Initialize the Material Model Parameters

Adjust the initial values for the material parameters to simplify the calibration and improve the calibrated response. Optimization problems can be complex with multiple different objectives. Because of this complexity, a calibrated response might iterate to a local minima rather than the optimal response. Initializing the parameters properly can help you avoid local minima.

  1. From the Hyperelastic options in the Calibration Setup panel, enter the following values for the Yeoh hyperelasticity parameters:

    Parameter Value
    C10 5Mpa
    C20 -0.5Mpa
    C30 0.05Mpa

    When you change a parameter, the app updates its response curve in the plot, and its error measurement for test data sets in the Model and Test data section of the Calibration Setup panel.
  2. From the Viscoelastic options in the Calibration Setup panel, enter the following values for the five Yeoh viscoelasticity material parameters:

    Parameter Value
    g1 0.3
    g2 0.2
    g3 0.1
    g4 0.05
    g5 0.05