Select the algorithm for your material calibration.
Material Calibration offers three classes of optimization algorithms: gradient based, derivative free, and
heuristic (or evolutionary) algorithms. Each class is suited to the calibration of a
particular type of test data, and derivative-free algorithms are a suitable choice in
this example because they are best suited to viscoelastic problems or problems that are
rate-dependent in general. Of the available derivative-free algorithms, select the
Nelder-Mead algorithm because it is the most efficient and accurate algorithm for the
test data sets.