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RESISTANCE TO FATIGUE OF MATERIALS DUE TO THE CHAOTIC STATE OF PROCESSES OF DAMAGES AT THE MESOSCALE LEVEL
Stolyarchuk Aleksander Stanislavovich1, Romanenko Mihail Dmitrievich2, Korobov Aleksander Viktorovich3, Serov Igor Mihailovich4, Zubkov Andrey Viktorovich5, Parshikov Sergey Vladimirovich6
1Volgograd State Technical University, Candidate of Technical Science, associate professor
2Volgograd State Technical University, student
3LLC «CDKNHO», engineer
4LLC «CDKNHO», first deputy director general, expert
5LLC «CDKNHO», head of laboratory NDT, expert
6LLC «CDKNHO», lead engineer, expert
1Volgograd State Technical University, Candidate of Technical Science, associate professor
2Volgograd State Technical University, student
3LLC «CDKNHO», engineer
4LLC «CDKNHO», first deputy director general, expert
5LLC «CDKNHO», head of laboratory NDT, expert
6LLC «CDKNHO», lead engineer, expert
Abstract
The mechanical characteristics of polycrystalline materials at fatigue are investigated. Processes of damages at the mesostructural level based on the speed of accumulation of local deformations are studied. For an assessment of randomness (uncertainty) of processes of damages the concept of «entropy of speeds of mesodamages» is entered. This entropy was accepted as a characteristic of global damage and was calculated according to the Shannons’s formula. The randomness has changed through the use of various technologies of hardening. The correlation between resistance to fatigue and the entered characteristic of damage of material is detected.
Keywords: cyclic damages, material hardening, resistance to fatigue, Shannon entropy
Category: 05.00.00 Technical sciences
Article reference:
Resistance to fatigue of materials due to the chaotic state of processes of damages at the mesoscale level // Modern scientific researches and innovations. 2015. № 12 [Electronic journal]. URL: https://web.snauka.ru/en/issues/2015/12/61889
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