Apply Weights to Emphasize the Importance of Selected Test Data Sets

Specify the weight of the test data sets, such that test data sets with lower strain rates have a greater influence over the resulting material model than the test data sets with higher strain rates.

When you have multiple test data sets, you can specify their weights if you want some sets to have a greater influence on the calibrated response than others. You might want to emphasize data sets that have more data points, or you might want to deemphasize data sets with data that is noisy or untrustworthy.

In this example, you deemphasize the test data with the highest strain rate, because test data collected at high strain rates is typically less accurate than test data collected at low strain rates.

  1. From the Model and test data options, navigate to the test data set for strain rate=40.0.
  2. Enter 0.5 as the Weight.
    The plotted response curve changes slightly. The error indicator values improve for the first four test data sets, and the error indicator value worsens for the test data set at the highest strain rate.