Plane stress-strain state of an annular plate on creeping under high deforming conditions

The plane stress-strain state of a thin annular plate of a constant thickness is analysed under the condition of large strains. The equation of a non-linear viscous body is taken as a state equation. The comparison is performed of the solution derived by using the creep potential - Mises criterion, and that derived on the basis of Tresca-Saint-Venant criterion.