Hipoteza dekoiiezji mikroobjętości poddanej działaniu zmiennych naprężeń

The model assumed of the medium with microstructure is similar to that introduced in the papers by J. Murzewski [18] and S. D. Volkov [26] and consists in dividing the body into macro-elements, and subdividing them into micro-elements. The hypothesis concerning the increase of dislocation density in the micro-volume depending on the variable stress, the quantity of cycles and the initial dislocation density has been formulated. The condition of decoliesion of metal micro-volume under variable stress has been defined.