Refinement of Deformation Approach-Based Model of Materials' Fatigue Damage Kinetics.

The experimental data on inelastic cyclic deformation of various metallic materials are analyzed with the aim to determine the mechanisms governing their variation during cyclic loading. Groups of materials with similar kinetics of inelastic deformation are selected, and the analytical relations for their description are proposed. The variation of inelastic strains under conditions of the material fatigue is closely associated with their hardening-softening, which description requires the calculated model of cyclic yield strength variation. The proposed model for the selected groups of materials makes it possible to describe their inelastic deformation and damage behavior under fatigue conditions. [ABSTRACT FROM AUTHOR]