Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.], 2015, Volume 19, Number 3, Pages 504–522
This article is cited in 2 scientific papers (total in 2 papers)
Mechanics of Solids
Residual stresses relaxation in surface-hardened half-space under creep conditions
V. P. Radchenko, T. I. Bochkova, V. V. Tsvetkov
Samara State Technical University, Samara, 443100, Russian Federation
We developed the method for solving the problem of residual stresses relaxation in surface-hardened layer of half-space under creep conditions. At the first stage we made the reconstruction of stress-strain state in half-space after plastic surface hardening procedure based on partial information about distribution for one residual stress tensor component experimentally detected. At the second stage using a numerical method we solve the problem of relaxation of self-balanced residual stresses under creep conditions.
To solve this problem we introduce the following Cartesian system: $x0y$ plane is aligned with hardened surface of half-space and $0z$ axis is directed to the depth of hardened layer.
We also introduce the hypotheses of plane sections parallel to $x0z$ and $y0z$ planes.
Detailed analysis of the problem has been done. Comparison of the calculated data with the corresponding test data was made for plane specimens (rectangular parallelepipeds) made of EP742 alloy during $T=650^\circ$ C after the ultrasonic hardening with four hardening modes. We use half-space to model these specimens because penetration's depth of residual stresses is less than specimen general size in two digit exponent. There is enough correspondence of experimental and calculated data. It is shown that there is a decay (in modulus) of pressing residual stresses under creep in 1.4–1.6 times.
half-space, plastic surface hardening, residual stresses, creep, stresses relaxation
PDF file (951 kB)
(published under the terms of the Creative Commons Attribution 4.0 International License)
MSC: 74A10, 74D10, 74S20
Original article submitted 20/IV/2015
revision submitted – 27/VI/2015
V. P. Radchenko, T. I. Bochkova, V. V. Tsvetkov, “Residual stresses relaxation in surface-hardened half-space under creep conditions”, Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.], 19:3 (2015), 504–522
Citation in format AMSBIB
\by V.~P.~Radchenko, T.~I.~Bochkova, V.~V.~Tsvetkov
\paper Residual stresses relaxation in surface-hardened half-space under creep conditions
\jour Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.]
Citing articles on Google Scholar:
Related articles on Google Scholar:
This publication is cited in the following articles:
V. E. Zoteev, A. A. Svistunova, “Zadacha opredeleniya parametrov approksimatsii ostatochnykh napryazhenii v poverkhnostno uprochnennom poluprostranstve”, Trudy decyatoi Vserossiiskoi nauchnoi konferentsii s mezhdunarodnym uchastiem: v 3-kh tomakh, Matematicheskoe modelirovanie i kraevye zadachi, 2016, 113–117
O. Sheremet, M. Ivchenkov, O. Ivchenkova, K. Sheremet, “Definition of energy efficient law of mechanical impact in vibratory stress relief of metal parts”, Eastern-European Journal of Enterprise Technologies, 2:1-98 (2019), 47–54
|Number of views:|