Modeling of Deformation and Failure of Heat-Resistant Alloys under Cyclic Thermal-Mechanical Loading

The results of numerically modeling fatigue damage accumulation in heat-resistant alloys (Nimonic 80A, Haynes 188) under combined thermal mechanical loading are presented. Special attention is paid to the issues of modeling the processes of cyclic thermal plastic deformation and fatigue damage accumulation for complex deformation processes accompanied by the rotation of the main sites of stress and strain tensors.