beam tutorial abqus
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AbaqusBeamTutorial
ProblemDescription
Thetwodimensionalbridgestructure,whichconsistsofsteelTsections,issimplysupportedatitslowercorners. A
uniformdistributedloadof1000N/misappliedtothelowerhorizontalmembersintheverticaldownwarddirection.
Determinethestressesandtheverticaldisplacements.
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Analysis
Steps
1. StartAbaqusandchoosetocreateanewmodeldatabase
2. InthemodeltreedoubleclickonthePartsnode(orrightclickonpartsandselectCreate)
3. IntheCreatePartdialogbox(shownabove)namethepartand
a. Select2DPlanar
b. SelectDeformable
c.
SelectWire
d. Setapproximatesize=20
e. ClickContinue
4. Createthegeometryshownbelow(notdiscussedhere)
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5. DoubleclickontheMaterialsnodeinthemodeltree
a. Namethenewmaterialandgiveitadescription
b.
ClickontheMechanicaltabElasticityElastic
c. DefineYoungsModulusandPoissonsRatio(useSIunits)
i. WARNING: TherearenopredefinedsystemofunitswithinAbaqus,sotheuserisresponsible
forensuringthatthecorrectvaluesarespecified
d.
ClickOK
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6. DoubleclickontheProfilesnodeinthemodeltree
a. NametheprofileandselectTfortheshape
i.
NotethattheTshapeisoneofseveralpredefinedcrosssections
b. ClickContinue
c. Enterthevaluesfortheprofileshownbelow
d. ClickOK
7.
DoubleclickontheSectionsnodeinthemodeltree
a. NamethesectionBeamPropertiesandselectBeamforboththecategoryandthetype
b. ClickContinue
c. LeavethesectionintegrationsettoDuringAnalysis
d. Selecttheprofilecreatedabove(TSection)
e.
Selectthematerialcreatedabove(Steel)
f. ClickOK
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8. ExpandthePartsnodeinthemodeltree,expandthenodeofthepartjustcreated,anddoubleclickon
SectionAssignments
a.
SelecttheentiregeometryintheviewportandpressEnter
b. Selectthesectioncreatedabove(BeamProperties)
c. ClickOK
9. ExpandtheAssemblynodeinthemodeltreeandthendoubleclickonInstances
a.
Select
Dependent
for
the
instance
type
b. ClickOK
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10.DoubleclickontheStepsnodeinthemodeltree
a. Namethestep,settheproceduretoGeneral,andselectStatic,General
b.
ClickContinue
c. Givethestepadescription
d. ClickOK
11.ExpandtheFieldOutputRequestsnodeinthemodeltree,andthendoubleclickonFOutput1(FOutput1was
automaticallygenerated
when
creating
the
step)
a. UncheckthevariablesStrainsandContact
b. ClickOK
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12.ExpandtheHistoryOutputRequestsnodeinthemodeltree,andthenrightclickonHOutput1(HOutput1was
automaticallygeneratedwhencreatingthestep)andselectDelete
13.DoubleclickontheBCsnodeinthemodeltree
a.
NametheboundaryconditionedPinnedandselectDisplacement/Rotationforthetype
b. ClickContinue
c. SelectthelowerleftvertexofthegeometryandpressDoneinthepromptarea
d. ChecktheU1andU2displacementsandsetthemto0
e.
Click
OK
f.
Repeatforthelowerrightvertex,butmodelarollerrestraint(onlyU2fixed)instead
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14.DoubleclickontheLoadsnodeinthemodeltree
a. NametheloadDistributedloadandselectLineloadasthetype
b.
ClickContinue
c. SelectthelowerhorizontaledgesofthegeometrypressDoneinthepromptarea
d. Specifycomponent2 =1000
i. NotethatbecausewehavebeenusingstandardSIunitstheloadappliedis1000N/m,whichis
atotalof10,000Ndistributedacrossthelowerhorizontalmembers
e.
ClickOK
15. InthemodeltreedoubleclickonMeshfortheBridgepart,andinthetoolboxareaclickontheAssign
ElementTypeicon
a. HighlightallmembersintheviewportandselectDone
b.
SelectStandardforelementtype
c.
SelectLinearforgeometricorder
d.
SelectBeam
for
family
e. Notethatthenameoftheelement(B21)anditsdescriptionaregivenbelowtheelementcontrols
f. ClickOK
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16. InthetoolboxareaclickontheSeedEdge:ByNumbericon(holddownicontobringuptheotheroptions)
a.
Selecttheentiregeometry,exceptthelowerhorizontallines,andclickDoneinthepromptarea
b. Definethenumberofelementsalongtheedgesas5
c.
Repeatforthelowerhorizontallines,exceptspecify10elementsalongtheedges
17. InthetoolboxareaclickontheMeshParticon
a. ClickYesinthepromptarea
18. InthemenubarselectViewPartDisplayOptions
a. ChecktheRenderbeamprofilesoptionontheGeneraltab
b.
Click
OK
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19.ChangetheModuletoProperty
a. ClickontheAssignBeamOrientationicon
b.
Selecttheentiregeometryfromtheviewport
c. ClickDoneinthepromptarea
d. Acceptthedefaultvalueoftheapproximaten1direction
20.Notethatthepreviewshowsthatthebeamcrosssectionsarenotallorientatedasdesired(seeProblem
Description)
21. InthetoolboxareaclickontheAssignBeam/TrussTangenticon
a. Clickonthesectionsofthegeometrythatareoffby180degrees
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22. InthemodeltreedoubleclickontheJobnode
a. NamethejobBridge
b.
ClickContinue
c. Givethejobadescription
d. ClickOK
23. Inthemodeltreerightclickonthejobjustcreated(Bridge)andselectSubmit
a. WhileAbaqusissolvingtheproblemrightclickonthejobsubmitted(Bridge),andselectMonitor
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b. IntheMonitorwindowcheckthattherearenoerrorsorwarnings
i. Ifthereareerrors,investigatethecause(s)beforeresolving
ii.
Iftherearewarnings,determineifthewarningsarerelevant,somewarningscanbesafely
ignored
24.
Inthemodeltreerightclickonthesubmittedandsuccessfullycompletedjob(Bridge),andselectResults
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25. InthemenubarclickonViewportViewportAnnotationsOptions
a. UnchecktheShowcompassoption
b.
ThelocationsofviewportitemscanbespecifiedonthecorrespondingtabintheViewportAnnotations
Options
c. ClickOK
26.
Displaythe
deformed
contour
of
the
(Von)
Mises
stress
overlaid
with
the
undeformed
geometry
a. Inthetoolboxareaclickonthefollowingicons
i. PlotContoursonDeformedShape
ii. AllowMultiplePlotStates
iii. PlotUndeformedShape
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27. InthetoolboxareaclickontheCommonPlotOptionsicon
a. NotethattheDeformationScaleFactorcanbesetontheBasictab
b.
OntheLabelstabchecktheshownodesymbolsicon
c. ClickOK
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28.Todeterminethestressvalues,fromthemenubarclickToolsQuery
a. ChecktheboxeslabeledNodesandS,Mises
b.
Intheviewportmouseovertheelementofinterest
c. NotethatAbaqusreportsstressvaluesfromtheintegrationpoints,whichmaydifferslightlyfromthe
valuesdeterminedbyprojectingvaluesfromthesurroundingintegrationpointstothenodes
i. Theminimumandmaximumstressvaluescontainedinthelegendarefromthestresses
projectedtothenodes
d.
Clickon
an
element
to
store
it
in
the
Selected
Probe
Values
portion
of
the
dialogue
box
e. ClickCancel
29.Tochangetheoutputbeingdisplayed,inthemenubarclickonResultsFieldOutput
a. SelectSpatialdisplacementatnodes
i.
Component=U2
b.
ClickOK
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30.Tocreateatextfilecontainingthestresses,verticaldisplacements,andreactionforces(includingthetotal),in
themenubarclickonReportFieldOutput
a.
Fortheoutputvariableselect(Von)Mises
b. OntheSetuptabspecifythenameandthelocationforthetextfile
c. UnchecktheColumntotalsoption
d. ClickApply
e. BackontheVariabletabchangethepositiontoUniqueNodal
f. Uncheckthestressvariable,andselecttheU2spatialdisplacement
g.
ClickApply
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h. OntheVariabletab,uncheckSpatialdisplacementandselecttheRF2reactionforce
i. OntheSetuptab,checktheColumntotalsoption
j.
ClickOK
31.
Openthe.rptfilewithanytexteditor
a. Onethingtocheckisthatthetotalreactionforceisequaltotheappliedload(10,000N)
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