MTS Fatigue Analyzer - Manual (Page 66)

19. Click Edit.
The application opens the Calculation Editor window.
20. In the Calculation panel, click in the calculation at the end of the second parameter, StrainArray.
Make sure the cursor is before the closing parenthesis.
21. Type MarkerLoadingStart, MarkerLoadingEnd. Alternatively, in the Variables panel, select
MarkerLoadingStart and click Insert. Then select MarkerLoadingEnd and click Insert.
The completed calculation should be: LoadingModulus(StressArray, StrainArray, MarkerLoadingStart,
MarkerLoadingEnd).
22. Click OK.
23. Click the empty box to the left of the row with Identifier Unloading Modulus.
The application highlights the table row.
24. Click Edit.
The application opens the Calculation Editor window.
25. In the Calculation panel, click in the calculation at the end of the second parameter, StrainArray.
Make sure the cursor is before the closing parenthesis.
26. Type MarkerUnloadingStart, MarkerUnloadingEnd. Alternatively, in the Variables panel, select
MarkerUnloadingStart and click Insert. Then select MarkerUnloadingEnd and click Insert.
The completed calculation should be: UnloadingModulus(StressArray, StrainArray, MarkerUnloadingStart,
MarkerUnloadingEnd).
27. Click OK.
You must map the variables that you just created or changed in the Data Acquisition Activity Editor.
28. In Explorer, right-click the analysis run and select View Data Acquisition Activity Editor.
The application opens the Data Acquisition Activity Editor.
29. In the Select Data Acquisition Activity box, click the drop-down button and select Peak-Valley.
30. In the Additional Cycle Variable Calculations panel, select a variable to update and click the right arrow
button.
31. Repeat step 29 until all required variables are in the right-hand panel.
For the example, you should move all the variables you created.
32. Click the Refresh All Analysis Views button to update the variables in all analysis runs that use the
analysis definition.
33. Set up the Cycle Marker chart.
a) Click the left-most drop-down button above the work area and select Stress Array.
b) Click the second drop-down button above the work area and select Strain Array.
A graph is displayed in the work area. Add a marker line to the view.
c) Click the drop-down button for Index: 0 and select Marker Loading Start.
d) Click the drop-down button for Index: 1 and select Marker Loading End.
Add a marker value.
e) Click the drop-down button of the Value box and select Loading Modulus.
Add a marker line to the view.
66 MTS TestSuite™ Fatigue Analyzer User Guide
6.0 Data Analysis