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Getting Started with Abaqus PDF

530 Pages·2011·10.42 MB·English
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Getting Started with Abaqus: Keywords Edition Abaqus 6.11 Getting Started with Abaqus: Keywords Edition AbaqusID: Printed on: Getting Started with Abaqus Keywords Edition AbaqusID: 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. 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AbaqusID: Printed on: CONTENTS Contents 1. Introduction The Abaqus products 1.1 GettingstartedwithAbaqus 1.2 Abaqus documentation 1.3 Getting help 1.4 Support 1.5 Aquickreviewofthefiniteelementmethod 1.6 Getting Started 1.7 2. Abaqus Basics ComponentsofanAbaqusanalysismodel 2.1 Formatofthe inputfile 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 i Abaqus ID:gsk-toc Printed on: Mon February 28 -- 12:35:22 2011 CONTENTS RelatedAbaqusexamples 5.6 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 Elementselection 7.3 Meshdesignfordynamics 7.4 Example: cargocraneunderdynamicloading 7.5 Effectofthenumberofmodes 7.6 Effectofdamping 7.7 Comparisonwithdirecttimeintegration 7.8 Otherdynamicprocedures 7.9 RelatedAbaqusexamples 7.10 Suggested reading 7.11 Summary 7.12 8. Nonlinearity Sources ofnonlinearity 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 ii Abaqus ID:gsk-toc Printed on: Mon February 28 -- 12:35:22 2011 CONTENTS Dampingofdynamicoscillations 9.5 Energy balance 9.6 Summary 9.7 10. Materials DefiningmaterialsinAbaqus 10.1 Plasticityinductile metals 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 Restartanalysis 11.4 Example: restartingthepipevibrationanalysis 11.5 RelatedAbaqusexamples 11.6 Summary 11.7 12. Contact OverviewofcontactcapabilitiesinAbaqus 12.1 Interactionbetweensurfaces 12.2 DefiningcontactinAbaqus/Standard 12.3 ModelingissuesforrigidsurfacesinAbaqus/Standard 12.4 Abaqus/Standard2-Dexample: formingachannel 12.5 GeneralcontactinAbaqus/Standard 12.6 Abaqus/Standard3-Dexample: shearingofalapjoint 12.7 DefiningcontactinAbaqus/Explicit 12.8 ModelingconsiderationsinAbaqus/Explicit 12.9 Abaqus/Explicitexample: circuitboarddroptest 12.10 CompatibilitybetweenAbaqus/StandardandAbaqus/Explicit 12.11 RelatedAbaqusexamples 12.12 iii Abaqus ID:gsk-toc Printed on: Mon February 28 -- 12:35:22 2011 CONTENTS Suggested reading 12.13 Summary 12.14 13. Quasi-StaticAnalysiswith Abaqus/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 Overheadhoistframe 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 Axisymmetric mount A.10 Testfitofhyperelasticmaterialdata A.11 Vibrationofapipingsystem A.12 FormingachannelwithAbaqus/Standard A.13 Shearingofa lapjoint A.14 Circuitboarddroptest A.15 FormingachannelwithAbaqus/Explicit A.16 iv Abaqus ID:gsk-toc Printed on: Mon February 28 -- 12:35:22 2011

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