In the "Plastic capacity design | | Simplex method", RSECTION not only varies the normal stresses, but also the shear stresses over the cross-section area. This extended form of analysis allows you to use redistribution reserves, especially for the cross-sections subjected to shear loading, thus loading the cross-sections even more efficiently.
Go to Explanatory VideoPlastic Resistance with Variation of Shear Stresses
Links
;