Modelling and Analysis of Creep in a Variable Thickness Rotating FGM Disc Using Tresca and von Mises Criteria

Research Paper
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Abstract

A mathematical model is developed to analyse creep in a variable thickness functionally graded rotating disc yielding according to Tresca criterion. The results obtained are compared with those estimated using von Mises criterion. The tangential and radial stresses, using Tresca criterion, are observed to be slightly higher, except those noticed near the inner and outer disc radii. The Tresca criterion yields lower values of effective stress as compared to Mises criterion. However, the Tresca criterion estimates higher values of strain rates in the disc as compared to Mises criterion, with maximum variation noticed at the inner radius. Thus, the FGM disc designed using Tresca yield criterion is more conservative than that designed according to von Mises criterion.

Keywords

Creep Rotating disc Tresca criterion von Mises criterion FGM 

Notes

Acknowledgements

The authors would like to express their sincere thanks to all the reviewers for their meticulous observations and comments, which helped in raising the standard of this research paper.

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Copyright information

© Shiraz University 2016

Authors and Affiliations

  1. 1.Mechanical Engineering DepartmentThapar UniversityPatialaIndia
  2. 2.Mechanical Engineering DepartmentPunjabi UniversityPatialaIndia

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