SACS Collapse View.pdf

3/10/2015 SACSCollapseView

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Copyright2012byBentleySystems,Inc.Version7.0Revision1

1.0INTRODUCTION

1.1OVERVIEW

Thecollapseanalysisviewprogram,calledCollapseView(Collvue),isaninteractivegraphicspostprocessorthatallowsforthereviewingofnonlinearanalysisresultsinthesameenvironmentasPrecedeandPostvue.Theprogramallowsforviewingofdeflectedshapes,includingthedisplacementofelementsubsegments,andthegradualplastificationofelementsforanyloadincrement.Theprogramalsoprovidesextensiveplotandreportcapabilitiesthatallowforthestructureelastoplastichistoryandfailuremechanismtoberepresentedgraphicallyorinreportform.

CollapseViewrequiresacollapseanalysisresultsorrestartfile,createdbytheCollapseprogrammodule.TheresultsfilecontainsallcollapseanalysisinformationrequiredtoexecutetheCollapseViewprogramincludinganalysisresultsandmostmodelinformation.Inadditiontothecollapseanalysisrestartorresultsfile,aSACSmodelfilemayalsobespecifiedtobereadbytheCollapseViewprogram.TheSACSmodelfileisonlyrequiredifviews,facesorplansdefinedinthemodelaretobeusedoriftwolinerepresentationofnontubularmembersisdesired

Note:Ifamodelfileistobeinputalongwithacollapseanalysisrestartfile,themodelfileshouldbespecifiedasthesecondfileonthecommandline.

OutputfromCollapseViewconsistsofplotfilesandreportfiles.PlotfilesmaybeoutputinSACSNPF.ReportfilesaregeneratedasASCIItextfiles.



1.2SYSTEMCONFIGURATION

BeforeexecutingCollapseViewforthefirsttime,theSACSsystemconfigurationfileshouldbegeneratedusingtheSACSExecutive.CollapseViewaccessestheconfigurationfilenameconfigg.sacdefinedbyenvironmentalvariableSACGCFG.DatafromtheconfigurationfileisusedinallsubsequentexecutionsandmaybeeditedusingtheSACSExecutive.Iftheconfigurationfileisnotfoundorifthefiledoesnotexist,theCollapseViewprogramwillexitwithaconfigurationfilenotfounderrormessage.

Note:TheenvironmentalvariableSACGCFGmustcontainthefullpathnameoftheconfigurationfileincludingthefilename.

TheconfigurationparametersusedinCollapseViewmaybechangedforthecurrentsessionusingtheFile/Setupoption.



2.0GETTINGSTARTED

2.1CREATINGTHECOLLAPSERESULTSFILE

TheCollapseViewinteractiveplasticanalysisreviewprogramrequiresthatanalysisresultsandgeneralmodelinformationbestoredinacollapseanalysisresultsfile(restartfile).TheCollapseprogrammodulemustbeusedtogeneratethisfilepriortoinitiatingtheCollapseViewsession.

2.2BEGINNINGACOLLAPSEVIEWSESSION

TheCollapseViewplasticanalysisreviewsessionmayalsobestartedbyselectingCollapseViewfromtheSACSExecutiveandselectingacollapseanalysisrestartfileandtheSACSmodelfile.TheExecutivewillalsoprompttheuserifallloadstepsorselectedloadstepsaretobereadintoCollapseView.

Note:Themodelfilenameisoptionalandisrequiredonlyifmodelviews,facesorplansaretobeusedand/ornontubularcrosssectionsaretobedisplayedusingthedoublelinefeature.

2.3EXITINGTHECOLLAPSEVIEWSESSION

SelecttheFile/ExitmenucommandtoexittheCollapseViewsession.Iftheplotand/orreportshavebeencreatedtoafile,theplotand/orreportaresavedusingthedefaultfilenames.

3.0FILEFEATURES

3.1OPEN

TheOpencommandisusedtoimportanexistingCollapseanalysisresultsorrestartfile.

3.2SAVENPFAS

ThisassignsthenametotheNeutralPictureFile.

3.3SETTINGS

Thisallowstheusertoviewthestructurewith2linesorshading.ItalsoallowsthetimedwaitforAutoviewandallowstheusertoomitanumberofloadstepsfromtheendoftherestartfile,orreadagivennumberofstepsfromthestartofrestartfile.Thescalefactorforzoomcanalsobesetfromthisoption.Thesettingsoptionalsoallowstheusertolabeljointfailureswithacircle.

3.4PLOT



3.4.1Screen

Thescreencommandplotsthedisplaywindowcontentstotheprintdevice.

3.4.2Title

Allowstheusertoassignatitletoaplot.

3.5PAGESETUP

Allowstheusertoassignmarginsanddrawbordersaroundthemarginsandcreatecolorplotsandalsotodefinecharactersize.

3.6EXPORT

AllowstheusertosavethefiletothewindowsclipboardinadditiontoaNeutralPictureFormat,DXFFormatorasaWindowsMetaFile.

3.7EXIT

ThiscommandisusedtoexittheCollapseresultsreviewsession.CollapseViewpromptstheusertosaveanyreportsorplotsthatweregeneratedtoafilethatwerenotpreviouslysaved.

4.0DISPLAYFEATURES

4.1ACTIVE/ISOMETRIC

TheActive/Isometriccommanddisplaysallactivejoints,members,platesandshellsinathreedimensionalperspectiveview.Ifadisplayvolumeisset(seeSection4.4),thenallactivejointsandelementswithinthespecifiedvolumearedisplayed.

4.2FACE

IftheSACSmodelfilewasspecifiedonthecommandlinewhenbeginningtheCollapseViewsession,thisfeatureallowstheusertoselecttheplaneofapredefinedfacetobedisplayed.Anoutofplanetolerancemaybeenteredinthepropertybox.

Note:ThisfeaturerequiresthatamodelfilebeinputintotheCollapseViewprograminadditiontotheCollapseresultsorrestartfile.

4.3PLAN

Thisfeatureallowstheusertoselecttheplaneofapredefinedplantobedisplayed.Thedesiredplanisselectedfromthepropertybox.Theoutof



planetolerancemaybeenteredinthepropertybox..

Note:ThisfeaturerequiresthatamodelfilebeinputintotheCollapseViewprograminadditiontotheCollapseresultsorrestartfile.

4.4PLANE

ThePlanedisplaycommandactivatestheDisplay/Planesubmenuallowingaccesstoplaneandvolumedisplaycommands.Planesorvolumescontainingjointsthatarelocatedinthespecifiedplaneand/orvolumeandanyactivememberorplateelementsconnectedtothejointsareshown.Theplanedisplayfeaturesallowforanoutofplanetolerancetobespecifiedintheproperty.

Note:Onlymemberorplateelementsthathaveallconnectingjointsshownareincludedonthedisplay.

Inadditiontodisplayingvolumecontents,volumedisplayfeaturesdeactivateeverythinglyingoutsideofthespecifiedvolume.Therefore,onceavolumeisactivated,theResetVoloptionmustbeusedtodisplayjointsandelementslyingoutsideofthevolume(s)designated.TheXY,XZandYZvolumefeaturesmaybeusedinconjunctionwitheachothertodefinecubesthataretobedisplayed.

4.4.1Joints

Aplaneviewmaybedefinedbyanythreejointsthatarenotalignedalongaline,usingthisoption.Thefirsttwojointspickeddefinethelineusedasthehorizontaldisplayaxisoftheplane.Thethirdjointpickedisusedtodefineplanetobedisplayed.

Note:Theplaneisdisplayedsuchthatthelinedefinedbythefirsttwojointsisalignedhorizontallyandisdisplayedfromlefttorightonthedisplay.

4.4.2XYPlane

AglobalXYplane,definedbyaglobalZ(vertical)coordinateinputinthepropertybox,maybedisplayedusingthisfeature.Anoutofplanetolerancemaybespecifiedwiththisoption.

4.4.3XZPlane

AglobalXZplane,definedbyaglobalYcoordinateinputinthepropertybox,maybedisplayedusingthisfeature.Anoutofplanetolerancemaybespecifiedwiththisoption.

4.4.4YZPlane

AglobalYZplane,definedbyaglobalXcoordinateinputinthepropertybox,maybedisplayedusingthisfeature.Anoutofplanetolerancemaybespecifiedwiththisoption.

4.4.5XYVolume



AvolumedefinedbetweentwoglobalXYplanesmaybedesignatedfordisplayusingtheXYVolumefeature.ThevolumeisdefinedbytheminimumandmaximumglobalZcoordinatesspecifiedinthepropertyboxandanyXZand/orYZvolumesalreadyactivated.

4.4.6XZVolume

AvolumedefinedbetweentwoglobalXZplanesmaybedesignatedfordisplayusingtheXZVolumefeature.ThevolumeisdefinedbytheminimumandmaximumglobalYcoordinatesspecifiedinthepropertyboxandanyXYand/orYZvolumesalreadyactivated.

4.4.7YZVolume

AvolumedefinedbetweentwoglobalYZplanesmaybedesignatedfordisplayusingtheYZVolumefeature.ThevolumeisdefinedbytheminimumandmaximumglobalXcoordinatesspecifiedinthepropertyboxandanyXYand/orXZvolumesalreadyactivated.

4.4.8ResetVolume

Thisoptionresetsthevolumerangecoordinatestothedefaultvaluesof4and4forXY,XZandYZvolumes.

4.5SELECT

TheSelectoptionallowstheusertoselectdisplayoptionsandtoincludeand/orexcludeportionsofthestructurefordisplaypurposes.



Thedisplayoptionscheckboxesareusedtodesignatewhetherornotdisconnectedjoints(jointswithnoactivemembersconnected),members,memberoffsets,platesandplateoffsets,shellelementsaretobedisplayed.

TheJointRangesframeallowsupto4jointrangestobedefined.JointnameswithinthespecifiedrangesmaybedesignatedtobeeitherincludedorexcludedfromthedisplaybyselectingtheIncludeorExcludebutton,respectively.WhenthejointrangesaredesignatedasIncluded,onlyjointswithinthespecifiedrangesareactivefordisplaypurposes.WhentherangesaredesignatedasExcluded,jointswithinthespecifiedrangesaredeactivatedorexcludedfordisplaypurposes.

Upto20Memberand/orplategroupsmaybespecifiedtobeincludedorexcludedfromthedisplay.WhengroupsaredesignatedasIncluded,onlyelementsthathaveallincidentjointsactiveandareassignedtooneofthespecifiedgroupsareconsideredactivefordisplay.WhengroupsaredesignatedasExcluded,allelementsassignedtooneofthespecifiedgroupsareexcludedordeactivatedfromthedisplay.TheMembergroupsonlycheckboxdesignateswhetheronlymembergroupsaretobeincludedorexcluded(checked),ormemberandplategroupsaretobeincludedorexcluded(unchecked).

ClickthePlasticbuttontoopentheplasticityleveloptionswindowshownbelow.Enterthefivelevelsofplasticitytobedisplayed.

4.6RESETSELECT



Thiscommandallowstheusertoresettheselectoptionsbacktotheirdefaultvalues.

4.7LABELING

TheDisplay/Labelingfeaturesallowforjoints,membersand/orplatestobelabeledonthedisplay.Ingeneral,labelsubmenuitemsaretogglesthatturnthefeatureonoroff.

4.8ROTATE

TheRotatefeaturesallowtheactivedisplaytoberotatedabouttheglobalX,YorZaxes.

4.92LINE

Thistoggledesignateswhetherstructuralmembersaretobedisplayedassingleordoublelines.

4.10SHADING

SelecttheShadingmenucheckifmembersdisplayedastwolinesaretobeshownwithshading.

4.11ZOOMBOX

Thisoptionexpandstheareawithinthedesignatedwindowsothatitfillstheentiredisplayarea.

4.12UNZOOM

Thisoptionreturnsanyzoomeddisplaytoitsoriginalunzoomedform.

4.13VIEW

TheViewdisplaymenucommandactivatestheDisplay/Viewsubmenushownbelow.ViewfeaturesrequirethatamodelfilebeinputintotheCollapseViewprograminadditiontotheplasticanalysisresultsorrestartfile.

4.14DEFLECTIONFACTOR

Allowstheusertofactorthedeflectionsfordisplaypurposes.

5.0LOADSTEPFEATURES

TheLoadStepmenucommandsallowtheusertodesignatetheactiveordisplayedloadincrement.Thecurrentloadincrementisdisplayedusingthe



currentdisplaysettingsanddeflectionfactor.

Note:Adeflectionfactormaybespecifiedinordertoexaggeratethedisplacementsofaparticularloadincrement.SelecttheDeflectionFactorundertheDisplayMenu.

5.1SPECIFIC

Theresultsforanyoneparticularloadconditionmaybedisplayedbyselectingthiscommandandthenenteringtheloadincrementnumberonthedataline.Theresultsfortheloadincrementspecifiedaredisplayedaccordingtothecurrentdisplaysettingsanddeflectionfactor.

5.2NEXT

SelecttheNextcommandtodisplaythenextloadincrementorstep.

5.3PRIOR

SelectthePriorcommandtodisplaythepreviousloadincrementorstep.

5.4SKIP

Thiscommandskipsthenextloadincrementanddisplaystheloadstepfollowingthenextone.

5.5FIRST

Thiscommanddisplaystheresultsofthefirstloadincrement.

5.6LAST

Thiscommanddisplaystheanalysisresultsofthelastloadincrement.

5.7AUTOVIEW

TheAutoviewcommanddisplaysloadstepsautomaticallybeginningwiththecurrentloadstep.Loadstepsaredisplayedaccordingtothecurrentdisplaysettings.ThedelaytimebetweenloadstepsmaybespecifiedontheSetupWindowbyselectingtheSetupcommandoftheFilemenu.Loadincrementsaredisplayeduntilthelastloadincrementisdisplayed.

Note:TheAutoviewfeaturemaybestoppedatanyloadstepbypressingtheEscapekey.

5.8SHOWGRAPH


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TheShowGraphcommanddisplaysthecurrentgraphatthebottomrightcornerofthedisplayarea.Thisfeatureallowsforthestructuretobedisplayedsimultaneouslywiththegraphgenerated.

Thecorrespondingstructureshapeandanalysisresultscanbedisplayedforanypointonthegraphbyclickingonthepointonthegraph.Thecurrentloadincrementissettotheloadincrementcorrespondingtothepoint.

Note:Whenforce,deflectionorreactionisgraphedversusloadstep,valuesforforce,deflectionorreactionareplottedasapointforeachloadstep.Thesepointsonthegraphareconnectedbyastraightline.Therefore,whenapositiononthelineisselected,theclosestpointrepresentingaloadstepisused.

6.0JOINTFEATURES

6.1DETAILS

Thejointname,coordinatesandfixityforajointmaybedisplayedwiththisoption.AfterselectingtheDisplaycommand,selectthejointwhosecoordinatesaretobedisplayed.

6.2DISPLACEMENT

GivestheXYZdisplacementofaselectedjointataspecificloadstep.

6.3FIND

ThecoordinatesandfixityofanyjointmaybedisplayedbyselectingthisoptionbyspecifyingthejointnameintheJointnamefieldinthepropertybox.Ifthejointisincludedonthedisplay,anxwillpointtothejoint.

7.0MEMBERFEATURES

7.1DETAILS

Allowstheusertodisplaymemberdataforselectedmembers.

7.2FIND

Memberfindwilllocatethememberwithinthestructure.Aswellas,displayinmemberdetails.

8.0PLATEFEATURES



8.1DETAILS

Informationforindividualplatesincludestheplatename,theplategrouptowhichitisassignedandtheconnectingjointsmaybedisplayedusingthisoption.

8.2FIND

Thisoptionallowstheusertolocateaspecificplatewithinthestructure.

9.0REPORTFEATURES

TheReportfeaturesprovidethecapabilitytoreportmodelandplasticanalysisinformationtoeithertheCollapseViewReportwindowortoanexternalreportfile.

Uponselectinganyofthereportfeatures,theReportOptionsdialogisactivated.



Theportionofthestructuretoincludeforreportingmaybedesignatedusingthejoint,memberand/orgroupfilters.TheloadstepstobeincludedmaybespecifiedusingtheLoadStepfilter.

Note:Reportsaregeneratedonlyforitemsthatmeetallfiltercriteriaspecified.Forexample,ifactivemembersisselectedandalistofgroupsisspecified,onlymembersbelongingtolistedgroupsthatareactiveonthedisplayscreenarereported.

9.1JOINT

Thejointreportfeaturesgeneratejointinformationforalljointsmeetingthejointselectioncriteria.

9.1.1Displacement

Thiscommandgeneratesajointdisplacementreport.

9.1.2Forces

Thejointreactionreportcontainsreactionsforsupportjointsmeetingthedesignatedjointselectioncriteriafortheloadstepsdesignated.

9.1.3Capacity

Thejointcapacityreportcontainsjointstresses,allowableandcapacityinformationforthedesignatedjoint/loadstepselection.

9.2MEMBER

Thememberreportfeaturesgeneratereportscontainingmemberanalysisresultsincludinginternalstressesandinternalloads.

9.2.1Stresses

SelecttheStresscommandtocreateastressreportforeachmembermeetingthereportselectioncriteria.MemberinternalstressesateachmembersubsegmentalongthememberlengthareincludedintheStressreport.

9.2.2InternalLoads

SelecttheInternalLoadscommandtocreateaninternalloadreportforeachmembermeetingthereportselectioncriteria.MemberinternalloadsateachmembersubsegmentalongthememberlengthareincludedintheInternalLoadsreport.

9.2.3Strains

Thisoptionallowstheuserstoreportstrainsforspecifiedmembersorforgivensteps.



9.3PLATE

9.3.1Stresses

Allowstheuserstoreportplatestressesforselectedplatesandloadsteps.

9.4PILE

9.4.1Displacement

Thisoptionallowstheusertoreportpiledisplacementsforselectedpilesandloadsteps.

9.4.2InternalLoad

Theinternalloadintheselectedpile,forspecificloadstepscanbereportedusingthisoption.

9.4.3Capacity

Thisoptionallowstheuserstoreporttheaxialcapacityinitializationforselectedpilesandspecifiedloadsteps.

9.5LOADSUMMATION

TheLoadSummationcommandcreatesaloadingsummaryreportforeachoftheloadstepsdesignated.

9.6WORK

Thisoptionallowstheusertoreporttheworkdone,indeformingthestructureforspecificloadstepsandselectedjoints.

9.6.1ModelingImpactEvents

Animpacteventinvolvesthetransferenceofthekineticenergyofamovingobjectintostrainenergyresultingfrom

(i)Globaldeformationoftheimpactedstructure,

(ii)Deformationofashipsstructure,

(iii)Localindentationofanimpactedmember.



TherearetwomethodsformodelingimpacteventsinCollapse,namelythedisplacementdrivenmethodandtheforcedrivenmethod.

9.6.2DisplacementdrivenMethod

Thedisplacementdrivenmethodisusedprimarilyformodelingshipimpactevents.Aprescribeddisplacementisspecifiedinordertogeneratetheshipimpactload.CollapseViewcanthenbeusedtopostprocesstheresultsintheformofreportsandgraphs.

ThereportsaregeneratedbyaccessingtheReport/Work/Workdonebyspecifieddeflectionsmenu.Thefollowingdataisreported:

(i)Structuraldeformationenergyduetotheprescribeddisplacement,

(ii)Shipindentationenergyduetosternandbroadsideimpactsforthecaseofa5000MTshipimpactinga1.5mdiametercolumn,

(iii)Totalabsorbedenergy(shipindentationenergy+structuraldeformationenergy).

TheaboveinformationcanalsobegraphedusingthefollowingquantitiesdisplayedundertheGraph/DefineAxismenu:

WorkXWorkdonebyspecifieddeflectionsintheXdirection

WorkYWorkdonebyspecifieddeflectionsintheYdirection

WorkZWorkdonebyspecifieddeflectionsintheZdirection

TotalWorkTotalworkdonebyspecifieddeflectionsinalldirections

ShipSternWorkShipSternIndentationEnergy

ShipBroadsideWorkShipBroadsideIndentationEnergy

TotalSternWorkTotalabsorbedenergy(shipstern+structuraldeformation)

TotalBroadsideWorkTotalabsorbedenergy(shipbroadside+structuraldeformation)

9.6.3ForcedrivenMethod

Theforcedrivenimpactmethodisusedformodelinggeneralimpactevents,includingshipimpactandimpactduetoadroppedobject.Asetofforcesisspecifiedinordertosimulatetheimpactload.

Theforcedrivenmethodallowstheusertoprescribethekineticenergyofimpact.Ifthekineticenergyofimpactisexceededbythesumofthe



structuralandshipdeformationenergythentheloadingisstoppedandoptionallyreversed.Theuseralsohastheabilitytospecifyashipindentationcurve,whichallowsforautomaticcalculationoftheshipindentationenergy.

CollapseViewcanbeusedtopostprocesstheresultsintheformofreportsandgraphs.

ThereportsaregeneratedbyaccessingtheReport/Work/Workdonemenu.Theworkdonebyallexternalforcesonanyofthejointsmaybetabulatedandtotaled.Thisreportcanalsobeproducedforuserspecifiedjointsandloadstepsusingtheselectionoptions.

Ifloadstepselectionhasbeenactivated,thenCollapseViewadditionallyreportstheworkdonethatisaccumulatedsolelyduringtheselectedloadsteps.Forinstance,ifanimpacteventtakesplacefromloadsteps6through15,thenlimitingthereporttoloadsteps6through15willensurethatCollapseViewreportstheworkdonesolelyduetotheimpactforce.

TheworkdonebyexternalforcesthatactonagivenjointmaybegraphedusingthefollowingquantitiesunderGraph/DefineAxis:

WorkDoneXWorkdonebyexternalforcesintheXdirection

WorkDoneYWorkdonebyexternalforcesintheYdirection

WorkDoneZWorkdonebyexternalforcesintheZdirection

TotalWorkDoneSumoftheworkdonebyexternalforcesinalldirections

Furthermore,theshipindentationenergymaybeplottedusingtheShipDentEnergyquantity.

9.7HISTORY

SelecttheHistorycommandtocreateaplasticanalysishistoryreport.Thehistoryreportcontainsastepbystepdocumentationoftheeventsoccurringduringtheanalysis.Criticaleventssuchaschangeinmemberplasticity,memberunloading,formationofhinge,localbuckling,jointfailure,jointcollapse,etc.aredocumentedforeachloadstep.

10.0GRAPHFEATURES

10.1DEFINEAXES



AllowstheuserstodefineXandYaxessettings.

10.2FORMAT



ThegraphlayoutorstylesettingsmaybedesignatedontheGraphStylesettingswindow.

10.2.1GraphTitle

Enterthegraphtitle,ifany,intheTitletextbox.

10.2.2MajorGridLines

SolidordashedmajorgridlinesmaybeusedalongeitheraxisbyselectingtheSolidorDashedbuttonintheXaxisorYAxisframe.MajorgridlinesmaybeomittedalongeitheraxisbyselectingthebuttonnexttogridlinetypeNone.

10.2.3TickMarks

TickmarksmaybeplacedbetweenmajorgridlinesbycheckingtheShowtickmarksbox.Thenumberoftickmarksbetweenmajorgridlinesmayalsobespecified.



10.2.4AxisLabel

Specifytheaxislabelintheaxislabeltextbox.

11.0WINDOWFEATURES

Thisallowstheusertoactivateeitherthegraphicwindoworthestructuraldisplaywindow.

12.0HELPFEATURES

12.1CONTENTS

SelectingtheContentsmenuactivatesthehelpfilebrowsefacility.Theusermaybrowsethroughthelistofkeywordsandtermsthatareprovided.Theappropriatemenuitemisreferencedforkeywordsandtermslisted.Inaddition,themanualsectioncontainingdetailedinformationisreferencedforeachitem.

12.2EDIWEBSITE

ThisoptionallowstheusertoopenMicrosoftInternetExplorerandgotoEDIswebsite.TheminimumrequirementfortheInternetExplorerisversion3.02upwards.

12.3ABOUTCOLLVUE

ThisoptionallowstheusertoviewthereleaseversionofCollapseView.

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