Kinetics of Crack Development in Surface Toughened Parts
Beginning. Ending at No. 1(37) 2023
B.V. Boytsov, Ph.D., Professor, Moscow Aviation Institute (NRU); Moscow
G.N. Kravchenko, Candidate of Sciences in Engineering, Associate Professor, Moscow Aviation Institute (NRU); Moscow
e-mail: gnkrav@mail.ru
Y.V. Petukhov, Candidate of Sciences in Engineering, Associate Professor, Moscow Aviation Institute (NRU); Moscow
K.G. Kravchenko, Lead Engineer, Moscow Aviation Institute (NRU); Moscow
The analytical-experimental assessment of the crack development kinetics under variable loading in smooth zones of power parts of machines toughened by various methods of surface plastic deformation is provided and justified. These methods can be used in engineering calculations in predicting the effectiveness of design and technology decisions to provide critical quality indicators of components and parts that determine their survivability and reliability in operation, as well as in the appropriation and design of reinforcing technologies.
Keywords: performance quality, crack resistance, fatigue strength, surface hardening, high strength steel, forecasting.
References:
1. Kravchenko G.N., Kravchenko K.G. Selection of technological parameters of shot-impact hardening of power parts of aircraft structures. Moscow. Polet. 2018. No. 4. pp. 37-44.
2. Boytsov B.V., Kravchenko G.N. Study of the influence of hardening by surface plastic deformation on the development of fatigue cracks in steel 30HSGN2A. Strength problems. 1983. No. 7. pp. 24-27.
3. Boytsov B.V., Kravchenko G.N. Some patterns of fatigue fractures of samples hardened by surface plastic deformation. Mechanical Engineering Bulletin. 1983. No. 4. pp. 10-13.
4. Boytsov B.V., Kravchenko G.N., Petuhov J.V. Effect of residual stress and overloading on initiation and fatigue crack propagation mechanism. Mechanical behavior of material. V. ISM 5. Pergamon press. Oxford. V. 1. 1986. pp. 749-756.
5. Cherepanov G.P. Mechanics of fragile destruction. Moscow. Nauka. 1974. 640 p.
DOI: 10.34214/2312-5209-2022-36-4-51-56
