The Prandt-Reuss flow law on the theory of ideal plastic bodies is generally given with the use of the stress deviator. In the theory of elasticity we are accustomed in working directly with stresses. For this reason, therefore, stresses are introduced in the Prandtl-Reuss equation. Accordingly, the stress speeds are expressed by the stress and distortion speeds. Two examples are treated in which the closed integration of the equations was successful. Author
Edited trans. of Technische Universitaet, Dresden. Wissenschaftliche Zeitschrift (East Germany) v15 n2 p227-230 1966, by E. Novak.