| Issue |
E3S Web of Conf.
Volume 531, 2024
Ural Environmental Science Forum “Sustainable Development of Industrial Region” (UESF-2024)
|
|
|---|---|---|
| Article Number | 01008 | |
| Number of page(s) | 12 | |
| Section | Industrial Decarbonization and Green Chemistry | |
| DOI | https://doi.org/10.1051/e3sconf/202453101008 | |
| Published online | 03 June 2024 | |
Computational and experimental assessment of the fatigue strength dissipation characteristics of power lugs
1 Moscow Aviation Institute (National Research University), Volokolamskoe shosse, 4, 125993, Moscow, Russia
2 Voronezh State Technical University, 20th Anniversary of October, 84, 394006, Voronezh, Russia
3 Moscow State University of Civil Engineering, 26, Yaroslavskoe shosse, 129337, Moscow, Russia
* Corresponding author: gnkrav@mail.ru
Methods for experimental and computational assessment of the dissipation indicators of the endurance limit and cyclic durability of power lugs of machines and mechanisms are presented. Based on a generalization of the results of fatigue tests, the dependences of the standard deviation of the logarithm of the number of cycles before failure of lugs made of high-strength steels on the maximum amplitudes of cyclic stresses were constructed. Formulas are obtained for calculating the coefficient of variation of the theoretical stress concentration coefficient of the lugs from production deviations of their dimensions in plan and from the dispersion of the gap between the bolt and the hole. Based on these formulas, the values of the coefficient of variation of the theoretical stress concentration coefficient for typical lugs are obtained and given.
© The Authors, published by EDP Sciences, 2024
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