Design Decisions for Dynamics-Aware Coarsening

Accurate physical modeling of transient dynamics with contact is validated by experiment and generally requires simulation at close to convergent spatial and temporal grid sizes. This makes even a single forward dynamic simulation run in 3D prohibitively expensive. On the other end of the spectrum physically based animation methods seek efficiency by pushing simulations towards maximally stable time-step sizes and coarsest possible spatial meshes to obtain visually appealing but generally highly inaccurate dynamics. Here we detail our experiments and investigations towards designing predictive and efficient simulation of high-speed dynamics under frictional contact, impact, loading and free-flight suitable for fabrication design.