Luis F. Gutiérrez, Iker Aguinaga, Matthias Harders and Félix Ramos
The performance of a finite element-based simulation using explicit time integration schemes can be optimized by improving the initial tetrahedral meshes. We provide quality metrics related to the critical simulation time step.
We propose a new smoothing approach that uses spring systems to displace a node with respect to the positions that maximize the time step of the elements adjacent to that node.
The algorithm is combined with topological transformations. The simulation performance improves on average by 30%.