Abstract
The present study is devoted to the problem of the thermal stresses theory for a hollow thermoelastic-plastic ball under unsteady heating. Throughout the paper the conventional elastic-plastic Prandt-Reuss model generalized on the thermal effects is used with the Tresca yield criterion linearly depending on temperature. A numerical-analytical algorithm for calculating the elastic-plastic boundaries positions and irreversible deformations is proposed. The strain-stress states during the plastic flow, repeated plastic flow and unloading are analyzed. The strain-stress state parameters like residual stresses and displacements are computed and analyzed.
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