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2.2.5.1 Creating a New Project

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IMPORTANT! Before preceding to ANSYS .rst file, read 5.1.2.1 Prepare ANSYS Interface and make sure that the interface has been prepared.

 

To create a new project,

 

1) Choose File>New..., or click New button on tool bar.  The New dialog box is displayed.  In the Select data input method group box, choose Read ANSYS .rst result file.  In the Use stress type group box, choose Averaged nodal stresses.

 

 

2) Click OK button.  The Open ANSYS .rst file dialog box pops up.  Select file.rst and click Open button.

 

 

The program starts to read data from file.rst.  Wait until the progress bar disappears.  

 

 

5) Now the project is created and the home window displays.

 

 

The Stress Time History chart above displays Principal Stress S1 and S3, as well as Stress Intensity Sint and von Mises stress Seq.  Uncheck all the check boxes on the right pane; click check box S1 Angle X, then the chart only displays the S1 angle with regard to X-axis curve:

 

 

It can be seen that the principal stress direction varies with time.  When calculating stress ranges, it is inaccurate subtracting two principal stress values directly if the directions of the two vector are different.  If Nonproportional load type is selected by the user in the next step, the program will automatically scan a critical plane, where principal vectors are projected to the critical plane normal and subtracted accordingly.  The critical plane is the plane generating the largest fatigue damage.

 

By default, in the home window, the program shows the charts of the node (element) with highest stress intensity (not necessarily the highest principal stress).  No change the node (element) number, click #Node (#Element) button, a dialog box will pop up. 

 

 

Enter the node number (or element number) to be plotted, click OK button.  The home window will display the charts of the node (element) selected. 

 

Note that if in step 1) the Averaged nodal stresses or Unaveraged nodal stresses was chosen, the #Node button will be displayed on the toolbar.  If Elemental stresses were chosen, the #Element button will be displayed on the toolbar.  They will not show up simultaneously.

 

6) Save your work by clicking File>Save... or Save button . The Save FatiguePlus file dialog box displays.  Select the desired folder in which to save the file.  Enter the file name of your choice in File name: box.  The Fatigue+ files are identified by .fp extension.  If the .fp extension is omitted, the program will add the extension automatically. Click Save button.

 

 

 

 

 

 

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