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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2021, Volume 62, Issue 1, Pages 134–146
DOI: https://doi.org/10.15372/PMTF20210115
(Mi pmtf216)
 

GDQ analysis of unsteady creep in a rotating temperature-dependent FGM disk

H. Zharfi

Esfarayen University of Technology, Esfarayen, I.R. Iran
Abstract: Primary (unsteady) and secondary (steady) regimes of creep deformation of a rotating disk made of an Al–SiC functionally graded material (FGM) is investigated using the generalized differential quadrature (GDQ) method. The disk is subjected to three different types of the temperature gradient in the radial direction, and a temperature dependence of the material properties is assumed. The primary and secondary creep is described by Norton's law in which the creep parameters depend on the volume fraction distribution of SiC reinforcement particles, temperature, and particle size. It is shown that the creep rates are strongly dependent on the temperature gradient type, prevailing temperature, and content of reinforcing particles at any point of the disk.
Keywords: primary and secondary creep, time, temperature gradient, rotating disk, FGM, GDQ method.
Received: 26.12.2019
Revised: 28.05.2020
Accepted: 29.06.2020
English version:
Journal of Applied Mechanics and Technical Physics, 2021, Volume 62, Issue 1, Pages 118–128
DOI: https://doi.org/10.1134/S0021894421010156
Bibliographic databases:
Document Type: Article
UDC: 539.5
Language: Russian
Citation: H. Zharfi, “GDQ analysis of unsteady creep in a rotating temperature-dependent FGM disk”, Prikl. Mekh. Tekh. Fiz., 62:1 (2021), 134–146; J. Appl. Mech. Tech. Phys., 62:1 (2021), 118–128
Citation in format AMSBIB
\Bibitem{Zha21}
\by H.~Zharfi
\paper GDQ analysis of unsteady creep in a rotating temperature-dependent FGM disk
\jour Prikl. Mekh. Tekh. Fiz.
\yr 2021
\vol 62
\issue 1
\pages 134--146
\mathnet{http://mi.mathnet.ru/pmtf216}
\crossref{https://doi.org/10.15372/PMTF20210115}
\elib{https://elibrary.ru/item.asp?id=44746892}
\transl
\jour J. Appl. Mech. Tech. Phys.
\yr 2021
\vol 62
\issue 1
\pages 118--128
\crossref{https://doi.org/10.1134/S0021894421010156}
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