抄録
Combining the Sachs deformation model with the dislocation theory, we can predict the stress-strain curve for both face centered cubic (FCC) and body centered cubic (BCC) single crystals generally. Residual dislocation densities are estimated from total amount of microscopic slip, considering cross-slipped dislocations and sessile dislocations. Stresses are calculated from estimated dislocation densities using the Bailey-Hirsch relationship. Finally, we showed a calculation example of the Sachs deformation model to explain low-angle boundary formation.