ansys-11 report

Chapter 11

Generating the Reportof Analysis

After completing this chapter, you will be able to:• Generate a report using the ANSYS Report Generator.• Estimate error in the solution due to element shape.

Learning Objectives

11-2 ANSYS for Designers

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ANSYS REPORT GENERATORIn any analysis problem, a considerable time is spent for the documentation of analysis results.To reduce the time involved in the preparation of documentation, you can use the ANSYSReport Generator. Using the ANSYS Report Generator, you can record images, numericaldata, tables, and other important information from the ANSYS Graphic User Interface, andlater on, you can compile these information automatically in the form of a report. The ANSYSReport Generator is also used to generate the HTML based report, which can be posteddirectly on the website. The method of generating the report of analysis using the ANSYSReport Generator can be broadly classified into three categories and these are as follows:

1. Starting the ANSYS Report Generator and then specifying the name of the report andworking directory to save the captured and the generated report.

2. Capturing images, animation, numerical data, tables, and other important information.

3. Preparing the report using the data collected in the previous step.

Starting the ANSYS Report GeneratorTo start ANSYS Report Generator, choose File > Report Generator from the Utility Menu;the Choose Report Location dialog box will be displayed, as shown in Figure 11-1. To specifythe location where the report directory will be created, choose the Report Directory displayedon the right of the Report Directory text box; the Browse for Folder dialog box will bedisplayed, as shown in Figure 11-2. In this dialog box, specify the location for the reportdirectory and then choose the OK button.

Enter the name of the report in the Report Directory text box. All captures and informationcollected while generating the report along with the generated report will be saved in thespecified folder in the Report Directory text box. The default name of the report directoryjobname_report.

If the specified report directory does not exist, ANSYS will create the report directory. In thisdirectory, you can save the report to be generated and the related data. If the specified reportdirectory already exists, then you can append the data to be collected with the existing datain the report directory or can overwrite the existing data with the new one. Select the desired

Figure 11-1 The Choose Report Location dialog box

Generating the Report of Analysis 11-3

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Figure 11-3 The ANSYS Report Generation dialog box

Figure 11-2 The Browse for Folder dialog box

radio button from the Choose Report Location dialog box to specify whether the data will beappended or overwritten.

After specifying the desired settings, choose the OK button from the Choose Report Locationdialog box; the ANSYS Report Generation dialog box will be displayed, as shown inFigure 11-3. Simultaneously, the ANSYS Graphics area will be resized and the backgroundcolor will change to white. As a result, now the captures generated using the ANSYS ReportGenerator will be of appropriate size and contrast for compiling them into a report.

NoteIf the specified report directory does not exist, the Directory Creation message box will bedisplayed, as shown in Figure 11-4. You can specify different report directories by choosing theNo button from the Directory Creation message box. On doing so, the Choose Report Locationdialog box will be displayed again. However, if you want ANSYS to create the specified reportdirectory, then choose the Yes button from the Directory Creation message box.


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Tip. Resizing the graphics area after the display of ANSYS Report Generationdialog box may cause problem in the size of the images while compiling the report.Therefore, it is highly recommended not to resize the graphics area once theANSYS Report Generation dialog box is displayed.

Figure 11-4 The Directory Creation message box

Capturing Images for the ReportYou can take the screen captures of the ANSYS graphics area using the Image Capturebutton from the ANSYS Report Generation dialog box. The images captured usingthis button are saved in the images folder that is created automatically in the report

directory specified by the user. The default name of the image file will be imageX.png, whereX is a number starting from 1 and its value increment by 1 whenever you take a new capture.The image files are saved in *.png format (Portable Network Graphics format).

To capture an image, choose the Image Capture buttonfrom the ANSYS Report Generation dialog box; theImage Capture dialog box will be displayed, as shownin Figure 11-5. Enter a caption for the image in theCaption edit box. The caption will be displayed belowthe image in the final report. The default caption forthe image will be jobname Image X, where X is anumber starting from 1 and its value will increment by 1when you take the next capture. Choose the OK buttonfrom the Image Capture dialog box; the image of the graphics area with white backgroundwill be saved in the Images folder under the report directory.

Capturing Animations for the ReportYou can record the animation displayed in the Postprocessing phase of ANSYS usingthe Animation Capture button in the ANSYS Report Generation dialog box. Theimage files that are compiled together to generate an animation are saved in the

animseq_X folder (where X is a number starting from 1 and its value will increment by 1whenever you record a new capture). This folder is crested automatically in the reportdirectory specified by the user. The default name of the image file will be frameX.png, whereX is a number starting from 0 and its value will increment by 1 with each consecutive frameof the animation. The other images related to animation player are saved in a folder namedanim_images in the report directory specified by the user.

Figure 11-5 The Image Capturedialog box


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Figure 11-6 The Warning message box

NoteThe POST1 Postprocessor must be activated to capture animation in the Postprocessing phaseof ANSYS. Otherwise, the Warning message box will be displayed stating that Animationcapture is only possible in POST1 with a SET command issued, refer to Figure 11-6.

To capture an animation, choose the Animation Capture button from the ANSYS ReportGeneration dialog box; the Animation Capture dialog box will be displayed, as shown inFigure 11-7. In this dialog box, enter a caption for the animation in the Caption edit box.The caption will be displayed below the animation in the final report. The default caption forthe animation will be jobname Animation X, where X is a number starting from 1 and itsvalue will increment by 1 whenever you record a new animation. Select the required type ofanimation to be captured from the list box displayed in the Animation Capture dialog box.Now, choose the OK button. Depending upon the option selected from the list box, anassociated Animation Settings dialog box will be displayed. For example, if you select theDeformed Shape option from the Animation Capture dialog box, the Animate DeformedShape dialog box will be displayed. In this dialog box, specify the desired settings and choosethe OK button; the preview of the animation will be displayed once in the graphics area andthe ANSYS Report Generator will save the animation in the specified report directory.

Figure 11-7 The Animation Capture dialog box


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Capturing Data Tables for the ReportYou can capture a predefined data table or a customized table in ANSYS using theTable Capture button of the ANSYS Report Generation dialog box. The tablecaptured using this button will be saved in the report directory of the file named

ansysTable.js. Later on, the data saved in this file can be retrieved while compiling thereport. The captured table will be saved with the name table_X, where X is a number startingfrom 1 and its value will increment by 1 whenever you capture the next table.

To capture a data table, choose the Table Capture button from the ANSYS Report Generationdialog box; the Table Capture dialog box will be displayed; as shown in Figure 11-8. In thisdialog box, enter a caption for the table in the Caption edit box. The caption will be displayedbelow the table in the final report. The default caption for the data table will be jobnameTable X, where X is a number starting from 1 and its value will increment by 1 whenever youcapture the next table. According to your requirement, select the predefined table from thelist box displayed in the Table Capture dialog box and then choose the OK button. TheANSYS Report Generator will save the table.

Creating and Capturing User-defined TablesTo create and capture user-defined tables, select the Custom Table option from the list boxin the Table Capture dialog box. Now, specify the numbers of columns and rows in theColumns and Rows spinner of the Custom Table Size area, respectively. Next, choose theOK button; the Custom Table Definition window will be displayed, as shown in Figure 11-9.Enter the desired data in the cells of the table and choose the Write button from the CustomTable Definition window to accept the defined table. The user-defined table will be saved inthe ansysTable.js file that can be used later for compiling the report.

Figure 11-8 The Table Capture dialog box


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Figure 11-9 The Custom Table Definition window

Capturing Lists for the ReportYou can capture the lists of results in ANSYS using the Listing Capture button of theANSYS Report Generation dialog box. The lists captured using this button will besaved in the report directory in a file named ansysListings.js. Later on, these lists

can be retrieved while compiling the report. The captured list will be saved with the namelisting_X, where X is a number starting from 1 and its value will increment by 1 wheneveryou capture the next result listing.

To capture the result listings, choose the Listing Capture button from the ANSYS ReportGeneration dialog box; the Listing Data Capture dialog box will be displayed, as shown inFigure 11-10. In this dialog box, enter a caption for the result listing in the Caption edit box.The caption will be displayed below the list in the final report. The default caption for the listwill be jobname Listing X, where X is a number starting from 1 and its value will incrementby 1 whenever you capture the next answer list. Next, enter the ANSYS command that willgenerate the desired result listing in the ANSYS Command edit box; the corresponding listof results will be created. For example, if you want to capture lists for nodal loads, enterPRNLD in the ANSYS Command edit box. Similarly, enter PRNSOL to capture the list ofnodal solution, enter PRRSOL to capture the lists of reaction forces, and so on. Next, choosethe OK button from the Listing Data Capture dialog box; ANSYS will record the specifiedlisting in the ansysListings.js file.

Compiling the ReportAfter capturing all the required information of analysis, you need to compile them inthe form of a report. To generate the report, choose the HTML Report Assemblerbutton from the ANSYS Report Generation dialog box; the HTML Report Assembler

dialog box will be displayed, as shown in Figure 11-11. The options in this dialog box arediscussed next.

Figure 11-10 The Listing Data Capture dialog box


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Figure 11-11 The HTML Report Assembler dialog box

TEXTThe TEXT button is used to enter the HTML formatted text in the report. To do so, choosethis button from the HTML Report Assembler dialog box; the HTML Text edit box will beadded to the right pane of the HTML Report Assembler dialog box. Next, enter the desiredtext in the HTML Text edit box; the text entered will be displayed in the report as it is.

HTML FILEThe HTML FILE button is used to include the data in the report from an existing HTMLfile. To do so, choose the HTML FILE button from the HTML Report Assembler dialogbox; the Open dialog box will be displayed. Select the HTML file that you want to import


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into the report and choose the Open button; the data from the specified HTML file will beimported into the report and displayed on the right pane of the HTML Report Assemblerdialog box.

IMAGEThe IMAGE button is used to insert an image into the report. Note that only the image filesthat are saved in the .png, .jpeg, .gif format can be imported into the report. To insert animage, choose the IMAGE button from the HTML Report Assembler dialog box; the Opendialog box will be displayed. Select the image file that you want to insert into the report andchoose the Open button; the specified file will be copied to the images folder of the reportdirectory and inserted into the report. Also, the preview of the inserted image will be displayedon the right pane of the HTML Report Assembler dialog box.

DYNAMIC DATAIf you want the result to be inserted into the report on executing an ANSYS command, thenchoose the DYNAMIC DATA button from the HTML Report Assembler dialog box. Ondoing so, the ANSYS command edit box will be added to the right pane of the HTMLReport Assembler dialog box. Enter a command in this edit box; the corresponding resultwill be inserted into the report. Note that you can also add more than one command in thisedit box.

REPORT HEADINGThe REPORT HEADING button is used to specify the title, author name, and subtitle of thereport. To do so, choose the REPORT HEADING button from the HTML Report Assemblerdialog box; the Report Heading dialog box will be displayed, as shown in Figure 11-12.Enter the title, author name, and subtitle in the respective edit boxes and choose the OKbutton; the preview of the data entered will be displayed on the right pane. Figure 11-13displays the preview of a report heading.

Figure 11-12 The Report Heading dialog box

Figure 11-13 The preview of the report heading


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REPORT IMAGESThe REPORT IMAGES list box is used to insert the captured images and animation in thereport. The preview of all images and animation captured for this report will be displayed inthe REPORT IMAGES list box. If you move the cursor to any image in this list box, thecaption of that particular image or animation will be displayed with the cursor. To insert animage or animation into a report, click on the required image or animation; the specifiedimage will be inserted into the report. Also, the preview of the inserted image will be displayedon the right pane of the HTML Report Assembler dialog box.

REPORT TABLES/REPORT LISTsThe REPORT TABLES/REPORT LISTS button is used to insert the saved tables/result listsinto the report. The tables/result lists saved in this report are displayed in the form of buttonsin the REPORT TABLES/REPORT LISTS list box. Some starting characters of the captionspecified while capturing the table/result listing are displayed on these buttons. If you movethe cursor over any button in these list boxes, the caption of that particular table/result listingwill be displayed with the cursor. To insert the table/result listing into the report, choose therequired button; the specified table/result listing will be inserted into the report, and theicon for the table/result listing and the corresponding caption will be displayed on the rightpane of the HTML Report Assembler dialog box.

Preview ReportThe Preview Report button is used to preview the compiled report. To do so, choosethe Preview Report button from the HTML Report Assembler dialog box; a separatewindow of the default internet explorer will open and the preview of the report will

be displayed in that window. After previewing the report, close the internet explorer.

Delete itemThe Delete item button is used to delete the specified item from the report. To do so,select the report entry to be deleted from the right pane of the HTML ReportAssembler dialog box and then choose the Delete item button; the selected report

entry will be deleted.

Move item up/Move item downThe Move item up/Move item down button is used to change the position of thereport entity in the report. To do so, choose the Move item up button to move theselected report entry up. Similarly, choose the /Move item down button to move itdown.

NoteYou cannot change the position of the entries made using the REPORT HEADING tool. Theseentries will always be displayed at the top of the report.

To change the caption of entities inserted into the report, click in the edit box that is displayedat the lower side of each report entity on the right pane of the HTML Report Assemblerdialog box. Then, enter the text that you want to display with the corresponding entity in thereport.


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Figure 11-14 The Settings dialog box

You can insert a page break into the report by selecting the Insert page break for MicrosoftIE check box from the right pane of the HTML Report Assembler dialog box. On doing so,the content of the report will move to the next page while printing it.

After compiling the report, choose File > Save from the Utility Menu of the HTML ReportAssembler dialog box; the report will be saved to the specified report directory by the defaultname jobname_report.html. To save the report and close the HTML Report Assemblerdialog box simultaneously, choose File > Save and Close from the Utility Menu of theHTML Report Assembler dialog box. You can upload this *.html file directly on internetusing any web hosting program.

Changing the Default Settings of the ANSYS Report GeneratorYou can change the settings that affect the normalworking of the ANSYS Report Generator. To do so,choose the Settings button from the ANSYS ReportGeneration dialog box; the Settings dialog box willbe displayed, as shown in Figure 11-14. The optionsin the Settings dialog box are discussed next.

The Modify graphics window background check boxis selected by default in this dialog box. As a result,when the ANSYS Report Generation dialog box isinvoked, the background of the ANSYS graphics areachanges to white. Clear this check box if you want to retain the default background whilecapturing the data using the ANSYS Report Generator dialog box.

The Write capture commands to the log file check box is also selected by default. As a result,the information of all data captured using the ANSYS Report Generator dialog box is writtenin the ANSYS log file. Clear this check box, if you do not want this information to be writtenin the ANSYS log file.

The Write report to the log file check box is also selected by default. As a result, theinformation regarding the compilation of report using the HTML Report Assembler tool iswritten in the ANSYS log file. Clear this check box, if you do not want this information to bewritten in the ANSYS log file.

The Percentage of Graphics Size for Animation spinner is used to specify the percentage ofgraphics area to be used for capturing images and animations using the ANSYS ReportGeneration dialog box. 100 is set as the default value in the Percentage of Graphics Sizefor Animation spinner and therefore, captures and animations are resized to cover 100% ofthe graphics area.

NoteAny changes made using the Settings dialog box will become the default settings for the use ofthe ANSYS Report Generation in future, unless you change the settings again.


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ERROR ESTIMATION IN SOLUTIONError estimation is used to list the estimated solution errors that occur because of poor meshquality. The error estimation process is based on discontinuity in the value of stress (staticanalysis) or heat flux (thermal analysis) at the boundaries of the element. Error estimation isvalid only for:

1. POST1 (General Postprocessor)2. Linear static structural and linear steady state thermal analysis3. Solid (2D and 3D) and shell elements4. Full graphics (Powergraphics must be turned off)

NoteIf the above mentioned conditions are not met, the calculation of error estimation will be turnedoff automatically.

In ANSYS, three types of errors occur due to the deformed element shape. These types arediscussed next.

Percentage Error in Energy Norm (SEPC)

The SEPC is used to list errors in stress, displacement, temperature, or thermal flux in amodel. After solving the analysis problem, choose General Postproc > List Results > PercentError from the Main Menu; the SEPC value will be displayed in the Legend header ofdeformed shape display, refer to Figure 11-15.

Also, you can list the SEPC value separately in a window. To do so, choose General Postproc >List Results > Percent Error from the Main Menu; the PRERR Command window will bedisplayed with the SEPC value, as shown in Figure 11-16.

Figure 11-15 The SEPC value displayed in the Legend header

Figure 11-16 The PRERR Command window

Main Menu: General Postproc > List Results > Percent Error


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Note that the SEPC value should be less than 10%. If this value is more than 10%, you mustcheck the point loads and stress singularities, and then try to reduce this value. But, if theSEPC value still remains more than more than 10% even after checking point loads andstress singularities, then plot the element energy error (SERR) contour.

Element Energy Error (SERR)

The SERR is the basic error measure from which other error quantities are derived. SERR isthe energy associated with the stress that is mismatched at the nodes of the element. To plotthe element energy error (SERR) contour, choose General Postproc > Plot Results > ContourPlot > Element Solu from the Main Menu; the Contour Element Solution Data dialog boxwill be displayed. Click on the Error Estimation node in this dialog box; the node will expandand display two sub-options. Select the Structural Error Energy sub-option and then choosethe OK button; the element energy error (SERR) contour will be displayed in the graphicsarea.

The areas having high SERR value need to be meshed densely (mesh refinement). Note thatthe SERR value will be high at stress singularities, therefore, you must ignore these areas.As mentioned earlier, the red color indicates the maximum stress zone, whereas the bluecolor indicates the minimum stress zone. The element energy error (SERR) contour will helpyou locate the trouble regions.

Element Stress Deviations (SDSG)

The SDSG is used to measure the amount by which an element stress disagrees with the stressaverages at its nodes. To plot the element stress deviation (SDSG) contour, choose GeneralPostproc > Plot Results > Contour Plot > Element Solu from the Main Menu; theContour Element Solution Data dialog box will be displayed. Click on the Error Estimationnode; the node will expand and display two sub-options. Select the Absolute MaximumStress Variation option and then choose the OK button; the element stress deviation (SDSG)contour will be displayed in the graphics area.

Maximum and Minimum Stress Bounds (SMXB and SMNB)The stress bounds are used to determine the effect of mesh discretization error atmaximum stress. The stress bound values (SMXB and SMNB) are displayed in the Legendheader of the stress contours plot, as shown in Figure 11-17.

NoteThe maximum stress value should be less than the maximum stress bound (SMXB) value.

Main Menu: General Postproc > Plot Results > Contour Plot > Element Solu

Main Menu: General Postproc > Plot Results > Contour Plot > Element Solu


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TUTORIAL

In this tutorial, you will first calculate the maximum deflection and stress in members, displaydeflection, display stress in structure member, shown in Figure 11-18, display it, and thengenerate the report using the ANSYS Report Generator. The parameters to be used for thetutorial are given below:

Force: F=10000 N Material properties: Young’s Modulus = 2.1 x 105 N/mm2

Poisson’s Ratio = 0.3Moment of Inertia Izz: 211000

(Expected time: 1 hr)

The following steps are required to complete this tutorial:

a. Invoke the ANSYS Product Launcher window and start a new job.

Figure 11-18 Structure for Tutorial 1

Tutorial 1

Figure 11-17 The Legend header of the stress contoursplot showing the stress bound values (SMXB and SMNB)


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b. Set preferences and select the analysis type.c. Create keypoints.d. Create lines.e. Define the element type for the members of the structure.f. Define real constants.g. Define material properties for the structure.h. Mesh the structure.i. Start the ANSYS Report Generator.j. Capture the image of the meshed 3D model.k. Apply load on the beam.l. Capture the image of the structure with applied boundary conditions.m. Solve the analysis problem.n. Postprocess results.o. Capture the table listing, reaction forces, and displacements.p. Capture the listing of all constraints acting on the selected items.q. Compile the HTML report using all captured entities.r. Save the job and exit the ANSYS session.

Invoking the ANSYS Product Launcher Window and Starting a NewProject

First, you need to start the ANSYS Product Launcher window and then a new file.

1. Choose Start > All Programs (or Programs) > ANSYS 11.0 > ANSYS Product Launcherfrom the start menu; the ANSYS Product Launcher window is invoked.

2. Set the following options in the ANSYS Product Launcher window:

Simulation Environment: ANSYSLicense: ANSYS Multiphysics

3. In the File Management tab, set the options as follows:

Working Directory:C:\ANSYS\c11Job Name: tut01

4. Choose the Run button from the ANSYS Product Launcher window; the ANSYS session(ANSYS window along with the output window) gets started.

5. Choose File > Change Title from the Utility Menu; the Change Title dialog box isdisplayed. Enter the name tut01 in the Enter new title edit box and choose the OKbutton.

Setting Preferences and Selecting the Analysis TypeNext, you need to set preferences and select the analysis type before proceeding to anyanalysis. This filters out the menu choices.


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1. Choose Preferences from the Main Menu; the Preferences for GUI Filtering dialogbox is displayed. Select the Structural check box and choose the OK button; the analysispreference is set.

2. Next, to select the analysis type, choose Solution > Analysis Type > New Analysis fromthe Main Menu; the New Analysis dialog box is displayed.

3. By default, the Static radio button is selected. If it is not selected, select it and choose theOK button; the analysis type is set.

Creating KeypointsNow, you need to create keypoints to define theline.

1. Choose Preprocessor > Modeling > Create >Keypoints > In Active CS from the Main Menu;the Create Keypoints in Active CoordinateSystem dialog box is displayed.

2. In this dialog box, choose the Apply button tocreate a keypoint at the 0,0,0 location. Next, createother keypoints using the coordinates shown inFigure 11-19.

3. Choose the OK button after entering coordinates of the last keypoint; keypoints arecreated. To view all keypoints on the screen, choose the Fit View button from the ModelControl toolbar.

NoteYou can turn the display of the keypoint and line numbers on by selecting the Keypoint numbersand Line numbers check boxes in the Plot Numbering Controls dialog box. To invoke thisdialog box, choose PlotCtrls > Numbering from the Utility Menu.

Creating Lines1. Choose Preprocessor > Modeling > Create > Lines > Lines > Straight Line from the

Main Menu; the Create Straight Line dialog box is displayed.

2. Select the keypoint numbers 1 and 2; the line is created. Next, select keypoints from thegraphics area, as shown in Figure 11-20, to create other lines. Next, choose the OKbutton after creating the last line. Figure 11-21 shows the final structure created.

Defining the Element Type for Members of the StructureNext, you need to define the element type for members of the structure. To do so, youneed to use the 2D elastic 3 element (Beam 3).

Figure 11-19 The coordinate valuesfor keypoints


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1. Choose Preprocessor > Element Type > Add/Edit/Delete from the Main Menu; theElement Types dialog box is displayed.

2. Choose the Add button from this dialog box; the Library of Element Types dialog boxis displayed.

3. Select the Beam category from the element category list area of the Library of ElementTypes dialog box. Next, select the 2D elastic 3 element type from the element type listarea.

4. Choose the OK button from the Library of Element Types dialog box and then choosethe Close button from the Element Types dialog box; the 2D elastic 3 element type isselected.

NoteIn ANSYS, the element (2D elastic 3) is known as “BEAM 3”.

Defining Real ConstantsNext, you need to define the real constants for the beam.

1. Choose Preprocessor > Real Constants > Add/Edit/Delete from the Main Menu; theReal Constants dialog box is displayed.

2. Choose the Add button; the Element Type for Real Constants dialog box is displayed.

3. Choose the OK button; the Real Constants for Beam 3 dialog box is displayed. Enterthe following values in this dialog box:

Cross-sectional area = 1000 Area moment of inertia = 211000Total beam height = 50

4. Choose OK and then the Close button; the real constants are set.

Figure 11-20 Keypoints for creating lines Figure 11-21 The final structure created


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Defining Material Properties for the BeamNext, you need to define material properties for the beam.

1. Choose Preprocessor > Material Props > Material Models from the Main Menu; theDefine Material Model Behavior dialog box is displayed.

2. Next, double-click on the Structural > Linear > Elastic > Isotropic in the MaterialModels Available area; the Linear Isotropic Properties for Material Number 1 dialogbox is displayed.

3. Enter the following values for material properties:

EX = 2.1e5 PRXY = 0.3

4. Choose the OK button from the Linear Isotropic Properties for Material Number 1dialog box. Next, choose Material > Exit from the Define Material Model Behaviordialog box. The material properties are assigned to the beam.

Meshing the StructureNext, you need to mesh the structure using the MeshTool dialog box.

1. Choose Preprocessor > Meshing > MeshTool from the Main Menu; the MeshTooldialog box is displayed.

2. Select the Lines option from the Element Attributes drop-down list and choose the Setbutton; the Line Attributes dialog box is displayed. Also, you are prompted to select theline to assign attributes.

3. Choose the Pick All button from the Line Attributes dialog box; all the line membersare selected in the graphics area and the modified Line Attributes dialog box is displayed.In this dialog box, choose the OK button to assign default attributes.

4. In the Size Controls area of the MeshTool dialog box, choose the Set button that is nextto the Lines option; the Element Size on Picked Lines dialog box is displayed and youare prompted to select the line for size assignment.

5. Choose the Pick All button from the Element Size on Picked Lines dialog box; all theline members are selected in the graphics area and the Element Sizes on Picked Linesdialog box is displayed.

6. In this dialog box, enter 100 in the No. of element divisions edit box and choose the OKbutton. You will notice that each line member is divided into 100 equal parts.

7. Choose the Mesh button from the MeshTool dialog box; the Mesh Lines dialog box isdisplayed and you are prompted to select the line to be meshed.


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8. Select all line members of the structure from the graphics area by choosing the Pick Allbutton from the Mesh Lines dialog box; the line is meshed. Next, choose the Closebutton from the MeshTool dialog box.

9. To see the shape and size of the meshed line, choose PlotCtrls > Style > Size and Shapefrom the Utility Menu; the Size and Shape dialog box is displayed. In this dialog box,select the Display of element check box and then choose the OK button; the 3D modelof the meshed beam is displayed in the graphics area.

10. Choose the Isometric View button from the Modal Control toolbar. Figure 11-22 showsthe isometric view of the 3D meshed structure.

Starting the ANSYS Report GeneratorTo capture important information related to the report, you need to invoke the ANSYSReport Generator and specify the name and location of the report directory where allinformation related to the report is stored.

1. Choose File > Report Generator from the UtilityMenu; the Choose Report Locationdialog box is displayed.

2. Next, choose the Report Directory (...) button on the right of the Report Directory textbox; the Browse for Folder dialog box is displayed.

3. Specify the location where you want to save all files related to the report to be generated.Next, choose the OK button from the Browse for Folder dialog box.

4. Enter tut01_report in the Report Directory edit box of the Choose Report Locationdialog box and then choose the OK button; the Directory Creation message box isdisplayed.

Figure 11-22 Isometric view of the 3D meshed structure


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5. Choose the Yes button from the Directory Creation message box; a folder namedtut01_report is created at the specified location.

This folder acts as a report directory where all information captured using the ANSYSReport Generation dialog box will be saved automatically.

Capturing the Image of the Meshed 3D ModelNow, you need to capture the image of the meshed 3D model using the ANSYS ReportGeneration dialog box.

1. Choose the Image Capture button from the ANSYS Report Generation dialogbox; the Image Capture dialog box is displayed.

2. Enter the text in the Caption edit box, as shown in Figure 11-23, and choose the OKbutton; the capture of the 3D meshed model gets saved in the specified report directory.

NoteIt is recommended not to close the ANSYS Report Generator dialog box because you caninvoke other tools and continue working on the specified analysis problem while the ANSYSReport Generator dialog box is still open.

Applying Load on the StructureNow, you need to apply load on the structure, in which both free ends of vertical membersare fixed and a downward force of 1000N is acting on the horizontal member.

1. Choose Preprocessor > Loads > Define Loads > Apply > Structural >Displacement > On Nodes from the Main Menu; the Apply U,ROT on Nodes dialogbox is displayed. Also, you are prompted to select the nodes for displacement constraints.

2. Select the nodes at the lower end of both the vertical members of the structure andchoose the OK button; the modified Apply U,ROT on Nodes dialog box is displayed.

3. Select the UX and UY options from the DOFs to be constrained list box and choose theOK button; the DOF constraints are applied at the lower end of both the vertical membersof the structure.

Figure 11-23 The Image Capture dialog box


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Figure 11-24 Structure members withapplied forces


Next, you need to apply force on the horizontal member of the structure.

4. Choose Preprocessor > Loads > Define Loads > Apply > Structural > Force/Moment >On Keypoints from the Main Menu; the ApplyF/M on KPs dialog box is displayed.

5. Select the keypoint number 3 on the horizontalmember (intermediate keypoint) and choose theOK button from the Apply F/M on KPs dialogbox; the modified Apply F/M on KPs dialog boxis displayed.

6. Select the FY option from the Direction offorce/mom drop-down list and enter -10000 inthe Force/moment value edit box.

7. Choose the OK button; the force is applied, asshown in Figure 11-24.

Capturing the Image of the Structure with Applied BoundaryConditions

Now, you need to capture the image of the structure with various forces acting on membersusing the ANSYS Report Generator.


2. Enter the text in the Caption edit box, as shown in Figure 11-25, and choose the OKbutton. The capture of the 3D meshed model gets saved in the specified report directory.

Solving the Analysis ProblemNext, you need to solve the analysis problem.

1. Choose Solution > Solve > Current LS from the Main Menu; the /STATUS Commandwindow and Solve Current Load Step dialog box are displayed. The /STATUS Commandwindow displays the solution options.


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Figure 11-26 The deformed shape of the structure

2. Choose the OK button from the Solve Current Load Step dialog box; the Note windowis displayed stating that the solution is done. Next, close the Note and /STATUS Commandwindows.

Postprocessing ResultsNext, you need to postprocess the results of analysis.

Deformed Shape

1. Choose General Postproc > Plot Results > Deformed Shape from the Main Menu; thePlot Deformed Shape dialog box is displayed.

2. Select the Def + undeformed radio button from this dialog box and choose the OKbutton; the deformed shape of the beam is displayed in the graphics area. Also, themaximum value of deformation (DMX) is displayed in the Legend header, refer toFigure 11-26.

Maximum Deformation = 2.575 mm

Capturing the Image and Recording the Animation of the DeformedShape

Now, you need to capture the image of the deformed shape of the structure and alsocapture the animation of the deformed shape sequence using the ANSYS ReportGenerator.


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2. Enter the text in the Caption edit box, as shown in Figure 11-27, and choose the OKbutton. The capture of the 3D meshed model is saved in the specified report directory.

3. Choose the Animation Capture button from the ANSYS Report Generation dialogbox; the Animation Capture dialog box is displayed.

4. Enter the text in the Caption edit box and select the Deformed Shape option from thelist box, as shown in Figure 11-28 . Next, choose the OK button; the Animation DeformedShape dialog box is displayed.

5. Enter 20 in the No. of frames to create edit box and 0.2 in the Time delay (seconds) editbox. Next, select the Def + undeformed radio button and choose the OK button fromthe Animation Deformed Shape dialog box.The captured animation sequence for thedeformed shape is saved in the specified report directory.


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Figure 11-29 The stress developed in the structure

Maximum and Minimum Stresses

1. Choose General Postproc > Plot Results > Contour Plot > Nodal Solu from the MainMenu; the Contour Nodal Solution Data dialog box is displayed.

2. In this dialog box, choose Nodal Solution > Stress > von Mises stress and choose theOK button; the stress contour is displayed in the graphics area. Also, the maximum andminimum values of stresses (SMN and SMX) are displayed in the Legend header, referto Figure 11-29.

Maximum Stress = 0.014596 N/mm2

Minimum Stress = 174.81 N/mm2

NoteIf stress contours are not displayed in the graphics area, and the maximum and minimum valueof stresses are not shown in the Legend header, choose PlotCtrls > Style > Size and Shapefrom the Utility Menu; the Size and Shape dialog box is displayed. Select the Display ofelement check box from this dialog box and choose the OK button.


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Capturing the Image and Recording the Animation of the StressContours

Now, you need to capture the image and the animation of the stress contours using theANSYS Report Generator.

1. Choose the Image Capture button from the ANSYS Report Generator dialogbox; the Image Capture dialog box is displayed.

2. Enter the text in the Caption edit box, as shown in Figure 11-30, and choose the OKbutton. The capture of the 3D meshed model gets saved in the specified report directory.

3. Choose the Animation Capture button from the ANSYS Report Generation dialogbox; the Animation Capture dialog box is displayed.

4. Enter the text in the Caption edit box and select the Deformed Results option from thelist box, as shown in Figure 11-31. Next, choose the OK button; the Animation NodalSolution Data dialog box is displayed.

5. Enter 20 in the No. of frames to create edit box and 0.2 in the Time delay (seconds) editbox. Select Stress and von Mises SEQV options from the list boxes in the ContourNodal Solution Data area of the Animation Nodal Solution Data dialog box, refer toFigure 11-32. Next, choose the OK button from the Animation Nodal Solution Datadialog box; the capture of the animation sequence for the stress distribution is saved inthe specified report directory.



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Figure 11-32 The Animate Nodal Solution Data dialog box

Capturing the Table Listing of Reaction ForcesNext, you need to capture the table listing of the reaction forces using the ANSYS ReportGenerator.

1. Choose the Table Capture button from the ANSYS Report Generation dialogbox; the Table Capture dialog box is displayed.

2. Enter the text in the Caption edit box of the Table Capture dialog box, as shown inFigure 11-33. Select the Sum of the reaction forces option from the list box in the TableCapture dialog box and choose the OK button. The reaction forces data is saved to thespecified report directory.

Capturing the Listing of all Constraints Acting on the Selected ItemsNext, you need to capture the listing of all constraints acting on the selected items usingthe ANSYS Report Generator.

1. Choose the Listing Capture button from the ANSYS Report Generation dialogbox; the Listing Data Capture dialog box is displayed.

2. Enter the text in the Caption edit box and enter the command in the ANSYS Commandedit box, as shown in Figure 11-34. Choose the OK button from the Listing Data Capturedialog box; the list of external forces acting on members of the structure is saved in a filenamed ansysListings.js in the specified report directory.


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Figure 11-34 The Listing Data Capture dialog box

Compiling the HTML Report Using all Captured Entities1. Choose the HTML Report Assembler button from the Assembly Report

Generation dialog box; the HTML Report Assembler dialog box is displayed.

2. Next, choose the TEXT button from the HTML Report Assembler dialog box; the HTMLText edit box is added to the right pane of the HTML Report Assembler dialog box.Enter “This analysis is performed for the problem described in the Tutorial 1 of Chapter11.” in the HTML Text edit box.

3. Choose the REPORT HEADING button from the HTML Report Assembler dialogbox; the Report Heading dialog box is displayed. In this dialog box, enter the requiredtext in the respective edit boxes, as shown in Figure 11-35, and then choose the OKbutton; the specified information is displayed at the top of the report in the right pane ofthe HTML Report Assembler dialog box.

Figure 11-33 The Table Capture dialog box


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4. Select the animations and images listed in the REPORT IMAGES list box one by one.All selected animations and images are inserted into the report. Also, the preview of theinserted animations and images is displayed in the right pane of the HTML ReportAssembler dialog box.

5. Select the Sum of the reac button from the REPORT TABLES list box; the specifiedtable list is inserted into the report, and the icon for the table listing and caption isdisplayed on the right pane of the HTML Report Assembler dialog box.

6. Choose the List of the con button from the REPORT LISTINGS list box; the specifiedresult listing will be inserted in the report and the icon for the result listing and captionis displayed in the right pane of the HTML Report Assembler dialog box.

7. Now, use the Move item up and Move item down buttons to rearrange thereport entities in the following sequence:

1. Report heading2. Text3. Image with caption “3D meshed model of the structure”4. Image with caption “Structure members with the applied forces”5. Report table with caption “Sum of the reaction forces”6. Result listing with caption “List of the constraints on selected items”7. Image with caption “Deformed and undeformed shape of the structure”8. Animation with caption “Animation for the deformed shape of the structure”9. Image with caption “Maximum and minimum stress in the members of the structure”10. Animation with caption “Animation for the maximum and minimum stress”

Figure 11-36 displays the HTML Report Assembler dialog box after rearranging allreport entities.

8. Choose the Preview Report button; a separate window of the default internetexplorer is invoked and the preview of the report is displayed in that window.Figure 11-37 displays the Microsoft Internet Explorer window with the previewof the report.

9. After previewing the report, close the internet explorer window.

Figure 11-35 The Report Heading dialog box


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Figure 11-36 The HTML Report Assembler dialog box

10. Choose File > Save option from the Utility Menu of the HTML Report Assemblerdialog box. The report is saved to the specified report directory by the default nametut01_report with a file extension *.html.

11. Now, choose the Close button to exit the HTML Report Assembler dialog box.

Saving the Job and Exiting the ANSYS Session1. Choose the SAVE_DB button from the ANSYS Toolbar; the job is saved.


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Figure 11-37 The Microsoft Internet Explorer window with the preview of the generated report

2. Choose QUIT button from the ANSYS Toolbar; the Exit from ANSYS dialog box isdisplayed. By default, the Save Geom+Loads radio button is selected. Now, select theSave Everything radio button and choose the OK button; the ANSYS session is closed.

Answer the following questions and then compare them to those given at the end of thischapter:

1. ANSYS report is saved with the __________ file extension.

2. The __________ is the default name of the report directory where all files related to thereport are saved.

3. The __________ button is used to compile a report.

4. Animations can be captured in the Solution phase of ANSYS. (T/F)

5. The SEPC value should always be less than 10%. (T/F)

Self-Evaluation Test


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Figure 11-38 Beam for Exercise 1

Exercises

Exercise 1

Review QuestionsAnswer the following questions:

1. The report file generated using the ANSYS Report Generator can be uploaded directlyon the Internet. (T/F)

2. The images captured using the ANSYS Report Generator are saved with a __________file extension.

3. You can capture result listings in ANSYS using the Listing Capture button. (T/F)

4. The maximum stress value should be less than the maximum stress bound (SMXB) value.(T/F)

5. You cannot insert a customized table in the ANSYS Report Generator. (T/F)

Perform an analysis for the beam shown in Figure 11-38. Then calculate the maximumdeflection and the maximum and minimum stresses developed in the beam. Also, generatethe report of the analysis using the ANSYS Report Generator.

Force: P=10000 N/mm2 Material properties: Young’s Modulus = 2.1 x 105 N/mm2

Poisson’s Ratio = 0.3 (Expected time: 30 min)


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Exercise 2

Figure 11-39 Structure for Exercise 2

Perform an analysis for the structure shown in Figure 11-39. Then, calculate the deflectionand the stress developed in the members of the structure. Also, generate the report of theanalysis using the ANSYS Report Generator.

Force: F=100 N Material properties: Young’s Modulus = 2 x 105 N/mm2

Poisson’s Ratio = 0.27 (Expected time: 30 min)

Answers to Self-Evaluation Test1. .html, 2. jobname_report, 3. HTML Report Assembler, 4. F, 5. T

ansys-11 report

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