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Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences, 2022, Volume 26, Number 1, Pages 119–139
DOI: https://doi.org/10.14498/vsgtu1884
(Mi vsgtu1884)
 

This article is cited in 1 scientific paper (total in 1 paper)

Mechanics of Solids

Relaxation of residual stresses in a surface-hardened rotating cylinder under creep conditions

V. P. Radchenkoa, A. E. Libermana, O. L. Blokhinb

a Samara State Technical University, Samara, 443100, Russian Federation
b Zenia-AI, Minsk, 220100, Belarus (published under the terms of the Creative Commons Attribution 4.0 International License)
References:
Abstract: A technique for calculating the relaxation of residual stresses in a cantilevered rotating cylinder after the procedure of surface plastic deformation under creep conditions has been developed, taking into account the effect of a stepwise change in the parameters of temperature-force loading (unloading). The problem simulates the stress-strain state of a surface-hardened cylinder (rod), the end section of which is rigidly fixed on a disk rotating at a constant angular velocity.
The technique includes a method for reconstructing the fields of residual stresses and plastic deformations and a method for calculating the relaxation of residual stresses during creep of a rotating cylindrical rod. Since the tensile stresses caused by rotation along the length of the rod do not change in time, the problem of relaxation of residual stresses for a stretched rod at constant stress is solved in each cross section.
A detailed numerical study of the effect of the number of revolutions on the rate of relaxation of residual stresses was performed for a shot-hardened cylindrical sample with a radius of 3.76 mm made of EI698 alloy at a temperature of 700 $^\circ$C.
Analysis of the calculation results allowed to establish a non-trivial effect, which consists in the fact that the relaxation of residual stresses in sections subjected to axial tensile stresses due to rotation occurs less intensively than in the “tail” section, where the axial load from rotation is zero. The results obtained in this work can be useful in evaluating the effectiveness of surface-plastic hardening of parts under high-temperature creep conditions.
Keywords: residual stresses, surface plastic hardening, rotating cylinder, creep, relaxation.
Funding agency Grant number
Russian Science Foundation 19-19-00062
This study was supported by the Russian Science Foundation (RSF 19–19–00062, Samara State Technical University).
Received: September 14, 2021
Revised: December 28, 2021
Accepted: January 24, 2022
First online: March 21, 2022
Bibliographic databases:
Document Type: Article
UDC: 539.376:621.787
MSC: 74A10, 74D10
Language: Russian
Citation: V. P. Radchenko, A. E. Liberman, O. L. Blokhin, “Relaxation of residual stresses in a surface-hardened rotating cylinder under creep conditions”, Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.], 26:1 (2022), 119–139
Citation in format AMSBIB
\Bibitem{RadLibBlo22}
\by V.~P.~Radchenko, A.~E.~Liberman, O.~L.~Blokhin
\paper Relaxation of residual stresses in a surface-hardened rotating cylinder under creep conditions
\jour Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.]
\yr 2022
\vol 26
\issue 1
\pages 119--139
\mathnet{http://mi.mathnet.ru/vsgtu1884}
\crossref{https://doi.org/10.14498/vsgtu1884}
\elib{https://elibrary.ru/item.asp?id=48309001}
\edn{https://elibrary.ru/GFBZBC}
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  • https://www.mathnet.ru/eng/vsgtu/v226/i1/p119
  • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Вестник Самарского государственного технического университета. Серия: Физико-математические науки
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    Full-text PDF :177
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