Structural Engineering and Mechanics

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Stress analysis of rotating annular hyperbolic discs obeying a pressure-dependent yield criterion

  • Jeong, Woncheol (Department of Materials Science and Engineering, Seoul National University) ;
  • Chung, Kwansoo (Department of Materials Science and Engineering, Research Institute of Advanced Materials, Engineering Research Institute, Seoul National University)
  • Received : 2015.10.30
  • Accepted : 2016.03.26
  • Published : 2016.05.25
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Abstract

The Drucker-Prager yield criterion is combined with an equilibrium equation to provide the elastic-plastic stress distribution within rotating annular hyperbolic discs and the residual stress distribution when the angular speed becomes zero. It is verified that unloading is purely elastic for the range of parameters used in the present study. A numerical technique is only necessary to solve an ordinary differential equation. The primary objective of this paper is to examine the effect of the parameter that controls the deviation of the Drucker-Prager yield criterion from the von Mises yield criterion and the geometric parameter that controls the profile of hyperbolic discs on the stress distribution at loading and the residual stress distribution.

Keywords

Acknowledgement

Supported by : National Research Foundation of Korea

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