Volume V: Prescribed Conditions

914 Pages·2011·9.6 MB·English

Abaqus Analysis User’s Manual
Abaqus 6.11
Analysis User’s Manual
Volume V: Prescribed Conditions,
Constraints & Interactions
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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.
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Locations
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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.
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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
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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
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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
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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
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