The contact area, friction force, and relative displacement evolution at the very early stage of fretting are investigated experimentally. Copper and steel spheres of various diameters are loaded against a hard sapphire flat by a range of normal loads deep into the elastic-plastic regime of deformation. A reciprocating tangential loading is then applied with a maximum loading below the static friction to avoid gross slip. Real-time and in situ direct measurements of the contact area, along with accurate measurements of the friction force and relative displacement, reveal substantial junction growth and energy dissipation mainly in the first loading cycle. The so-called “slip amplitude” is found to be attributed to residual tangential plastic deformation rather than to interfacial slip. Elastic shake-down is observed for the 2.5% hardening steel spheres while plastic shake-down is observed in the case of the elastic perfectly-plastic copper spheres.
Skip Nav Destination
Article navigation
July 2009
Research Papers
Junction Growth and Energy Dissipation at the Very Early Stage of Elastic-Plastic Spherical Contact Fretting
A. Ovcharenko,
A. Ovcharenko
Department of Mechanical Engineering,
Technion
, Haifa 32000, Israel
Search for other works by this author on:
I. Etsion
I. Etsion
Fellow ASME
Search for other works by this author on:
A. Ovcharenko
Department of Mechanical Engineering,
Technion
, Haifa 32000, Israel
I. Etsion
Fellow ASME
J. Tribol. Jul 2009, 131(3): 031602 (8 pages)
Published Online: May 26, 2009
Article history
Received:
December 21, 2008
Revised:
March 20, 2009
Published:
May 26, 2009
Citation
Ovcharenko, A., and Etsion, I. (May 26, 2009). "Junction Growth and Energy Dissipation at the Very Early Stage of Elastic-Plastic Spherical Contact Fretting." ASME. J. Tribol. July 2009; 131(3): 031602. https://doi.org/10.1115/1.3123345
Download citation file:
Get Email Alerts
Related Articles
Experimental Study of Adhesive Static Friction in a Spherical Elastic-Plastic Contact
J. Tribol (April,2008)
Analysis of the Bridgman Procedure to Characterize the Mechanical Behavior of Materials in the Tensile Test: Experiments and Simulation
J. Appl. Mech (January,2005)
Critical Structures of Metal Destruction Under the Process of Wear
J. Tribol (January,2000)
Decomposition of Thermal and Mechanical Effects on Microstructure and Hardness of Hard Turned Surfaces
J. Manuf. Sci. Eng (May,2004)
Related Proceedings Papers
Related Chapters
Understanding the Problem
Design and Application of the Worm Gear
Transverse Free Vibration Analysis of Hybrid SPR Steel Joints
Proceedings of the 2010 International Conference on Mechanical, Industrial, and Manufacturing Technologies (MIMT 2010)
Introduction and Definitions
Handbook on Stiffness & Damping in Mechanical Design