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Abaqus Analysis User’s Manual Abaqus 6.11 Analysis User’s Manual Volume V: Prescribed Conditions, Constraints & Interactions AbaqusVersion6.11ID: Printed on: Abaqus Analysis User’s Manual Volume V AbaqusVersion6.11ID: Printed on: Legal Notices CAUTION:ThisdocumentationisintendedforqualifieduserswhowillexercisesoundengineeringjudgmentandexpertiseintheuseoftheAbaqus Software.TheAbaqusSoftwareisinherentlycomplex,andtheexamplesandproceduresinthisdocumentationarenotintendedtobeexhaustiveortoapply toanyparticularsituation.Usersarecautionedtosatisfythemselvesastotheaccuracyandresultsoftheiranalyses. DassaultSystèmesanditssubsidiaries,includingDassaultSystèmesSimuliaCorp.,shallnotberesponsiblefortheaccuracyorusefulnessofanyanalysis performedusingtheAbaqusSoftwareortheprocedures,examples,orexplanationsinthisdocumentation.DassaultSystèmesanditssubsidiariesshallnot beresponsiblefortheconsequencesofanyerrorsoromissionsthatmayappearinthisdocumentation. TheAbaqusSoftwareisavailableonlyunderlicensefromDassaultSystèmesoritssubsidiaryandmaybeusedorreproducedonlyinaccordancewiththe termsofsuchlicense.Thisdocumentationissubjecttothetermsandconditionsofeitherthesoftwarelicenseagreementsignedbytheparties,or,absent suchanagreement,thethencurrentsoftwarelicenseagreementtowhichthedocumentationrelates. Thisdocumentationandthesoftwaredescribedinthisdocumentationaresubjecttochangewithoutpriornotice. NopartofthisdocumentationmaybereproducedordistributedinanyformwithoutpriorwrittenpermissionofDassaultSystèmesoritssubsidiary. TheAbaqusSoftwareisaproductofDassaultSystèmesSimuliaCorp.,Providence,RI,USA. ©DassaultSystèmes,2011 Abaqus,the3DSlogo,SIMULIA,CATIA,andUnifiedFEAaretrademarksorregisteredtrademarksofDassaultSystèmesoritssubsidiariesintheUnited Statesand/orothercountries. Othercompany,product,andservicenamesmaybetrademarksorservicemarksoftheirrespectiveowners. Foradditionalinformationconcerning trademarks,copyrights,andlicenses,seetheLegalNoticesintheAbaqus6.11ReleaseNotes. AbaqusVersion6.11ID: Printed on: Locations SIMULIAWorldwideHeadquarters RisingSunMills,166ValleyStreet,Providence,RI02909–2499,Tel:+14012764400, Fax:+14012764408,[email protected],http://www.simulia.com SIMULIAEuropeanHeadquarters Stationsplein8-K,6221BTMaastricht,TheNetherlands,Tel:+31437999084, Fax:+31437999306,[email protected] DassaultSystèmes’CentersofSimulationExcellence UnitedStates Fremont,CA,Tel:+15107945891,[email protected] WestLafayette,IN,Tel:+17654971373,[email protected] Northville,MI,Tel:+12483494669,[email protected] Woodbury,MN,Tel:+16124249044,[email protected] Beachwood,OH,Tel:+12163781070,[email protected] WestChester,OH,Tel:+15132751430,[email protected] Warwick,RI,Tel:+14017393637,[email protected] Lewisville,TX,Tel:+19722216500,[email protected] Australia RichmondVIC,Tel:+61394212900,[email protected] Austria Vienna,Tel:+43122707200,[email protected] Benelux Maarssen,TheNetherlands,Tel:+31346585710,[email protected] Canada Toronto,ON,Tel:+14164022219,[email protected] China Beijing,P.R.China,Tel:+861065362288,[email protected] Shanghai,P.R.China,Tel:+862138568000,[email protected] Finland Espoo,Tel:+358409022973,[email protected] France VelizyVillacoublayCedex,Tel:+33161627272,[email protected] Germany Aachen,Tel:+49241474010,[email protected] Munich,Tel:+498954348770,[email protected] India Chennai,TamilNadu,Tel:+914443443000,[email protected] Italy LainateMI,Tel:+3902334306150,[email protected] Japan Tokyo,Tel:+81354426300,[email protected] Osaka,Tel:+81677302703,[email protected] Yokohama-shi,Kanagawa,Tel:+81454709381,[email protected] Korea Mapo-Gu,Seoul,Tel:+8227856707/8,[email protected] LatinAmerica PuertoMadero,BuenosAires,Tel:+541143128700,[email protected] Scandinavia Västerås,Sweden,Tel:+4621150870,[email protected] UnitedKingdom Warrington,Tel:+441925830900,[email protected] AuthorizedSupportCenters Czech&SlovakRepublics Synermas.r.o.,Psáry,Prague-West,Tel:+420603145769,[email protected] Greece 3DimensionalDataSystems,Crete,Tel:+302821040012,[email protected] Israel ADCOM,Givataim,Tel:+97237325311,[email protected] Malaysia WorleyParsonsAdvancedAnalysis,KualaLumpur,Tel:+60320399000,[email protected] NewZealand MatrixAppliedComputingLtd.,Auckland,Tel:+6496231223,[email protected] Poland BudSoftSp.zo.o.,Poznań,Tel:+48618508466,[email protected] Russia,Belarus&Ukraine TESISLtd.,Moscow,Tel:+74956124422,[email protected] Singapore WorleyParsonsAdvancedAnalysis,Singapore,Tel:+6567358444,[email protected] SouthAfrica FiniteElementAnalysisServices(Pty)Ltd.,Parklands,Tel:+27215566462,[email protected] Spain&Portugal PrincipiaIngenierosConsultores,S.A.,Madrid,Tel:+34912091482,[email protected] Taiwan SimutechSolutionCorporation,Taipei,R.O.C.,Tel:+886225079550,[email protected] Thailand WorleyParsonsAdvancedAnalysis,Singapore,Tel:+6567358444,[email protected] Turkey A-ZtechLtd.,Istanbul,Tel:+902163618850,[email protected] Completecontactinformationisavailableathttp://www.simulia.com/locations/locations.html. AbaqusVersion6.11ID: Printed on: Preface ThissectionlistsvariousresourcesthatareavailableforhelpwithusingAbaqusUnifiedFEAsoftware. Support Both technical engineering support (for problems with creating a model or performing an analysis) and systemssupport(forinstallation,licensing, andhardware-relatedproblems)forAbaqusareofferedthrough anetworkoflocalsupportoffices. RegionalcontactinformationislistedinthefrontofeachAbaqusmanual andisaccessiblefromtheLocationspageatwww.simulia.com. Support for SIMULIA products SIMULIA provides a knowledge database of answers and solutions to questions that we have answered, as well as guidelines on how to use Abaqus, SIMULIA Scenario Definition, Isight, and other SIMULIA products. You can also submit new requests for support. All support incidents are tracked. If you contact usbymeansoutsidethesystemtodiscussanexistingsupportproblemandyouknowtheincidentorsupport requestnumber,pleasementionitsothatwecanconsultthedatabasetoseewhatthelatestactionhasbeen. Many questions about Abaqus can also be answered by visiting the Products page and the Support page atwww.simulia.com. Anonymous ftp site To facilitate data transfer with SIMULIA, an anonymous ftp account is available on the computer ftp.simulia.com. Loginasuseranonymous,andtypeyoure-mailaddressasyourpassword. Contactsupport before placing filesonthesite. Training Alloffices and representativesoffer regularly scheduled public training classes. The coursesare offered in a traditional classroom form and via the Web. We also provide training seminars at customer sites. All training classes and seminars include workshops to provide as much practical experience with Abaqus as possible. Forascheduleanddescriptionsofavailableclasses,seewww.simulia.comorcallyourlocaloffice or representative. Feedback WewelcomeanysuggestionsforimprovementstoAbaqussoftware,thesupportprogram,ordocumentation. We will ensure thatany enhancement requestsyou make are considered for future releases. If you wish to makeasuggestionabouttheserviceorproducts,refertowww.simulia.com. Complaintsshouldbeaddressed bycontactingyourlocalofficeorthroughwww.simulia.combyvisitingtheQualityAssurancesectionof the Support page. AbaqusVersion6.11ID: Printed on: CONTENTS Contents Volume I PART I INTRODUCTION,SPATIALMODELING,ANDEXECUTION 1. Introduction Introduction: general 1.1.1 Abaqus syntax and conventions Inputsyntax rules 1.2.1 Conventions 1.2.2 Abaqus model definition DefiningamodelinAbaqus 1.3.1 Parametric modeling Parametric input 1.4.1 2. Spatial Modeling Node definition Node definition 2.1.1 Parametricshapevariation 2.1.2 Nodalthicknesses 2.1.3 Normaldefinitions atnodes 2.1.4 Transformedcoordinatesystems 2.1.5 Adjustnodalcoordinate 2.1.6 Element definition Elementdefinition 2.2.1 Elementfoundations 2.2.2 Definingreinforcement 2.2.3 Definingrebarasanelementproperty 2.2.4 Orientations 2.2.5 Surface definition Surfaces: overview 2.3.1 Element-basedsurfacedefinition 2.3.2 Node-basedsurfacedefinition 2.3.3 Analyticalrigidsurfacedefinition 2.3.4 i Abaqus ID:usb-toc Printed on: Tue March 22 -- 12:17:16 2011 CONTENTS Euleriansurfacedefinition 2.3.5 Operatingonsurfaces 2.3.6 Rigid body definition Rigidbody definition 2.4.1 Integrated outputsection definition Integratedoutputsectiondefinition 2.5.1 Mass adjustment Adjustand/orredistributemassofanelementset 2.6.1 Nonstructural mass definition Nonstructuralmassdefinition 2.7.1 Distribution definition Distribution definition 2.8.1 Display body definition Displaybodydefinition 2.9.1 Assembly definition Definingan assembly 2.10.1 Matrix definition Defining matrices 2.11.1 3. Job Execution Execution procedures: overview ExecutionprocedureforAbaqus: overview 3.1.1 Execution procedures Obtaining information 3.2.1 Abaqus/Standard,Abaqus/Explicit,andAbaqus/CFDexecution 3.2.2 Abaqus/Standard,Abaqus/Explicit,andAbaqus/CFDco-simulationexecution 3.2.3 Abaqus/CAEexecution 3.2.4 Abaqus/Viewerexecution 3.2.5 Python execution 3.2.6 Parametric studies 3.2.7 Abaqus documentation 3.2.8 Licensing utilities 3.2.9 ASCIItranslationofresults(.fil)files 3.2.10 Joiningresults (.fil)files 3.2.11 Queryingthekeyword/problem database 3.2.12 Fetchingsampleinputfiles 3.2.13 ii Abaqus ID:usb-toc Printed on: Tue March 22 -- 12:17:16 2011 CONTENTS Makinguser-definedexecutablesandsubroutines 3.2.14 Inputfileandoutputdatabaseupgradeutility 3.2.15 Generatingoutputdatabasereports 3.2.16 Joiningoutputdatabase(.odb)filesfromrestartedanalyses 3.2.17 Combiningoutputfrom substructures 3.2.18 Combiningdatafrommultipleoutputdatabases 3.2.19 Networkoutputdatabasefileconnector 3.2.20 Mappingthermalandmagneticloads 3.2.21 Fixedformatconversionutility 3.2.22 TranslatingNastranbulkdatafilestoAbaqusinputfiles 3.2.23 TranslatingAbaqusfilestoNastranbulkdatafiles 3.2.24 TranslatingANSYSinputfilestoAbaqusinputfiles 3.2.25 TranslatingPAM-CRASHinputfilestopartialAbaqusinputfiles 3.2.26 TranslatingRADIOSSinputfilestopartialAbaqusinputfiles 3.2.27 TranslatingAbaqusoutputdatabasefilestoNastranOutput2resultsfiles 3.2.28 ExchangingAbaqusdatawithZAERO 3.2.29 EncryptinganddecryptingAbaqusinputdata 3.2.30 Jobexecutioncontrol 3.2.31 Environment file settings UsingtheAbaqusenvironmentsettings 3.3.1 Managing memory and diskresources ManagingmemoryanddiskuseinAbaqus 3.4.1 Parallel execution Parallelexecution: overview 3.5.1 ParallelexecutioninAbaqus/Standard 3.5.2 ParallelexecutioninAbaqus/Explicit 3.5.3 ParallelexecutioninAbaqus/CFD 3.5.4 File extension definitions FileextensionsusedbyAbaqus 3.6.1 FORTRAN unit numbers FORTRANunitnumbersusedbyAbaqus 3.7.1 PART II OUTPUT 4. Output Output 4.1.1 Outputtothedataandresultsfiles 4.1.2 iii Abaqus ID:usb-toc Printed on: Tue March 22 -- 12:17:16 2011 CONTENTS Outputtothe outputdatabase 4.1.3 Errorindicatoroutput 4.1.4 Output variables Abaqus/Standardoutputvariableidentifiers 4.2.1 Abaqus/Explicitoutputvariableidentifiers 4.2.2 Abaqus/CFDoutputvariableidentifiers 4.2.3 The postprocessing calculator Thepostprocessingcalculator 4.3.1 5. File Output Format Accessing the results file Accessingtheresultsfile: overview 5.1.1 Resultsfile outputformat 5.1.2 Accessingtheresultsfileinformation 5.1.3 Utilityroutinesforaccessingtheresultsfile 5.1.4 OI.1 Abaqus/Standard OutputVariableIndex OI.2 Abaqus/Explicit OutputVariableIndex OI.3 Abaqus/CFD OutputVariableIndex iv Abaqus ID:usb-toc Printed on: Tue March 22 -- 12:17:16 2011

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Abaqus, the 3DS logo, SIMULIA, CATIA, and Unified FEA are trademarks or registered trademarks of Dassault Systèmes or its subsidiaries in the United. States and/or other type boundary condition to specify zero velocity for degrees of freedom 4 and 5 and a constant angular velocity of for degree o