Select the Parameters to Calibrate

Assess the elasticity and plasticity parameters of both the test data and the response curve, and select the ones that you want to include in the calibration. Excluding the response curve parameters that are similar to the test data can shorten the calibration run time when you run the calibration.

  1. In the Plot panel, compare the elastic and plastic stresses for the test data and the response curve.

    The elastic regions of the two curves are fairly similar, so you can exclude Young's modulus from the calibration. However, the curves diverge in the plastic regions, so keep the plastic parameters in the calibration.

  2. From the Material model section of the Calibration Setup panel, do the following:
    1. From the Elastic, Isotropic parameters, clear the row for the E parameter to exclude it from the calibration.
    2. From the Plastic, Isotropic, Johnson-Cook parameters, select only the rows for the parameters A, B, and n. All three are material parameters that factor into the algorithm for the Johnson-Cook plasticity model.