MTS Fracture Template - Manual (Page 84)

3. Click Run on the control panel to start the test activity. Optionally, if you want to review or change
parameters, click Return to Main Menu.
To suspend the activity after the activity starts, 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.
4. Review the process of the test activity by monitoring the runtime displays.
• On the CTOD Test tab, monitor Force versus COD plot.
• On the CTOD Statistics tab, monitor Time, Force, COD, and Displacement values in the array table.
5. Typically, the activity stops when a desired test termination parameter is achieved. In this case, review
the activity end result, and then click Close.
Perform Fatigue Crack Mark
1. Click Crack Size Check in the Main Menu window.
2. In the Main Menu window, click Fatigue Crack Mark.
3. Specify the Crack Growth Parameters.
This test activity uses fatigue crack growth with a constant load control mode.
4. Review the parameters.
a) Click Yes to start with the parameters that are shown.
b) Click No to return to the Main menu, change parameters, and click Fatigue Crack Mark.
5. Click Run on the control panel to start the test activity. Optionally, if you want to review or change
parameters, click Return to Main Menu.
To suspend the activity after it starts, 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.
6. Review the process of the test activity by monitoring the runtime displays.
7. Typically, the activity will stop when a desired test parameter is achieved. In this case, review the activity
end result, and then click Close.
Constant Load Control Mode Parameters
Constant Load Control Mode Parameters
Description Parameter
Specify the ratio of the minimum-to-maximum
load applied to the specimen. The minimum FCG Load Ratio
load is determined by this value and the
maximum load is specified by you.
84 | MTS TestSuite
Run the CTOD Fracture Toughness Test