Specifying behavior settings for tabular data

Display the Edit Table Options dialog box.

• For elasticity, damping, user-defined friction, plasticity, or damage behavior using tabular data, click Table Options on the Behavior Options tabbed page of the connector section editor. For more information, see the following sections:

  • Defining elasticity

  • Defining damping

  • Specifying predefined friction parameters or contact forces

  • Defining plasticity

  • Defining damage

  • Defining damage evolution

• For connector derived component terms, click Table Options from the Edit Derived Component Term dialog box. For more information, see Specifying connector derived components.

In the Regularization portion of the dialog box, specify the settings for the regularization of data in an Abaqus/Explicit analysis.

1. Specify which regularization behavior settings to use for this behavior option.

   • Toggle on Use behavior settings to use the regularization behavior settings that apply to all of the behavior options in the connector section.

   • Toggle off Use behavior settings to use the regularization behavior settings that you specify in this dialog box.

2. By default, Abaqus/Explicit regularizes the data into tables that are defined in terms of even intervals of the independent variables.

   • Toggle on Regularize data to regularize tabular data.

   • Toggle off Regularize data to turn off regularization of the tabular data and use the data that you define directly.

3. If you want to regularize tabular data, specify the error tolerance.

   • Choose Use default to use the default value of 0.03.

   • Choose Specify, and enter a value for the error tolerance.

The Rate Options portion of the dialog box is available if you are defining plasticity behavior that includes isotropic hardening or damage initiation behavior. You can specify settings for the evaluation of rate-dependent data in an Abaqus/Explicit analysis. These settings apply only for plasticity behavior that includes isotropic hardening using a Tabular definition (the force-constitutive motion data are specified directly in tabular form) or damage behavior with plastic motion–based initiation criteria.

1. Specify the value of the rate filter factor, $\omega$.

   • Choose Use default to use the default value of 0.9.

   • Choose Specify, and enter a value ($0<\omega \le 1$). A value of $\omega =1$ provides no filtering and should be used with caution.

2. Specify the interpolation method.

   • Choose Linear to use linear intervals for the equivalent relative plastic motion rate while interpolating rate-dependent damage initiation data.

   • Choose Logarithmic to use logarithmic intervals for the equivalent relative plastic motion rate while interpolating rate-dependent damage initiation data.

In the Extrapolation portion of the dialog box, specify the settings for the extrapolation of data.

1. Specify which extrapolation behavior settings to use for this behavior option.

   • Toggle on Use behavior settings to use the extrapolation behavior settings that apply to all of the behavior options in the connector section.

   • Toggle off Use behavior settings to use the extrapolation behavior settings that you specify in this dialog box.

2. Specify the method for the extrapolation of tabular data. The data points that you enter make up a nonlinear curve in the constitutive space. By default, Abaqus extrapolates the dependent variables as constant values that correspond to the end points of the curve outside the specified range of the independent variables.

   • Choose Constant to use constant extrapolation of the dependent variables outside the specified range of the independent variables.

   • Choose Linear to use linear extrapolation of the dependent variables outside the specified range of the independent variables.

Click OK to save your behavior settings and to return to the connector section editor.