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Advances in Tribology
Volume 2012, Article ID 472794, 8 pages
http://dx.doi.org/10.1155/2012/472794
Research Article

Effect of Strain Hardening on Elastic-Plastic Contact of a Deformable Sphere against a Rigid Flat under Full Stick Contact Condition

Department of Mechanical Engineering, Jadavpur University, Kolkata 700032, India

Received 7 June 2011; Revised 25 October 2011; Accepted 27 November 2011

Academic Editor: Kambiz Farhang

Copyright © 2012 Biplab Chatterjee and Prasanta Sahoo. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The present study considers the effect of strain hardening on elastic-plastic contact of a deformable sphere with a rigid flat under full stick contact condition using commercial finite element software ANSYS. Different values of tangent modulus are considered to study the effect of strain hardening. It is found that under a full stick contact condition, strain hardening greatly influences the contact parameters. Comparison has also been made between perfect slip and full stick contact conditions. It is observed that the contact conditions have negligible effect on contact parameters. Studies on isotropic and kinematic hardening models reveal that the material with isotropic hardening has the higher load carrying capacity than that of kinematic hardening particularly for higher strain hardening.