Fig. 4

a Comparison of MD and STA stress-strain curves for bcc Ta strained along the [001] axis in compression and in tension at a strain rate of \(\dot {\varepsilon }=2\times 10^{8}\,\)/s. The STA stress-strain curves are reconstructed from slip facet data computed using the STA algorithm after which a 3% systematic correction is applied. b Evolution of dislocation densities ρ extracted from DXA snapshots of the same two simulations