Materials Science

, Volume 39, Issue 1, pp 54–63 | Cite as

Running in of Moving Half Spaces in the Case of Partial Wear of an Asperity on the Contact Surface

  • R. M. Martynyak
  • R. M. Shvets'
  • A. V. Glod


We study the process of contact interaction of two elastic moving isotropic half spaces one of which has a gently sloping symmetric cylindrical asperity. The statement of the problem is based on the model of fatigue fracture caused by friction according to which the process of wear starts as soon as the specific friction force in the region of friction exceeds a certain threshold value. We deduce a singular integrodifferential equation for the function of thickness of the worn-out material at each point of time and determine the region where the process of wear originates as well as the shape of the asperity and contact pressure established after the period of running in of the contact surfaces.


Fatigue Contact Surface Friction Force Fatigue Fracture Contact Pressure 
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Copyright information

© Plenum Publishing Corporation 2003

Authors and Affiliations

  • R. M. Martynyak
    • 1
  • R. M. Shvets'
    • 1
  • A. V. Glod
    • 1
  1. 1.Pidstryhach Institute for Applied Problems in Mechanics and MathematicsUkrainian Academy of SciencesLviv

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