Displacement based Simulation and Material Calibration based on Digital Image Correlation Part II - Application

Abstract An alternative approach to calibrate material models is proposed. The entire displacement field of a specimen measured with DIC system was converted into boundary conditions by the Envyo® mapping software. These were imposed on all nodes in corresponding LS-DYNA® simulation model. In this way digital twin geometry and experimental kinematics obtained. Considering local stress equilibrium over global force integrated many hypothetical cross sections, LS-OPT® used iteratively determine isotropic model parameters tested material. A new tensile introduced get most out single test. findings suggest that, at present, convergence iterative parameter optimization cannot be attained without prior filtering smoothing input data time space, despite utilization chosen