Journal of
Mechanical Engineering Research

  • Abbreviation: J. Mech. Eng. Res.
  • Language: English
  • ISSN: 2141-2383
  • DOI: 10.5897/JMER
  • Start Year: 2009
  • Published Articles: 118

Full Length Research Paper

An upper-bound solution for forging load of an elliptical disc

  K. S. Phogat1*, A. K. Shrama2, R. K. Ranjan2 and V. K. Bajpai3        
  1Department of Mechanical Engineering, IET, JK Lakshmipat University, Jaipur, Rajasthan, India. 2Department of Mechanical Engineering, Gyan Ganga Institute of Technology and Sciences Jabalpur, MP, India. 3 Department of Mechanical Engineering, India.
Email: [email protected]

  •  Accepted: 06 July 2011
  •  Published: 30 April 2012



The present work critically emphasis on the deformation limit of an elliptical disc. The upper- bound theorem has been used to determine the forging load. A suitable kinematically admissible velocity fields for three dimensional deformations have been chosen for analyzing deformation limit as well as the bulging of disc. During the analysis satisfactory friction factor, yield strength and other process parameter have been assumed and mathematically analyzed. It has been seen that parametric and experimental analysis makes very close agreement. This paper will be worthy for industrial applications in estimating forging load of such shapes.


Key words: Elliptical disc, deformation limit, upper- bound theorem.