Getting Started with Abaqus

645 Pages·2008·11.45 MB·English

Getting Started with Abaqus: Interactive Edition
Abaqus ID:
Printed on:

Getting Started with Abaqus
Interactive Edition
Version 6.8
Abaqus ID:
Printed on:
Legal Notices
CAUTION:ThisdocumentationisintendedforqualifieduserswhowillexercisesoundengineeringjudgmentandexpertiseintheuseoftheAbaqus
Software.TheAbaqusSoftwareisinherentlycomplex,andtheexamplesandproceduresinthisdocumentationarenotintendedtobeexhaustiveortoapply
toanyparticularsituation.Usersarecautionedtosatisfythemselvesastotheaccuracyandresultsoftheiranalyses.
DassaultSystèmesanditssubsidiaries,includingDassaultSystèmesSimuliaCorp.,shallnotberesponsiblefortheaccuracyorusefulnessofanyanalysis
performedusingtheAbaqusSoftwareortheprocedures,examples,orexplanationsinthisdocumentation.DassaultSystèmesanditssubsidiariesshallnot
beresponsiblefortheconsequencesofanyerrorsoromissionsthatmayappearinthisdocumentation.
DASSAULT SYSTÈMES AND ITS SUBSIDIARIES DISCLAIM ALL EXPRESS OR IMPLIED REPRESENTATIONS AND WARRANTIES,
INCLUDINGANYIMPLIEDWARRANTYOFMERCHANTABILITYORFITNESSFORAPARTICULARPURPOSEOFTHECONTENTSOF
THISDOCUMENTATION.
INNOEVENTSHALLDASSAULTSYSTÈMES,ITSSUBSIDIARIES,ORTHEIRTHIRD-PARTYPROVIDERSBELIABLEFORANYINDIRECT,
INCIDENTAL, PUNITIVE, SPECIAL, OR CONSEQUENTIAL DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS
OFBUSINESSPROFITS,BUSINESSINTERRUPTION,ORLOSSOFBUSINESSINFORMATION)EVENIFDASSAULTSYSTÈMESORITS
SUBSIDIARYHASBEENADVISEDOFTHEPOSSIBILITYOFSUCHDAMAGES.
TheAbaqusSoftwareisavailableonlyunderlicensefromDassaultSystèmesoritssubsidiaryandmaybeusedorreproducedonlyinaccordancewiththe
termsofsuchlicense.
Thisdocumentationandthesoftwaredescribedinthisdocumentationaresubjecttochangewithoutpriornotice.
NopartofthisdocumentationmaybereproducedordistributedinanyformwithoutpriorwrittenpermissionofDassaultSystèmesoritssubsidiary.
Exportandre-exportoftheAbaqusSoftwareandthisdocumentationissubjecttoUnitedStatesandotherexportcontrolregulations.Eachuserisresponsible
forcompliancewithapplicableexportregulations.
TheAbaqusSoftwareisaproductofDassaultSystèmesSimuliaCorp.,Providence,RI,USA.
©DassaultSystèmes,2008
PrintedintheUnitedStatesofAmerica.
U.S.GOVERNMENTUSERS:TheAbaqusSoftwareanditsdocumentationare“commercialitems,”specifically“commercialcomputersoftware”and
“commercialcomputersoftwaredocumentation”and,consistentwithFAR12.212andDFARS227.7202,asapplicable,areprovidedwithrestrictedrights
inaccordancewithlicenseterms.
Abaqus,the3DSlogo,SIMULIA,andCATIAaretrademarksorregisteredtrademarksofDassaultSystèmesoritssubsidiariesintheUnitedStatesand/or
othercountries.
Other company, product, and service names may be trademarks or service marks of their respective owners. For additional information
concerning trademarks, copyrights, and licenses, see the Legal Notices in the Abaqus Version 6.8 Release Notes and the notices at:
http://www.simulia.com/products/products_legal.html.
Abaqus ID:
Printed on:
Offices and Representatives
SIMULIAWorldwideHeadquarters RisingSunMills,166ValleyStreet,Providence,RI02909–2499,Tel:[phone],
Fax:[phone],[email protected],http://www.simulia.com
SIMULIAEuropeanHeadquarters GaetanoMartinolaan95,P.O.Box1637,6201BPMaastricht,TheNetherlands,Tel:[phone],
Fax:[phone],[email protected]
Sales,Support,andServices
NorthAmerica Central,WestLafayette,IN,Tel:[phone],[email protected]
Central,Cincinnati,WestChester,OH,Tel:[phone],[email protected]
Central,Minneapolis/St.Paul,Woodbury,MN,Tel:[phone],[email protected]
East,Warwick,RI,Tel:[phone],[email protected]
Erie,Beachwood,OH,Tel:[phone],[email protected]
GreatLakes,Northville,MI,Tel:[phone],[email protected]
South,Lewisville,TX,Tel:[phone],[email protected]
West,Fremont,CA,Tel:[phone],[email protected]
Argentina DassaultSystèmesLatinAmerica,BuenosAires,Tel:[phone],[email protected]
Australia DassaultSystèmesAustraliaPty.Ltd.,RichmondVIC,Tel:[phone],[email protected]
Austria Vienna,Tel:[phone],[email protected]
Benelux Huizen,TheNetherlands,Tel:[phone],[email protected]
Brazil SMARTtechMecânica,SãoPauloSP,Tel:[phone],[email protected]
SMARTtechMecânica,RiodeJaneiroRJ,Tel:[phone],[email protected]
CzechRepublic Synermas.r.o.,Psáry,Tel:[phone],[email protected]
France Versailles,Tel:[phone],[email protected]
Germany Aachen,Tel:[phone],[email protected]
München,Tel:[phone],[email protected]
India Teynampet,Chennai,Tel:[phone],[email protected]
Israel ADCOM,Givataim,Tel:[phone],[email protected]
Italy Italy,Milano,Tel:[phone],[email protected]
Japan Tokyo,Tel:[phone],[email protected]
Osaka,Tel:[phone],[email protected]
Korea Mapo-Gu,Seoul,Tel:[phone],[email protected]
Malaysia WorleyParsonsAdvancedAnalysis,KualaLumpur,Tel:[phone],[email protected]
NewZealand MatrixAppliedComputingLtd.,Auckland,Tel:[phone],[email protected]
Poland BudSoftSp.zo.o.,Sw.Marcin,Tel:[phone],[email protected]
Russia,Belarus&Ukraine TESISLtd.,Moscow,Russia,Tel:[phone],[email protected]
Scandinavia Västerås,Sweden,Tel:[phone],[email protected]
Singapore WorleyParsonsAdvancedAnalysis,Singapore,Tel:[phone],[email protected]
SouthAfrica FiniteElementAnalysisServices(Pty)Ltd.,Mowbray,Tel:[phone],[email protected]
Spain PrincipiaIngenierosConsultores,S.A.,Madrid,Tel:[phone],[email protected]
Taiwan APIC,Taipei,Tel:[phone],[email protected]
Thailand WorleyParsonsAdvancedAnalysisGroup,Bangkok,Tel:[phone],[email protected]
Turkey A-ZtechLtd.,Istanbul,Tel:[phone],[email protected]
UnitedKingdom Sevenoaks,Kent,Tel:[phone],[email protected]
Warrington,Tel:[phone],[email protected]
Abaqus ID:
Printed on:
SalesOnly
NorthAmerica GreatLakesCanada,Toronto,ON,Canada,Tel:[phone],[email protected]
East,Mid-Atlantic,ForestHill,MD,Tel:[phone],[email protected]
South,Southeast,Acworth,GA,Tel:[phone],[email protected]
West,SouthernCAandAZ,Tustin,CA,Tel:[phone],[email protected]
West,RockyMountains,Boulder,CO,Tel:[phone],[email protected]
Finland Vantaa,Tel:[phone],info@simulia.fi
India NewDelhi,Tel:[phone],[email protected]
Pune,Tel:[phone],[email protected]
ChinaRepresentativeOffices
China ChaoyangDistrict,Beijing,P.R.China,Tel:[phone],[email protected]
RudongDistrict,Shanghai,P.R.China,Tel:[phone],[email protected]
Completecontactinformationisavailableathttp://www.simulia.com/about/locations.html.
Abaqus ID:
Printed on:
CONTENTS
Contents
1. Introduction
TheAbaqusproducts 1.1
GettingstartedwithAbaqus 1.2
Abaqus documentation 1.3
Getting help 1.4
Support 1.5
Aquickreviewofthefiniteelementmethod 1.6
2. Abaqus Basics
ComponentsofanAbaqusanalysismodel 2.1
IntroductiontoAbaqus/CAE 2.2
Example: creatingamodelofanoverheadhoist 2.3
Comparisonofimplicitandexplicitprocedures 2.4
Summary 2.5
3. Finite Elements and Rigid Bodies
Finite elements 3.1
Rigid bodies 3.2
Summary 3.3
4. Using Continuum Elements
Elementformulationandintegration 4.1
Selectingcontinuum elements 4.2
Example: connectinglug 4.3
Meshconvergence 4.4
RelatedAbaqusexamples 4.5
Suggested reading 4.6
Summary 4.7
5. Using Shell Elements
Elementgeometry 5.1
Shellformulation–thickorthin 5.2
Shellmaterialdirections 5.3
Selectingshellelements 5.4
Example: skew plate 5.5
RelatedAbaqusexamples 5.6
v
Abaqus ID:gsa-toc
Printed on: Thu April 10 -- 8:52:52 2008
CONTENTS
Suggested reading 5.7
Summary 5.8
6. Using Beam Elements
Beam cross-sectiongeometry 6.1
Formulationandintegration 6.2
Selectingbeam elements 6.3
Example: cargocrane 6.4
RelatedAbaqusexamples 6.5
Suggested reading 6.6
Summary 6.7
7. Linear Dynamics
Introduction 7.1
Damping 7.2
Element selection 7.3
Meshdesignfordynamics 7.4
Example: cargocraneunderdynamicloading 7.5
Effectofthenumberofmodes 7.6
Effectof damping 7.7
Comparisonwithdirecttimeintegration 7.8
Otherdynamicprocedures 7.9
RelatedAbaqusexamples 7.10
Suggested reading 7.11
Summary 7.12
8. Nonlinearity
Sourcesofnonlinearity 8.1
Thesolutionofnonlinearproblems 8.2
IncludingnonlinearityinanAbaqusanalysis 8.3
Example: nonlinearskewplate 8.4
RelatedAbaqusexamples 8.5
Suggested reading 8.6
Summary 8.7
9. Nonlinear Explicit Dynamics
TypesofproblemssuitedforAbaqus/Explicit 9.1
Explicitdynamicfiniteelementmethods 9.2
Automatictimeincrementationandstability 9.3
Example: stresswavepropagationinabar 9.4
Dampingofdynamicoscillations 9.5
vi
Abaqus ID:gsa-toc
Printed on: Thu April 10 -- 8:52:52 2008
CONTENTS
Energy balance 9.6
Summary 9.7
10. Materials
DefiningmaterialsinAbaqus 10.1
Plasticityinductilemetals 10.2
Selectingelementsforelastic-plasticproblems 10.3
Example: connectinglugwithplasticity 10.4
Example: blastloadingonastiffenedplate 10.5
Hyperelasticity 10.6
Example: axisymmetricmount 10.7
Meshdesignforlargedistortions 10.8
Techniquesforreducingvolumetriclocking 10.9
RelatedAbaqusexamples 10.10
Suggested reading 10.11
Summary 10.12
11. Multiple Step Analysis
Generalanalysisprocedures 11.1
Linearperturbationanalysis 11.2
Example: vibrationofapipingsystem 11.3
Restart analysis 11.4
Example: restartingthepipevibrationanalysis 11.5
RelatedAbaqusexamples 11.6
Summary 11.7
12. Contact
OverviewofcontactcapabilitiesinAbaqus 12.1
Definingsurfaces 12.2
Interactionbetweensurfaces 12.3
DefiningcontactinAbaqus/Standard 12.4
ModelingissuesforrigidsurfacesinAbaqus/Standard 12.5
Abaqus/Standard2-Dexample: formingachannel 12.6
DefiningcontactinAbaqus/Explicit 12.7
ModelingconsiderationsinAbaqus/Explicit 12.8
Abaqus/Explicitexample: circuitboarddroptest 12.9
CompatibilitybetweenAbaqus/StandardandAbaqus/Explicit 12.10
RelatedAbaqusexamples 12.11
Suggested reading 12.12
Summary 12.13
vii
Abaqus ID:gsa-toc
Printed on: Thu April 10 -- 8:52:52 2008
CONTENTS
13. Quasi-StaticAnalysiswithAbaqus/Explicit
Analogyforexplicitdynamics 13.1
Loading rates 13.2
Mass scaling 13.3
Energy balance 13.4
Example: formingachannelinAbaqus/Explicit 13.5
Summary 13.6
A. Example Files
Overheadhoist frame A.1
Connecting lug A.2
Skew plate A.3
Cargo crane A.4
Cargocrane–dynamicloading A.5
Nonlinearskew plate A.6
Stresswavepropagationinabar A.7
Connectinglugwithplasticity A.8
Blastloadingonastiffenedplate A.9
Axisymmetricmount A.10
Vibrationofapipingsystem A.11
Formingachannel A.12
Circuit boarddroptest A.13
B. CreatingandAnalyzingaSimpleModelinAbaqus/CAE
UnderstandingAbaqus/CAEmodules B.1
UnderstandingtheModelTree B.2
Creating a part B.3
Creating a material B.4
Definingandassigningsectionproperties B.5
Assemblingthemodel B.6
Definingyouranalysissteps B.7
Applyingaboundaryconditionandaloadtothemodel B.8
Meshingthemodel B.9
Creatingandsubmittingananalysisjob B.10
Viewingtheresultsofyouranalysis B.11
Summary B.12
C. UsingAdditionalTechniquestoCreateandAnalyzeaModelinAbaqus/CAE
Overview C.1
Creatingthe firsthinge piece C.2
viii
Abaqus ID:gsa-toc
Printed on: Thu April 10 -- 8:52:52 2008