This paper considers the stability of an explicit leapfrog time marching scheme for the
simulation of acoustic wave propagation in heterogeneous media with high‐order spectral …

Finding the critical time step for conditionally stable time integration methods has been a
decades‐long problem. The apparently obvious option of directly computing it from a …

Mass scaling is widely used in finite element models of structural dynamics for increasing
the critical time step of explicit time integration methods. While the field has been flourishing …

Finite elements with Allman's rotations provide good computational efficiency for explicit
codes exhibiting less locking than linear elements and lower computational cost than …

In this contribution, a novel local, node-based time step estimate for reciprocal mass
matrices with improved sharpness is proposed. Reciprocal mass matrices are sparse …