Salvus can efficiently model ultrasound propagation in materials relevant for structural health monitoring. With the included Python-based toolbox for digitial twin creation, this opens up the application wavefield-based optimal experimental design and full-waveform inversion to applications in nondestructive evaluation. Below, we see a fully 3-D elastic ultrasound wavefield propagating through reinforced concrete. Simulations like this one can be run in a matter of seconds on a single consumer-grade workstation.