Abaqus Analysis User’s Manual Abaqus 6.12 Analysis User’s Manual Volume IV: Elements Abaqus ID: Printed on: Abaqus Analysis User’s Manual Volume IV Abaqus ID: 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,2012 Abaqus,the3DSlogo,SIMULIA,CATIA,andUnifiedFEAaretrademarksorregisteredtrademarksofDassaultSystèmesoritssubsidiariesintheUnited Statesand/orothercountries. Othercompany,product,andservicenamesmaybetrademarksorservicemarksoftheirrespectiveowners. Foradditionalinformationconcerning trademarks,copyrights,andlicenses,seetheLegalNoticesintheAbaqus6.12InstallationandLicensingGuide. Abaqus ID: 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] MayfieldHeights,OH,Tel:+12163781070,[email protected] Mason,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:+39023343061,[email protected] Japan Tokyo,Tel:+81354426302,[email protected] Osaka,Tel:+81677302703,[email protected] Korea Mapo-Gu,Seoul,Tel:+8227856707/8,[email protected] LatinAmerica PuertoMadero,BuenosAires,Tel:+541143128700,[email protected] Scandinavia Stockholm,Sweden,Tel:+46868430450,[email protected] UnitedKingdom Warrington,Tel:+441925830900,[email protected] AuthorizedSupportCenters Argentina SMARTtechSudamericaSRL,BuenosAires,Tel:+541147172717 KBEngineering,BuenosAires,Tel:+541143267542 SolaerIngeniería,BuenosAires,Tel:+542214891738 Brazil SMARTtechMecânica,SaoPaulo-SP,Tel:+551131683388 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 WorleyParsonsServicesSdn.Bhd.,KualaLumpur,Tel:+60320399000,[email protected] Mexico Kimeca.NETSAdeCV,Mexico,Tel:+525524592635 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 WorleyParsonsPteLtd.,Singapore,Tel:+6567358444,[email protected] SouthAfrica FiniteElementAnalysisServices(Pty)Ltd.,Parklands,Tel:+27215566462,[email protected] Spain&Portugal PrincipiaIngenierosConsultores,S.A.,Madrid,Tel:+34912091482,[email protected] Abaqus ID: Printed on: Taiwan SimutechSolutionCorporation,Taipei,R.O.C.,Tel:+886225079550,[email protected] Thailand WorleyParsonsPteLtd.,Singapore,Tel:+6567358444,[email protected] Turkey A-ZtechLtd.,Istanbul,Tel:+902163618850,[email protected] Completecontactinformationisavailableathttp://www.simulia.com/locations/locations.html. Abaqus ID: 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,pleasementionitsothatwecanquerythedatabasetoseewhatthelatestactionhasbeen. Many questions about Abaqus can also be answered by visiting the Products page and the Support page at www.simulia.com. Anonymous ftp site To facilitate data transfer with SIMULIA,an anonymous ftp account is available atftp.simulia.com. Loginasuseranonymous,andtypeyoure-mailaddressasyourpassword. Contactsupportbeforeplacing files on the site. Training All offices and representatives offer regularly scheduledpublic training classes. The courses are 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 that any enhancement requests you make are considered for future releases. If you wish to makeasuggestionabouttheserviceorproducts,refertowww.simulia.com. Complaintsshouldbemadeby contactingyourlocalofficeorthroughwww.simulia.combyvisitingtheQualityAssurancesectionofthe Support page. Abaqus ID: 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 Adjustingnodalcoordinates 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: Fri February 3 -- 18:01:12 2012 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 SIMULIACo-SimulationEnginecontrollerexecution 3.2.3 Abaqus/Standard,Abaqus/Explicit,andAbaqus/CFDco-simulationexecution 3.2.4 Abaqus/CAEexecution 3.2.5 Abaqus/Viewerexecution 3.2.6 Python execution 3.2.7 Parametric studies 3.2.8 Abaqus documentation 3.2.9 Licensing utilities 3.2.10 ASCIItranslationofresults(.fil)files 3.2.11 Joiningresults (.fil)files 3.2.12 Queryingthekeyword/problem database 3.2.13 ii Abaqus ID:usb-toc Printed on: Fri February 3 -- 18:01:12 2012 CONTENTS Fetchingsampleinputfiles 3.2.14 Makinguser-definedexecutablesandsubroutines 3.2.15 Inputfileandoutputdatabaseupgradeutility 3.2.16 Generatingoutputdatabasereports 3.2.17 Joiningoutputdatabase(.odb)filesfromrestartedanalyses 3.2.18 Combiningoutputfrom substructures 3.2.19 Combiningdatafrommultipleoutputdatabases 3.2.20 Networkoutputdatabasefileconnector 3.2.21 Mappingthermalandmagneticloads 3.2.22 Fixedformatconversionutility 3.2.23 TranslatingNastranbulkdatafilestoAbaqusinputfiles 3.2.24 TranslatingAbaqusfilestoNastranbulkdatafiles 3.2.25 TranslatingANSYSinputfilestoAbaqusinputfiles 3.2.26 TranslatingPAM-CRASHinputfilestopartialAbaqusinputfiles 3.2.27 TranslatingRADIOSSinputfilestopartialAbaqusinputfiles 3.2.28 TranslatingAbaqusoutputdatabasefilestoNastranOutput2resultsfiles 3.2.29 TranslatingLS-DYNAdatafilestoAbaqusinputfiles 3.2.30 ExchangingAbaqusdatawithZAERO 3.2.31 EncryptinganddecryptingAbaqusinputdata 3.2.32 Jobexecutioncontrol 3.2.33 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 iii Abaqus ID:usb-toc Printed on: Fri February 3 -- 18:01:12 2012
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