A concise finite element model for pure bending analysis

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1、InternationalJournalofMechanicalSciences](]]]])]]]–]]]ContentslistsavailableatSciVerseScienceDirectInternationalJournalofMechanicalSciencesjournalhomepage:www.elsevier.com/locate/ijmecsciAconcisefiniteelementmodelforpurebendinganalysisofsimplewirestrandnWen-GuangJia

2、ngSchoolofMechanicalEngineering,YanshanUniversity,Qinhuangdao,Hebei066004,PRChinaarticleinfoabstractArticlehistory:Aconcisefiniteelementmodelforsimplewirestrandunderpurebendingispresentedinthispaper.Received18July2011Accuratebendingsymmetricboundaryconditionhasbeend

3、evelopedandappliedtotheperiodicAccepted6September2011artificialcross-sectionalendboundariesofthewirestrandfiniteelementmodel.Toachievebetteranalysisaccuracy,fullthree-dimensionalsolidelementswereusedforstructuraldiscretization.FortheKeywords:globalbehaviourofthewires

4、trand,i.e.bendingmomentvs.bendingcurvature,thefiniteelementWirestrandresultsshowedgoodagreementwiththeanalyticalelasticstrandmodelofCostello(TheoryofwireBendinganalysisrope,2nded.NewYork:Springer-Verlag;1997)inelasticloadingregime.Furthermore,thefiniteBendingsymmetry

5、elementmodelcanpredictthedetailedprogressivenonlinearplasticbehaviourofthewirestrand.Accurateboundarycondition&2011ElsevierLtd.Allrightsreserved.Finiteelementmodel1.Introductionbendingloadbasedonasmallrepetitivelengthofthewiregeometricmodeltobeperformed.Spiralwires

6、trandsandoverheadelectricalconductorsareexamplesofhelicalwireassemblies.Theycomprisegroupsofwiresspunhelicallytogetherinaregulargeometricpatterntoforman2.Extractionofthemodelintegralunittoprovideaxialstrengthandstiffness.Itiswellknownthatamajoradvantageofsuchelemen

7、tsistheircapacitytosupportInthispaperweconsiderasimplestraightwirestrandconsistinglargeaxialloadswithcomparativelysmallbendingortorsionalofacentralcorewiresurroundedinasymmetricalwaybymhelicalstiffness.Theuseofthesehelicalwoundwiresconstitutesawidewires(m¼6inthispa

8、per)asshowninFig.1(a).Thetransverseclassofimportantengineeringcomponents.cross-sectionsofthecoreandofeachofthesurroundingwiresareThebehaviourofth