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Steady state creep in a rotating composite disc of variable thickness

  • Dharmpal Deepak , Vinay K. Gupta and Ashok K. Dham
Published/Copyright: May 31, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 101 Issue 6

Abstract

The steady state creep in a rotating disc having variable thickness and made of isotropic aluminium–silicon carbide particulate composite has been investigated. Using threshold stress based creep law, the general expressions for stresses and strain rates in the discs have been obtained. The expressions are used to calculate the distributions of stresses and strain rates in different discs viz (i) disc having constant thickness (ii) disc having linearly varying thickness and (iii) disc having hyperbolically varying thickness. The volume of different discs is kept the same. The study revealed that the stresses and strain rates in the disc could be reduced to a significant extent by varying the disc profile. The linearly varying disc exhibits the lowest values of stresses and strain rates compared to those observed in hyperbolic or uniform thickness disc.

Keywords: Modelling; Creep; Aluminium matrix composite; Rotating disc; Variable thickness
* Correspondence address, Dr. Vinay Kumar Gupta, Reader, Department of Mechanical Engineering, University College of Engineering, Punjabi University, Patiala-147002, India, Tel.: +91 175 228 0166, Fax: +91 175 304 6333, E-mail:

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Received: 2009-2-28
Accepted: 2009-11-13
Published Online: 2013-05-31
Published in Print: 2010-06-01

© 2010, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110335
Keywords for this article
Modelling; Creep; Aluminium matrix composite; Rotating disc; Variable thickness

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. IJMR's most downloaded papers from 2008 to the present: a review
  5. Basic
  6. Effect of temperature and strain rate on strain hardening and deformation mechanisms of high manganese austenitic steels
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  8. Microstructure of super-austenitic steels after long-term annealing
  9. Investigation of tensile–compressive yield asymmetry and the role of deformation twin in extruded pure magnesium
  10. Neutron diffraction study on liquid Al–Ni alloys
  11. Investigation of the atomic structure of molten As–Se alloys using X-ray diffraction
  12. A theoretical approach to the elastic behaviour of compact and hollow spherical particles reinforced metal-matrix composites
  13. Applied
  14. Adsorption of nucleotides on the rutile (110) surface
  15. Effect of cyclic heat treatment on the microstructures and mechanical properties of Ti–Si alloys
  16. Deleterious phases resulting from the induction bending of thick-walled super-duplex pipework
  17. Steady state creep in a rotating composite disc of variable thickness
  18. Influence of data conversion methods from torsion tests on the Garofalo equation parameters for a high nitrogen steel
  19. High-alloy ferritic cast irons with different graphite microstructures for exhaust manifolds and turbocharger housings
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