Publication:
Heat transfer, thermal stress and failure analyses in a TiB2 gas turbine stator blade

dc.contributor.coauthorVaferi, Kourosh
dc.contributor.coauthorNekahi, Sahar
dc.contributor.coauthorVajdi, Mohammad
dc.contributor.coauthorMoghanlou, Farhad Sadegh
dc.contributor.coauthorShokouhimehr, Mohammadreza
dc.contributor.coauthorSha, Jianjun
dc.contributor.coauthorAsl, Mehdi Shahedi
dc.contributor.departmentKUYTAM (Koç University Surface Science and Technology Center)
dc.contributor.kuauthorMotallebzadeh, Amir
dc.contributor.schoolcollegeinstituteResearch Center
dc.date.accessioned2024-11-10T00:01:33Z
dc.date.issued2019
dc.description.abstractGas turbine stator blades do not experience centrifugal force contrary to the rotor blades; but they are exposed to high-temperature combustion gases causing thermal stresses. In the present work, a series of numerical simulations were carried out to clarify the feasibility of TiB2 utilization as an appropriate material for gas turbine stator blades. The governing equations of heat transfer and solid mechanics were discretized by the finite element method and solved using Comsol Multiphysics software. The boundary conditions were applied, and temperature, displacement and maximum principle stress were obtained. The results showed that using ceramics such as TiB2 instead of conventional alloys can enhance the maximum displacement. Temperature distribution in the blade is more uniform than that of alloys, and consequently, the thermal stresses are reduced. The TiB2 can withstand the applied stresses according to the Coulomb-Mohr theory with a safety factor of 2.4.
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.issue15
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.volume45
dc.identifier.doi10.1016/j.ceramint.2019.06.184
dc.identifier.eissn1873-3956
dc.identifier.issn0272-8842
dc.identifier.quartileQ1
dc.identifier.scopus2-s2.0-85067672663
dc.identifier.urihttps://doi.org/10.1016/j.ceramint.2019.06.184
dc.identifier.urihttps://hdl.handle.net/20.500.14288/15975
dc.identifier.wos483454200142
dc.keywordsTitanium diboride
dc.keywordsPrinciple stresses
dc.keywordsGas turbine blade
dc.keywordsBrittle material
dc.keywordsCoulomb-mohr theory
dc.keywordsGraphite nano-flakes
dc.keywordsMechanical-properties
dc.keywordsFractographical characterization
dc.keywordsMicrostructural development
dc.keywordsParticle-size
dc.keywordsPlasma
dc.keywordsComposites
dc.keywordsTemperature
dc.keywordsZrb2
dc.keywordsDensification
dc.language.isoeng
dc.publisherElsevier Sci Ltd
dc.relation.ispartofCeramics International
dc.subjectMaterials science
dc.subjectCeramics
dc.titleHeat transfer, thermal stress and failure analyses in a TiB2 gas turbine stator blade
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorMotallebzadeh, Amir
local.publication.orgunit1Research Center
local.publication.orgunit2KUYTAM (Koç University Surface Science and Technology Center)
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