Boris Andreevich Stratula (Institute for Computer Aided Design of the Russian Academy of Sciences) :


539.3 Mathematical modeling of fatigue failure during high-frequency bending vibrations of titanium alloy specimens

Stratula B. A. (Institute for Computer Aided Design of the Russian Academy of Sciences)

doi: 10.18698/2309-3684-2021-4-4557

A unified numerical method for different fatigue fracture modes from low-cycle to very-high-cycle fatigue is described on the basis of a multi-mode two-criterion model of cyclic damage. This method allows for a through calculation of the evolution of crack-like fatigue fracture zones in a material, as well as an assessment of the durability of specimens from crack nucleation to macrofracture. Fatigue fracture calculations of titanium alloy specimens under prolonged cyclic loading under three-point bending scheme with development of "quasi-cracks" in modes from multi-cycle to super-multi-cycle fatigue have been carried out. Numerical and experimental results are compared to each other.

Стратула Б.А. Математическое моделирование усталостного разрушения при высокочастотных изгибных колебаниях образцов из титановых сплавов. Математическое моделирование и численные методы, 2021, № 4, с. 45–57.