INCREASING THE ACCURACY OF PREDICTION OF METAL CYCLIC STRENGTH
The paper uses a thermo graphic approach to evaluate the process of accumulation of damage in metals during their cyclic deformation. The process of macro elastic deformation is considered together with the thermodynamics of micro plastic deformations. Formulas for the practical calculation of the flux of specific entropy produced during cyclic deformation in the source of accumulation and development of damage are obtained. This entropy flow is decomposed into functional parts, which are convenient to use for predicting cyclic durability. Results of practical use of the conducted researches are presented.