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Theoretical and Experimental Investigations of an Elasto-Plastic Circular Contact Bounded by Real Rough Surfaces

[+] Author Affiliations
Dorel Prodan, Emanuel Diaconescu

University of Suceava, Suceava, Romania

Paper No. 2003-TRIB-0281, pp. 141-148; 8 pages
doi:10.1115/2003-TRIB-0281
From:
  • STLE/ASME 2003 International Joint Tribology Conference
  • Contact Mechanics
  • Ponte Vedra Beach, Florida, USA, October 26–29, 2003
  • Conference Sponsors: Tribology Division
  • ISBN: 0-7918-3706-8 | eISBN: 0-7918-3704-1
  • Copyright © 2003 by ASME

abstract

To investigate the pressure distribution and the stress state in a real elasto-plastic circular contact, bearing balls of two different degrees of surface finishing were used. These were pressed against a polished flat surface made of softer steel. The surface microtopography data measured in each case by a laser profilometry was introduced in a numerical program developed to evaluate the pressure distribution, stress state and residual deformations for an elasto-plastic material with non-linear hardening. The dimension of calculated contact plastic deformations compare favorably with those found experimentally by aid of a laser profilometer.

Copyright © 2003 by ASME

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