The athermal flow-stress contribution which arose from the reaction of a glide dislocation with a forest was considered. The strength coefficient was calculated for the body-centered cubic lattice by using the virtual displacement of triple nodes. The values for glide dislocations of 0, 30, 60 and 90º type, in the isotropic approximation, were 0.18, 0.21, 0.19 and 0.22, respectively. Good agreement was found when differences in the cut-off radii of the linear elastic solution were accounted for.

The Flow Stress Contribution of the Dislocation 'Forest' in BCC Lattices. W.Püschl: Philosophical Magazine Letters, 2000, 80[4], 199-203