Kononuchenko O. High-cycle fatigue crack propagation in metallic materials under thermal-mechanical loading

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0400U003165

Thesis Registration Form

0400U003165.pdf

Applicant for

Specialization

  • 01.02.04 - Механіка деформівного твердого тіла

31-10-2030

Specialized Academic Board

Д 26.241.01

G.S. Pisarenko Institute for Problems of Strength of the National Academy of Sciences of Ukraine

Essay

A calculating - experimental method has been proposed and applied to estimate parameters of cyclic fracture toughness of heat resistant alloys. A criterion taking into account complexity of influence of thermal mechanical loading on the fatigue crack growth has been proposed. Using the proposed criterion, good correspondence of the predicted and experimental crack growth rates has been obtained. The possibility to estimate fatigue limit based on threshold value of stress intensity factor has been shown.

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