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SolidWorksCorporation:CSWPSampleExam

CertifiedSolidWorksProfessional:SimulationSpecialist(CSWP-FEA)

SAMPLE EXAM

ThesequestionsareanexampleofwhattoexpectontheCertifiedSolidWorksProfessionalSimulationSpecialistexam.Howtotakethissampleexam:

1. Tobestsimulatetheconditionoftherealtest,itisbestNOTtoprintthisexam.SincetheVirtualTesterclientwindowrunsconcurrentlywithSolidWorksyoumustswitchbackandforthbetweenthetwoapplications.KeepingthisdocumentopenandconsultingitonyourcomputerwhilerunningSolidWorksisthebestmethodtosimulatetherealtestconditions.

2. Themultiplechoiceanswersshouldserveasacheckforyoutoensurethatyourmodeliscorrectwhilecompletingthisexam.Ifyoudonotfindyouranswerintheselectionsofferedthenthereismostlikelysomethingwrongwithyourmodel.

3. Answerstothesamplequestionscanbefoundonthelastpageofthisdocument.WhatyouwillneedfortherealCSWPFEAexam:

1. AcomputerrunningSolidWorks2010andSolidWorksSimulationProfessionalorPremium2. Thecomputermusthaveaconnectiontotheinternet.3. Dualmonitorswillhelp,butarenotnecessary.4. IfyouchoosetoruntheVirtualTesterclientonadifferentcomputer,youmusthaveawaytotransferfiles

totheSolidWorkscomputer,likeaUSBkeyorsomethingsimilar.Theexamcoverstheseareas:

1. MultiplechoicequestionsaboutgeneraltopicsinsimulationandFEA,andSolidWorksSimulation2. Manualcalculationsofloadsandstressesinsimplecases.3. SeveralhandsonchallengesinmanyoftheseareasoftheSolidWorksSimulation:

Static,Frequency,Thermalstudies WorkingwithSolidandShellelements WorkingwithBeams

o Definitionofbeamsandtrusseso Beamloadso Beamresults

Applyingloadsandrestraints Planesofsymmetry Nonuniformloads Meshcontrols Useofconfigurations Convergenceofresults Resultforces

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Notes: Forallhandsonquestions,answerswithin5%ofthelistedcorrectanswercanbeconsideredtobecorrect

aswell. Formanualcalculations,answerswithin1%ofthelistedcorrectanswercanbeconsideredtobecorrectas

well.

Thesampleexambeginsbelow

MultipleChoice

Question1:CanSolidWorksSimulationtakeadvantageofmultipleprocessorsandcores?

Question2:Aforce"F"appliedinastaticanalysisproducesaresultantdisplacementURES.Iftheforceisnow2*Fandthemeshisnotchanged,thenURESwill:

A. Doubleiftherearenocontactsspecifiedandtherearelargedisplacementsinthestructure.

B. Bedividedby2ifcontactsarespecified.

C. Theanalysismustberunagaintofindout

D. Doubleifthereisnosourceofnonlinearityinthestudy(likecontactsorlargedisplacementoption).

Question3:Whatisacompatiblemesh?

A. Ameshwhereelementsontouchingbodieshaveoverlayingnodes.

B. Ameshforwhichshellandsolidelementshavethesamenumberofdegreesoffreedompernode.

C. Ameshwhereonlyonetypeofelement(solidorshell)isused.

D. Noneoftheseanswersiscorrect

Question4:Tocomputethermalstressesonamodelwithauniformtemperaturedistribution,whattype/typesofstudy/studiesarerequired?

A. Staticonly.

B. Thermalonly.

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C. BothStaticandThermal.

D. Noneoftheseanswersiscorrect

Question5:Astructurehasafirstnaturalfrequencyof20cycles/sec.Whatisthetimeperiodofthebeaminseconds?

A. 40*pi

B. 0.05

C. 0.05*pi

D. 0.05/pi

Question6:Inastaticanalysis,atagivennode,theprincipalstressesP1,P2andP3areallequalto50psi.WhatisthevonMisesstressatthatnodeequalto?

A. 0

B. 50

C. 100

D. 150

Question7:Imagineyouhaveasymmetricalmodelandyoutakeadvantageofit.Ifyoumustapplyoneofthefollowingloads/boundaryconditionstoafacecutinhalfbytheplaneofsymmetry,forwhichone(s)ofthemwillyouhavetodividethevalueby2?

A. Force

B. Pressure

C. Boltpreload

D. Prescribednonzerodisplacement

E. Temperature

F. Heatfluxdensity

G. Heatpower

H. Convectioncoefficient

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ManualCalculationsManualCalculation1:Refertoimageshown.UnitSystem:English(IPS)DecimalPlaces:2Usehandcalculations,modelingisnotnecessary.

L1=0.5 L2=0.2 a=45 F=10Whatisthereactionforcemagnitude(lbs)atthesupportlocationR?

ManualCalculation2:Refertoimageshown.DecimalPlaces:2Usehandcalculations,modelingisnotnecessaryThe"Shaft"carriesatorquethatinducesashearforceinthe"Bolts".ShearStressinthe4bolts(kN/m2)S=40,000"Bolt"spacing(m)C=0.24"Bolt"diameter(mm)d=30"Shaft"diameter(m)D=0.15.Assumeeach"Bolt"carriesthesameshearforce.WhatistheTorque(kNm)carryingcapacityoftheshaft?

L1 L2

a

F

R

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Exercises

Exercise1:Inthefigureshown,whatistheverticaldisplacementintheglobalYdirection(ininches)atthelocationofthereddot?Reportyouranswerto3decimalplaces.Material:AlloySteel(SS)fromSolidWorksmateriallibraryElasticmodulus=2.1e11N/mPoisson'sratio=0.28F1=200LbsUsedefaulthighqualityelementsize.

Exercise2:Usethemodelbelow.Whatisthedamageatthelocationofthereddot(inpercent)causedby100,000applicationsandremovalsofF1.Applyameshcontrolof1mmwithagrowthratioof1.25tothefixedface.Usedefaulthighqualityelementsize.Material:AlloySteel(SS)fromSolidWorksmateriallibraryElasticmodulus=2.1e11N/mPoisson'sratio=0.28F1=150LbsUseSNcurvebasedonASMEmethodforCarbonsteels.ComputealternatingstressesusingvonMisesstressandusethemeanstresscorrectionmethodbestsuitedtoductilematerials.

F1

1.5cm

1cm20cm

7cm

F1

1.5cm

1cm20cm

2cm

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Exercise3:Inthefigureshown,whatisthebucklingloadfactor?Reportyouranswerto2decimalplaces.Material:AlloySteel(SS)fromSolidWorksmateriallibraryElasticmodulus=2.1e11N/mPoisson'sratio=0.28F1=5000Na=5Usedefaulthighqualityelementsize.

Exercise4:Analysissetup:UsemodelQuarterEyeBar.x_tinenclosedzipfileQuarterEyeBar.zip.Materials:ABSforEyebar,Aluminum6061AlloyforBolt.Restraints:FacesAandBarefixed.Usesymmetrytoreducemodelsizeasmuchaspossible.Mesh:Solid,Highquality,Defaultelementsize.Modeling guidelines: Parts are not glued together.Do not use Soft spring, Inertia relief or LargeDisplacementoptions.PressureP(psi):600.WhatisthemaximumnodalprincipalstressP1(psi)intheassembly?

F1 1.5cm

1cm 20cm

a

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Exercise5:Usethesameanalysissetup.PressureP(psi):1000.WhatisthemaximumnodalvonMisesstress(psi)onthe"QuarterBolt"component?"Exercise6:AfixedrectangularframeABCDwithdimensions:L=360''andh=180''issubjectedtoahorizontalforceW=10lbactingonjointC.Calculatethesupportreactionsandmoments.MaterialProperties:Modulusofelasticity=30X106psi.CrossSectionProperties:ISOSquareTube:20x20x2(definefromavailablecrosssections)Modelingguidelines:Theframemembersaretreatedasbeamelements.Whatarerespectively?

VerticalReactionForce:VA(lb) HorizontalReactionForce:HA(lb) ReactionMoment:MA(lb.in) AxialstressinbarCD:Sigma(psi)

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AnswersMultipleChoice:

1. Yes

2. D

3. A

4. A

5. B

6. A

7. A,C,G

Manualcalculations:

1. 7.354lbs

2. 13.57kNm

Exercices1. 0.026in

2. 95%

3. 3.24

4. 1640psi

5. 1730psi

6. VA=1.875,HA=5.0,MA=562.5,Sigma=24.127