MTS Multipurpose Simulated - Manual (Page 54)

5.3.5.2.0 Fatigue Crack Growth Analysis View
The template is preconfigured with a data view that conforms to the analysis portion of the ASTM standard.
The data view contains the following tables and charts.
Analysis Inputs Table
The Analysis Inputs table contains the parameters used for the analysis. In the Display Name column, the
FCG da/dN Curve Fit row indicates the Secant or Polynomial fit calculation method. You can make the
corrections indicated in the message log by adding or changing the input values. If the variable is an array,
the entry is added to the expansion table. Click the + at the left of the row to see a table of entries. Click
another row to activate the Refresh All Analysis Views button in the toolbar at the top of the window. When
you click that button, the application recalculates the analysis. You can change the calculation method by
changing the Value column entry of the FCG da/dN Curve Fit row. After you refresh the values, the ones you
modified have check marks in the Modified column. The original test data is not lost and does not change.
You can add and change values by typing in the table cell. Click another row to activate the Refresh All
Analysis Views button and click the button. The Modified column becomes filled with a check mark in rows
where you specify the value.
Variable Summary Table
The Variable Summary table provides the data output of the test. The table contains the following columns
by default:
• Category
• Display Name
• Value
• Unit
• Modified
• Original Value
• Array
• Number of Stored Points
• Calculate
• Calculation
Crack Length, Min/Max K, Load by Cycles Table
The Crack Length, Min/Max K, Load by Cycles table provides values for the cycles in the FCG Cycle Array
column. Additional default columns are:
• FCG Crack Size Array (not used for FCG DCPD analysis)
• FCG K Maximum (not used for FCG DCPD analysis)
• FCG K Minimum (not used for FCG DCPD analysis)
• FCG P Max Array (not used for FCG DCPD analysis)
• FCG P Min Array (not used for FCG DCPD analysis)
• FCG COD Voltage Active Array
• FCG Crack Voltage Reference Array
54 MTS TestSuite
5.0 Running Simulation Tests