MTS Multipurpose Simulated - Manual (Page 36)

Stress Intensity K Parameters
Description Parameter
Specify the crack size value to use in the
stress intensity (K) calculation. Crack Size
Specify the load value to use in the stress
intensity (K) calculation. Load
5.2.3.0 Run the Test
5.2.3.1.0 Turn On Hydraulic Power
Use the control panel to apply hydraulic power.
1. If the Interlock indicator is on, click Reset to release system interlocks.
If the interlock remains on, use the message logs to identify and correct the cause of the interlock.
2. Click Low Power.
This action sets the hydraulic power unit to high pressure and the hydraulic service manifold to low pressure.
3. Click High Power.
This action sets the hydraulic service manifold to high pressure.
5.2.3.2.0 Perform Crack Size Check (CSC)
This activity applies a load to the specimen and verifies the crack size and the modulus for tests that use a
COD clip gage to measure the crack opening. For description of the CSC parameters and their values, see
Crack Size Check Parameters on page 36.
1. Click CSC on the Main menu.
2. Optionally, click Change Parameters. These parameters determine how to measure crack size, and how
to calculate crack size and modulus.
3. Click Measure Crack Size.
4. Click Run on the control panel to start the crack size check. Optionally, if you want to review or change
parameters, click Return to Main Menu.
5. When finished with this activity, click Close.
Crack Size Check Parameters
Description Parameter
Specify the crack size used to calculate the
elastic modulus. The default value is equal
to the specimen notch size. Entered Crack Size
36 MTS TestSuite
5.0 Running Simulation Tests