Defining deformation plasticity

Abaqus/Standard provides a deformation theory Ramberg-Osgood plasticity model for use in developing fully plastic solutions for fracture mechanics applications in ductile metals. The model is most commonly applied in static loading with small-displacement analysis for which the fully plastic solution must be developed in a part of the model.

Context:

See Deformation Plasticity, for more information.

  1. From the menu bar in the Edit Material dialog box, select MechanicalDeformation Plasticity.

    (For information on displaying the Edit Material dialog box, see Creating or editing a material.)

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

    A column labeled Temp appears in the Data table.

  3. Enter the following data in the Data table:

    Young's Modulus

    Young's modulus, E, defined as the slope of the stress-strain curve at zero stress.

    Poisson's Ratio

    Poisson's ratio, ν.

    Yield Stress

    Yield stress, σ0.

    Exponent

    Hardening exponent, n, for the plastic (nonlinear term).

    Yield Offset

    Yield offset, α.

    Temp

    Temperature.

    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.

  4. Click OK to create the material and to close the Edit Material dialog box. Alternatively, you can select another material behavior to define from the menus in the Edit Material dialog box (see Browsing and modifying material behaviors, for more information).