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Fig. 1 | Materials Theory

Fig. 1

From: Sweep-tracing algorithm: in silico slip crystallography and tension-compression asymmetry in BCC metals

Fig. 1

a Schematic of a unit slip facet (ΔAi,bi) (shaded quadrilateral) extracted with the STA algorithm by reconnecting networks \(\mathcal {N}_{t}\) (green nodes and segments) and \(\mathcal {N}_{t+\Delta t}\) (blue nodes and segments) through approximant \(\mathcal {\tilde {N}}_{t+\Delta t}\) (red nodes and dashed red segments). The magnitude ΔAi=∥ΔAi∥ of the normal vector is equal to the area swept by the segment over the same time interval Δt. (b–d) Dislocation motion in the form of slip facets extracted using the STA algorithm from an MD simulation of metal plasticity in bcc Ta. b The green lines show dislocation positions at time t=0. The blue surfaces are composed of slip facets reconnecting positions of the same dislocations at c t=5ps and d t=10ps

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