H. Kim – FEA Tutorial ABAQUS/CAE Tutorial: Analysis Of An .

2y ago
49 Views
2 Downloads
432.91 KB
18 Pages
Last View : 16d ago
Last Download : 2m ago
Upload by : Bennett Almond
Transcription

H. Kim – FEA TutorialABAQUS/CAE Tutorial: Analysis of an Aluminum BracketHyonny Kimlast updated: August 2004In this tutorial, you’ll learn how to:1.2.3.4.5.6.Sketch 2D geometry & define part.Define material properties.Apply loads and boundary conditions.Mesh.Run analysis.View results.1

H. Kim – FEA TutorialHelpful Tips Before Getting StartedUse Exceed 9.0 or equivalent PC terminal software.HELPOnline help manuals: abaqus aae doc & - there is a “book” for CAE: “ABAQUS/CAE User's Manual”. Contextsensitive help is also available within CAE.CAE creates the .inp file which you can edit and run by the command line, or you can submit jobs from within CAE.Other files are .cae (CAE model file), .odb, .dat, .log, .msg, and .sta. The .dat is the text output file that willcontain results. The .odb file is the binary output file that will be read during post-processing to view graphicalresults. The .log file keeps a text record of all processes and is useful for checking the status of the analysis. The.msg lists the progress of the analysis, as well as provides some messages about why an analysis might havecrashed (this information is often within the .dat file as well). The .sta file is a summary of the informationcontained in the .msg file, and is useful for monitoring the status of long-running jobs during their computation.MOUSEUse of the Mouse:– button 1 (left) is select, button 2 (right) gives menu, button 3 (middle, if available is “enter” or “done”)– multiple items can be selected by: “dragging” a window or holding the SHIFT key while picking– items can be de-selected by holding the CTRL key.2

H. Kim – FEA TutorialABAQUS/CAE: Getting Started, Create Part To run ABAQUS/CAE, first goto the directory you wish yourfiles to be located, then type:abaqus aae caeor/usr/site/aae/bin/abaqus aae caeclick Create Model DatabaseIn the Module dropdown box,select Part (this takes about 30seconds for the program toinitialize)Note the locations of: Tool Bar,Menu Bar, Toolbox Area,Prompt Area. These will bereferred to repeatedly in thefuture.In the Toolbox Area, clickCreate Part button. The CreatePart window will pop up.Enter in name, e.g., bracketUnder Modeling Space, choose2D PlanarBase Feature, ShellApproximate size: 20click Continue 3

H. Kim – FEA TutorialSketch Part The window will change to that shown at right.Note the buttons pointed out.–––1.Buttons with a dark triangle will provide morebutton choices when clicked and held. Try it.Float your mouse pointer over buttons, it willgive a pop-up description.Context-Sensitive Help is available. Click thehelp button, then the item you want more info on.Click Create Lines button. Note it ishighlighted when active. In prompt area, enterin the coordinates:1.2.3.4.5.6.7.0, 0 enter 8, 0 enter (it is ok if point is be out of view)8, -12 enter 5, -12 enter 5, -3 enter 0, -3 enter click on point 1 (box will appear on it). Finishedproduct will be yellow outline of the bracket.Click Auto-Fit View button to re-scale image. Theother buttons adjacent to this one will adjustpanning, rotation, and zoom. Try them out.Dynamic viewing with mouse buttons by holdingCTRL ALT on right side of keyboard. Try it.2.3.Click Create Circle button. Enter 6.5, -1.5 forcenter, and 7.25, -1.5 for perimeter point.Click Create Fillet button (go to next page)4

H. Kim – FEA TutorialSketch Part – contd.3. cont’d enter 1.0 for fillet radius in the Prompt Area, hit enter, then Mouse click on inner two lines when prompted. The Create Fillet button should still be highlighted. Click this again to get the screen shown below left. Click the Done button in the Prompt Area at the bottom of the screen. You now are returned to the Part Module screen. This should look like the screen below right. Note different toolbuttons shown in the Toolbox Area.5

H. Kim – FEA TutorialPartition Edge Click the “Partition Edge:Enter Parameter” button. Inorder to get this button, youneed to click and hold over theline partitioning tools button –note the small dark triangle inthe lower right cornerindicates that this is anexpanding button.You will be prompted to selectan edge, select the far righthand edge of the bracket.Click Done.In the Prompt Area, enter invalue of 0.25 for theNormalized edge parameter.Click the Create Partitionbutton to finish.You will see a large dot onefourth of the way up the edgeof the bracket. Thispartitioned edge will be usedlater for applying a uniformload.6

H. Kim – FEA TutorialSaving and Defining Material Properties Save your work: in the MenuBar, click File, Save As.– 1.Under Selection, enter aname at the end of the path,e.g. bracket. Click OK. Fromnow on, you can just clickthe blue floppy disk icon inthe Tool Bar. Save often!!!Change Modules. In theModule drop-down boxbeneath the Tool Bar, selectProperty.Click Create Material Button–enter a name, e.g. Aluminum,select Mechanical -- Elasticity -- Elastic– enter 10e6 for Young’sModulus, 0.3 for Poisson’sRatio.– click OKIf you want to modify the material,click the Material Manager buttonto the right of Create Material,select the material by name andclick Edit, or click Dismiss to leavewithout making any changes.7

H. Kim – FEA TutorialAssign Properties to Regions of Model2.Click Create Section Button–––––3.enter a name, e.g., platechoose Solid andHomogeneousclick Continueselect the material Aluminum(or what ever you named it,there should be only one tochoose from) in the drop downboxenter Plane stress/strainthickness: 0.05. Click OK.Click Assign Section Button––––you will be prompted to select aregion. Click on the part.Click the Done button in thePrompt Area at the bottom ofthe screen.The Assign Section windowwill pop up. Select the SectionName you wish to assign to thisregion (there should be onlyone which you’ve previouslynamed, e.g., plate)click OK.8

H. Kim – FEA TutorialInstance Part Change Modules. In theModule drop-down boxbeneath the Tool Bar,select the Assembly.– note, the Canvas(main workinggraphical window)will be blank.Click the Instance Partbutton. The CreateInstance window willpop up.Select the part you wishto instance, e.g., the partwe named bracketpreviously. A redoutline of the bracketwill show.Click OK.9

H. Kim – FEA TutorialStep Change Modules. Select theStep module.Click the Create Step button.––– Edit Step window pops up,with the Basic tab active.– Create Step window pops upenter a name – use thedefault name Step-1.be sure Procedure type is setto General, and Static,General is highlighted in thelist. Click Continue.enter in a Description, e.g.,apply loadingClick the Incrementation tab.––under Increment Size, entervalue of 0.1 for Initial. Leavethe rest the same. Full loadcorresponds to an Incrementvalue of 1 (when TimePeriod is set to 1 under theBasic tab). Setting Initial to0.1 forces ABAQUS to startthe analysis by applying 1/10of the full load. This can alsobe left to default 1 value andthe software will auto-select.click OK.10

H. Kim – FEA TutorialLoad Change Modules. Select the Load module.Click the Create Load button.–––––––––––the Create Load window pops up.enter a Name, e.g., Load-1 is the defaultnamebe sure Step-1 (or what name you havegiven it) is selected in the Step drop downbox.be sure Mechanical is selected in Categoryunder Type for selected step, choosePressureclick ContinueUpon prompting to Select surfaces, mousepointer click on the lower portion of theright edge of the bracket, the region wepartitioned previously. It will highlight red.click Done.in the Edit Load window that pops up, besure to have Distribution set to Uniform,enter value of –1000 in Magnitude, and besure that (Ramp) is selected underAmplitude. This is a 1000 psi traction.click OK.You should get the image shown to theright. If your arrows are in the wrongdirection, you need to go back and be sureto specify a negative pressure.11

H. Kim – FEA TutorialBoundary Conditions Click the Create Boundary ��the Create Boundary Conditionwindow pops up.enter a name, e.g., fixed edgeunder Category, be sure thatMechanical is selected.under Type for selected step, chooseDisplacement/Rotationclick Continue.upon prompt to select regions, mousepointer click on the upper left verticaledge of the bracket. It will highlightred.click Done.Edit Boundary Condition window popsup.be sure Uniform is selected inDistribution.check-mark (click) boxes for u1 andu2, and leave the default values of 0.click OK.You should get the image shown to theright12

H. Kim – FEA TutorialSeed Mesh Change Modules. Select the Meshmodule.Click the Seed Part Instance button.This is an expandable button. Thereare many other functions within thisbutton that are useful for controllingmesh size.–– In the Prompt Area, enter a Globalelement size value of 0.5.Hit enter and you will see circularsymbols indicating nodal locationsalong the part edges.Click the Assign Element Typebutton.–––––––the Element Type window pops up.choose Standard in Element LibraryPlane Stress in FamilyLinear in Geometric Orderwithin the Quad tab, choose ReducedIntegration in Element Controls.Leave everything else at default values.the text in the lower box shouldindicate a CPS4R elementidentification. This is a 4-node reducedintegration quadrilateral element.click OK.13

H. Kim – FEA TutorialMesh Click Mesh PartInstance button.Note this button hasmany other functionswithin it (click-holdmouse button downon this button) suchas deleting mesh andmeshing regions of apart.Click Yes in thePrompt Area.Your mesh shouldlook like the imageshown to the right.14

H. Kim – FEA TutorialCreate JobSAVE YOUR WORK!!! Change Modules. Select the Jobmodule.Click Create Job button.Enter a name, e.g., bracketClick Continue.In the Edit Job window that popsup, enter a Description, e.g.,bracket analysisCheck that Full analysis,Background, and Immediatelyare selected.Click OK.15

H. Kim – FEA TutorialSubmit Job Click Job Manager button.In Job Manger window pops up,check that your job is selected, thenclick Submit.To run your model in Unix Server,click Write Input. It takes fewseconds to write “job name.inp”.Then:1.2.3.4.5. Under Status, it will read:1.2.3. Save you jobClose ABAQUS/CAEType “abaqus job job name”Enter Then, go to slide 18-Result (b) forvisualizing resultsSumbittedRunningCompletedClick Results.The Visualization module will runand the part in outline will beshown. It should look like theimage to the right.WriteInput16

H. Kim – FEA TutorialResults (a) - Visualization Click the PlotContoursbutton.A colorful plot ofVon Misesstresses appears.Color control canbe adjusted byclicking theContourOptions buttonand adjustingparameters.To select thescalar fieldquantity plotted,in the Menu Bar,select Result,Field Output,then choose thestress componentyou wish to plot,e.g., S11, or U1.Click OK.Strains, SpatialDisplacements,etc., can beselected throughField Output.17

H. Kim – FEA TutorialResults (b) - After Run Model on Unix Server Run ABAQUS/CAE orABAQUS/VIEWER.Open “job name.odb”.Click the Plot Contoursbutton.A colorful plot of VonMises stresses appears.Color control can beadjusted by clicking theContour Options buttonand adjusting parameters.To select the scalar fieldquantity plotted, in theMenu Bar, select Result,Field Output, then choosethe stress component youwish to plot, e.g., S11, orU1.Click OK.Strains, SpatialDisplacements, etc., can beselected through FieldOutput.18

H. Kim – FEA Tutorial 2 Helpful Tips Before Getting Started Use Exceed 9.0 or equivalent PC terminal software. HELP Online help manuals: abaqus_aae doc & - there is a “book” for CAE: “ABAQUS/CAE User's Manual

Related Documents:

ABAQUS/Explicitt * ABAQUS/Explicit Example Problems Manual, 5.8 ABAQUS ABAQUS/Standard Verification Manual, 6.2 ABAQUS/Explicit VerificationManual_6-2.pdf *ABAQUS/CAE ABAQUS ABAQUS/Standard.enc n Manual, 6.2 * ABAQUS/Explicit Benchmarking-Manual_6-2.pdf Benchmarking Manual, 6.2 * ABAQUS/CAE ABAQUS ABAQUS/Standard * ABAQUS/Explicit Examples .

ABAQUS Scripting User’s Manual 13. ABAQUS Scripting Reference Manual 14. ABAQUS Release Notes 15. ABAQUS Installation and Licensing Guide 3 1.2 Programs 1 INTRODUCTION 1.2 Programs ABAQUS/Standard and ABAQUS/Explicit are both available in the CUED teaching system comput-ers. ABAQUS/CAE is the pre-processor

4 KIM. 04 Konsep Mol 5 KIM. 05 Ikatan Kimia 6 KIM. 06 Larutan Asam Basa 7 KIM. 07 Reaksi Oksidasi dan Reduksi 8 KIM. 08 Pencemaran Lingkungan 9 KIM. 09 Termokimia 10 KIM. 10 Laju Reaksi 11 KIM. 11 Kesetimbangan Kimia 12 KIM. 12 Elektrokimia 13 KIM. 13 Hidrokarbon dan Minyak Bumi 14 KIM. 14 Senyawa Karbon 15 KIM. 15 Polimer

Buckling, Postbuckling and Collapse Analysis 12 Composites Modeler for Abaqus/CAE 13 Co-simulation with Abaqus and Dymola 15 Crashworthiness Analysis with Abaqus 16 CZone for Abaqus 17 Electromagnetic Analysis with Abaqus 18 Element Selection in Abaqus 19 Fitness-for-Service Analysis with Abaqus 20

4 KIM. 04 Konsep Mol 5 KIM. 05 Ikatan Kimia 6 KIM. 06 Larutan Asam Basa 7 KIM. 07 Reaksi Oksidasi dan Reduksi 8 KIM. 08 Pencemaran Lingkungan 9 KIM. 09 Termokimia 10 KIM. 10 Laju Reaksi 11 KIM. 11 Kesetimbangan Kimia 12 KIM. 12 Elektrokimia 13 KIM. 13 Hidrokarbon dan Minyak Bumi 14 KIM. 14 Senyawa Karbon

The Abaqus Student Edition consists of Abaqus/Standard, Abaqus/Explicit, and Abaqus/CAE only. Full HTML documentation is included. . Abaqus tutorials. 6 System requirements Operating system: Windows XP, Windows Vista, and Windows 7 Processor: Pentium 4 or higher

To start ABAQUS/CAE and display the online version of this tutorial: 1. If you did not already start ABAQUS/CAE, type abaqus cae. 2. From the Start Session dialog box that appears, select Start Tutorial. The ABAQUS/CAE main window and the online documentation window, turned to the chapter "Getting Started with ABAQUS/CAE," appear. 2.3 Getting help

An Introduction to Literary Criticism and Theory Before we begin our examination and study of literary theory, it is important that we define exactly what literary theory is and is not, identify some of the main characteristics of such, as well as identify some of the key differences between traditional “literary criticism” and “literary theory.” While literary criticism since the late .