Superior d'Enginyeria Industrial de Barcelona
dc.provenanceAquest document conté originàriament altre material i/o programari no inclòs en aquest lloc web
dc.description.mobilityOutgoing


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