Probabilistic Material Properties

To define the variability of Abutment (Shear) Strength properties:

1. Select Material Properties from the Statistics menu.
2. To set an input parameter as a random variable in the Material Properties dialog:
   1. Select the desired Material Property from the list.
   2. Select Add button to populate the next available statistical variable.
      
   3. Under the Property column, select the desired variable from the dropdown. The Mean value set in the Input Data dialog is automatically populated.
   4. Under the Distribution column, select the desired statistical distribution from the dropdown. The default Distribution = Normal.
   5. Edit or populate the Mean, Std. Dev., Rel. Min, and Rel. Max columns.
   6. Select OK to save the statistics.

Alternatively, to define random variables:

1. Select Input Data from the toolbar or Analysis menu.
2. Select the statistics button beside the edit box.
3. Choose a distribution, and enter the standard deviation, relative minimum and relative maximum (this is handy for quickly defining or editing statistics for individual variables).

See the Shear Strength topic for more information about the different shear strength parameters.