THERMAL SCIENCE

International Scientific Journal

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Sanjeev Sharma

,

Sanehlata Yadav

NUMERICAL SOLUTION OF THERMAL ELASTIC-PLASTIC FUNCTIONALLY GRADED THIN ROTATING DISK WITH EXPONENTIALLY VARIABLE THICKNESS AND VARIABLE DENSITY

ABSTRACT
Thermal elastic-plastic stresses and strains have been obtained for rotating annular disk by using finite difference method with Von-Mises’ yield criterion and non-linear strain hardening measure. The compressibility of the disk is assumed to be varying in the radial direction. From the numerical results, we can conclude that thermal rotating disk made of functionally graded material whose thickness decreases exponentially and density increases exponentially with non-linear strain hardening measure (m = 0.2) is on the safe side of the design as compared to disk made of homogenous material. This is because of the reason that circumferential stress is less for functionally graded disk as compared to homogenous disk. Also, plastic strains are high for functionally graded disk as compared to homogenous disk. It means that disk made of functionally graded material reduces the possibility of fracture at the bore as compared to the disk made of homogeneous material which leads to the idea of stress saving.
KEYWORDS
Disk, rotation, thin, thickness, density, thermal, non-homogenous
PAPER SUBMITTED: 2013-10-01
PAPER REVISED: 2018-04-09
PAPER ACCEPTED: 2018-04-29
PUBLISHED ONLINE: 2018-05-12
DOI REFERENCE: https://doi.org/10.2298/TSCI131001136S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 1, PAGES [125 - 136]
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Numerical solution of thermal elastic-plastic functionally graded thin rotating disk with exponentially variable thickness and variable density

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence