MTS Multipurpose Simulated - Manual (Page 64)

Note:
The Simulation CD includes a sample test that is based on the FCG DCPD template. To run the
sample test, you must enter specific initial crack value parameters. For DCPD Voltage Option, select
On/Off; for Initial Crack Size, enter 17 mm; for Initial Crack Load, enter 3 kN.
DCPD Initial Crack Value Parameters
Description Parameter
On/Off—Turn the current that is applied to
the specimen on and off. DCPD Voltage Option
Reverse—Reverse the current that is applied
to the specimen.
Specify the crack size that was used to
perform the voltage to crack size calibration. Initial Crack Size
Specify the load level at which the voltage
is measured. Initial Crack Load
1. Review the parameters.
a. Click Yes to start with the parameters that are shown.
b. Click No to return to the main menu and to change parameters.
2. Click Run on the control panel to start the activity. Optionally, if you want to review or change parameters,
click Return to Main Menu.
3. When the activity is finished, the software returns to the main menu.
5.4.3.3.0 Precrack Specimen
1. Click Precrack in the Main Menu window.
2. Click Run on the control panel to start the precrack activity. Optionally, if you want to review or change
parameters, click Return to Main Menu.
To suspend the activity after it has started to run, click Hold. When you suspend the activity, data collection
stops and the application attempts to hold at the mean level.
To stop the activity, click Stop. When you stop the activity, the application immediately ramps to zero load
and saves the test data.
3. To review the process of the precrack activity, monitor the runtime displays.
4. Typically, the activity stops when a desired precrack parameter is achieved. In this case, review the activity
end result, and then click Close.
5. Check the precrack results, and if necessary, correct the values.
5.4.3.4.0 Run the Fatigue Crack Growth (FCG) Test
1. Click FCG Test.
64 MTS TestSuite
5.0 Running Simulation Tests