Defining a solution-dependent amplitude curve

Use the solution-dependent definition method to calculate amplitude values based on a solution-dependent variable. For more information, see Defining a solution-dependent amplitude for superplastic forming analysis.

  1. Display the Edit Amplitude dialog box as described in Selecting an amplitude type to define.

  2. Click the arrow to the right of the Time span field, and specify how you want to define the amplitude as a function of time:

    • Select Step time for time that is measured from the beginning of each step.

    • Select Total time for total time accumulated over all non-perturbation analysis steps.

  3. In the Initial amplitude field, enter the initial amplitude value. The amplitude starts with the initial value and is then modified based on the progress of the solution.

  4. In the Min amplitude field, enter the minimum amplitude value.

  5. In the Max amplitude field, enter the maximum amplitude value. The maximum value is typically the controlling mechanism used to end the analysis.

  6. Click OK to save your amplitude definition and to close the Edit Amplitude dialog box.