A novel finite element model for single-layered wire strand

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1、J.Cent.SouthUniv.(2013)20:1767−1771DOI:10.1007/s11771-013-1670-0Anovelfiniteelementmodelforsingle-layeredwirestrand1,21,2ZHOUWei(周伟),TIANHong-qi(田红旗)1.KeyLaboratoryofTrafficSafetyonTrackofMinistryofEducation(CentralSouthUniversity),Changsha410075,China;2.SchoolofTraffic&TransportationEngineering,

2、CentralSouthUniversity,Changsha410075,China©CentralSouthUniversityPressandSpringer-VerlagBerlinHeidelberg2013Abstract:Anewfiniteelementmodelforsingle-layeredstrandwasinvestigatedforaccurateandefficientmechanicalbehavioranalysis.Mathematicalmodelwascreatedbysectionalpath-nodessweepinganddynamicnod

3、e-beammapping.Geometricrelationsbetweennodesincentercorewireandhelicalwireswerededucedintensionandbendingincorporatingmaterialelasticitytheoryanddeformationgeometricalcompatibility.BasedonTimoshenkobeamtheory,strandofapitchlengthwasmodeledwithspecificmaterial,geometricparametersandsynthesizedcons

4、traintequationsdefinedinANSYSsoftware,andpredeterminedloadcaseswereperformed.TheobtainedresultsshowthatdiscrepanciesbetweensuggestedmethodandCostellotheorydonotexceed1.51%intensionand6.21%inbending,whichverifiesthecorrectnessandaccuracyofthesuggestedfiniteelementmodelinpredictingmechanicalbehavio

5、rofsingle-layeredwirestrand.Keywords:wirestrand;finiteelementanalysis;nodalconstraintequation;geometricalcompatibility;Timoshenkobeamtheoryinvestigatedtheelasticbehaviorofseven-wirestrand1Introductionsubjectedtostaticaxialloadswithvaluesfromthe3Dfiniteelementmodeling.SatisfactoryestimationsoftheW

6、irestrandhasbeenwidelyusedincountlessfieldselasticstiffnessconstantsshowedthatthe3DFEmodelrangingfromhighways,railwaystohydro-junctioncanbeusedasareferenceforcablebehavior.projects.BecauseofitsgreatabilitytoresistrelativelyGHOREISHIetal[7−8]analyzedtheglobalelasticlargeaxialloadscomparedtobending

7、andtorsion,itbehaviorofafibrousstructureconsistingof6helicoidaloftenfindsimportantengineeringapplicationsinanchorstrandsaroundacentralcore.Strandsweredescribedastensilecomponents,railwaycatenarywires,largehoistKirchhof