Specifying softening regularization for a clay plasticity model

The Suboption Editor allows you to specify a regularization scheme to mitigate potential mesh dependence of results in the Cam-clay plasticity model in the event that it exhibits strain localization with increasing plastic deformation For more information, see Softening regularization.

  1. Create a material model as described in Specifying clay plasticity behavior.”

  2. From the Suboptions menu in the Edit Material dialog box, select Softening Regularization.

    A Suboption Editor appears.

  3. Toggle on Use temperature-dependent data to define data that depend on temperature.

    A column labeled Temp appears in the Data table.

  4. Click the arrows to the right of the Number of field variables field to increase or decrease the number of field variables on which the data depend.

  5. In the Data table, enter the following data:

    Crack Band Length

    Crack band length, lc(m). This value must be greater than zero.

    Exponent

    Exponent, nr. This value must be greater than zero.

    Bound

    Bound on the magnitude of regularization, fm⁢a⁢x. This value must be greater than zero.

    Temp

    Temperature.

    Field n

    Predefined field variables.

    You may need to expand the dialog box to see all the columns in the Data table. For detailed information on how to enter data, see Entering tabular data.

  6. Click OK to return to the Edit Material dialog box.