8/10/2019 Stringer Tsdaasadasdsadasdautorial

1/172011 Hormoz Zareh & Donald Bell 1 Portland State University, Mechanical Engineering

Abaqus/CAE(ver.6.10)StringerTutorial

ProblemDescription

A table made of steel tubing with a solid steel

top and shelf is loaded with an oblique

impulse load. Determine the transientresponse of the table.

8/10/2019 Stringer Tsdaasadasdsadasdautorial

2/172011 Hormoz Zareh & Donald Bell 2 Portland State University, Mechanical Engineering

AnalysisSteps1. StartAbaqusandchoosetocreateanewmodeldatabase

2. InthemodeltreedoubleclickonthePartsnode(orrightclickonpartsandselectCreate)

3.

IntheCreatePartdialogbox(shownabove)namethepartand

a. Select3D

b. SelectDeformable

c.

SelectShell

d. SelectExtrusion

e.

Setapproximatesize=5

f. ClickContinue

4. First,createthetabletop.

a.

Createthegeometryshownbelow

b. Extrudethetop1meter.

8/10/2019 Stringer Tsdaasadasdsadasdautorial

3/172011 Hormoz Zareh & Donald Bell 3 Portland State University, Mechanical Engineering

5. InthetoolboxareaclickontheCreateDatumPoint:OffsetFromPointicon.

a.

Selectacornerofthetabletop,enter(0,1,0)fortheoffsetandpressEnter.

b.

Repeatfortheremaining3cornersofthetabletop.

6. InthetoolboxareaclickontheCreateWire:PointtoPointicon

a. SelectDisjointwiresandMergewirewithpartgeometry,ClickAdd

b.

Selectacornerofthetabletop,thenselectthedatumpointdirectlybelowit.

c. Repeatfortheremainingthreecorners,ClickDone,ClickOK

7. InthetoolboxareaclickontheOffsetFacesicon

a.

Selectthetopofthetable,ClickDone

b.

UnderOffset,selectDistanceandsetthevalueto0.5,ClickOK

8. DoubleclickontheStringersnodeinthemodeltree

8/10/2019 Stringer Tsdaasadasdsadasdautorial

4/172011 Hormoz Zareh & Donald Bell 4 Portland State University, Mechanical Engineering

a. Selecttheedgesofthetabletop,ClickDone

b.

Selecttheedgesoftheshelf,ClickDone

9. DoubleclickontheMaterialsnodeinthemodeltree

a. Namethenewmaterialandgiveitadescription

b. ClickontheMechanicaltabElasticityElastic

c. DefineYoungsModulusandPoissonsRatio(useSIunits)

d. ClickontheGeneraltabDensity

e. Density=7800

8/10/2019 Stringer Tsdaasadasdsadasdautorial

5/172011 Hormoz Zareh & Donald Bell 5 Portland State University, Mechanical Engineering

f. ClickOK

10.

DoubleclickontheProfilesnodeinthemodeltree

a.

NametheprofileandselectBoxfortheshape

b. ClickContinue

c. Enterthevaluesfortheprofileofa=b=0.05andauniformthicknessof0.003asshownbelow.

d. ClickOK

11.

Doubleclick

on

the

Sections

node

in

the

model

tree

a. Namethesectionstructural_tubeandselectBeamforboththecategoryandthetype

b. ClickContinue

c. LeavethesectionintegrationsettoDuringAnalysis

d. Selecttheprofilecreatedabove(square_tube)

e. Selectthematerialcreatedabove(Steel)

f. ClickOK

12.

DoubleclickontheSectionsnodeinthemodeltree

a. NamethesectionplateandselectShellCategoryandHomogeneousforType

b. ClickContinue

8/10/2019 Stringer Tsdaasadasdsadasdautorial

6/172011 Hormoz Zareh & Donald Bell 6 Portland State University, Mechanical Engineering

c. Settheshellthicknessto0.006andthematerialtothematerialcreatedabove.

d.

ClickOK

13.ExpandthePartsnodeinthemodeltree,expandthenodeofthepartjustcreated,anddoubleclickon

SectionAssignments

a. Selectthelegs

b.

Selectthe

beam

section

created

above

(structural_tube)

c. ClickOK

d. Selectthestringerscreatedalongtheshelledges

e. Selectthebeamsectioncreatedabove(structural_tube)

f.

ClickOK

g.

Selectthetabletopandshelf

h. Selecttheshellsectioncreatedabove(plate)

i. ClickOK

14.

ExpandtheAssemblynodeinthemodeltreeandthendoubleclickonInstances

a. SelectDependentfortheinstancetype

b. ClickOK

8/10/2019 Stringer Tsdaasadasdsadasdautorial

7/172011 Hormoz Zareh & Donald Bell 7 Portland State University, Mechanical Engineering

15.DoubleclickontheStepsnodeinthemodeltree

a.

Namethestep,settheproceduretoLinearperturbation,andselectFrequency

b.

ClickContinue

c. Givethestepadescription

d. Numberofeigenvaluesrequested=50

e.

ClickOK

8/10/2019 Stringer Tsdaasadasdsadasdautorial

8/172011 Hormoz Zareh & Donald Bell 8 Portland State University, Mechanical Engineering

16.DoubleclickontheBCsnodeinthemodeltree

a.

Nametheboundaryconditionedfixed_legsandselectSymmetry/Antisymmetry/Encastreforthe

type

b. ClickContinue

c. SelectthelowerendofallthelegsandpressDoneinthepromptarea

d. SelectEncastre.

e.

ClickOK

8/10/2019 Stringer Tsdaasadasdsadasdautorial

9/172011 Hormoz Zareh & Donald Bell 9 Portland State University, Mechanical Engineering

17.DoubleclickontheStepsnodeinthemodeltree

a.

Namethestep,settheproceduretoLinearperturbation,andselectModaldynamics

b.

ClickContinue

c. Onthebasictab,setthetimeperiodto0.5andthetimeincrementto0.0025(totalof200

increments)

d. Onthedampingtab,applyacriticaldampingfractionof0.05toall50modes

e.

ClickOK

18.

InthemodeltreedoubleclickonAmplitudes

a. SelectSmoothstepandnametheamplitude

b. Enterthetimeandamplitudesshownbelow

c. ClickOK

8/10/2019 Stringer Tsdaasadasdsadasdautorial

10/172011 Hormoz Zareh & Donald Bell 10 Portland State University, Mechanical Engineering

19.DoubleclickontheLoadsnodeinthemodeltree

a. SelectLineloadandclickContinue

b. Selecttheshortedgeoftheshelf

c. SetComponent1and2to100000(100e3)

d.

ChoosetheamplitudecreatedaboveandclickOK

20. InthemodeltreeundertheAssemblynode,doubleclickonSets

a. Nametheset,selecttheGeometryoption,andclickContinue

b. Selectthecornerofthetabletopabovewheretheloadwasapplied.

21.DoubleclickontheHistoryoutputrequestsnodeinthemodeltree

a. Namethehistoryoutput,selectthemodaldynamicsstep,andclickContinue

b. SetthedomaintoSetandselectthesetcreatedabove

c. Forthefrequencychoosetooutputevery1increments

8/10/2019 Stringer Tsdaasadasdsadasdautorial

11/172011 Hormoz Zareh & Donald Bell 11 Portland State University, Mechanical Engineering

d. FortheoutputselecttheU1,U2andU3displacements

e.

ClickOK

22. InthemodeltreedoubleclickonMeshfortheTablepart,andinthetoolboxareaclickontheAssign

ElementTypeicon

a.

Selectallthebeamsections(legsandstringers)

b. SelectStandardforelementtype

c. SelectLinearforgeometricorder

d. SelectBeamforfamily

e.

Notethat

the

name

of

the

element

(B31)

and

its

description

are

given

below

the

element

controls

f.

ClickOK

g. Selectthetabletopandshelf

h. SelectStandardforelementtype

i. SelectLinearforgeometricorder

j. SelectShellforfamily

k. Uncheckreducedintegration,ClickOK

8/10/2019 Stringer Tsdaasadasdsadasdautorial

12/172011 Hormoz Zareh & Donald Bell 12 Portland State University, Mechanical Engineering

23.

InthetoolboxareaclickontheSeedParticon.

a.

SetApproximateglobalsizeto0.1. ClickOK

24. InthetoolboxareaclickontheMeshParticon

a. ClickYesinthepromptarea

8/10/2019 Stringer Tsdaasadasdsadasdautorial

13/172011 Hormoz Zareh & Donald Bell 13 Portland State University, Mechanical Engineering

25. InthemenubarselectViewPartDisplayOptions

a.

ChecktheRenderbeamprofilesoption

b.

ClickOK

26.

ChangetheModuletoProperty

a.

ClickontheAssignBeamOrientationicon

b. Selecttheleggeometryfromtheviewport,ClickDone

c. Acceptthedefaultvalueoftheapproximaten1direction,PressEnter,ClickOK

d. Selectthelongedgesofthetopandshelf,ClickDone

e.

Acceptthedefaultvalueoftheapproximaten1direction,PressEnter,ClickOK

f. Selecttheshortedgesofthetopandshelf,ClickDone

g.

Acceptthe

default

value

of

the

approximate

n1

direction,

Press

Enter,

Click

OK

27.

In

the

model

tree

double

click

on

the

Job

node

a. Namethejob

b.

ClickContinue

c. Givethejobadescription

d. ClickOK

8/10/2019 Stringer Tsdaasadasdsadasdautorial

14/172011 Hormoz Zareh & Donald Bell 14 Portland State University, Mechanical Engineering

28. Inthemodeltreerightclickonthejobjustcreated andselectSubmit

a.

WhileAbaqusissolvingtheproblemrightclickonthejobsubmitted,andselectMonitor

8/10/2019 Stringer Tsdaasadasdsadasdautorial

15/172011 Hormoz Zareh & Donald Bell 15 Portland State University, Mechanical Engineering

b. IntheMonitorwindowcheckthattherearenoerrorsorwarnings

i.

Ifthereareerrors,investigatethecause(s)beforeresolving

ii.

Iftherearewarnings,determineifthewarningsarerelevant,somewarningscanbesafely

ignored

29. Inthemodeltreerightclickonthesubmittedandsuccessfullycompletedjob,andselectResults

30.Displaythedeformedcontouroverlaidwiththeundeformedgeometry

a.

Inthetoolboxareaclickonthefollowingicons

i. PlotContoursonDeformedShape

ii. AllowMultiplePlotStates

iii. PlotUndeformedShape

8/10/2019 Stringer Tsdaasadasdsadasdautorial

16/172011 Hormoz Zareh & Donald Bell 16 Portland State University, Mechanical Engineering

31.

InthetoolboxareaclickontheCommonPlotOptionsicon

a.

NotethattheDeformationScaleFactorcanbesetontheBasictab

b. ClickOK

32. InthemenubarclickonResultsActiveSteps/Frames

a.

UnchecktheExtractFrequenciesstep

b. ClickOK

33.Clickonthearrowsonthecontextbartochangethetimestepbeingdisplayed

a. Clickonthethreesquarestobringuptheframeselectorsliderbar

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34.Ontheresultstree,expandtheHistoryOutputnodeanddoubleclickonthespatialdisplacementhistory

created