WIT Press


Stiffness And Deformation Of Asperities In A Rough Contact

Price

Free (open access)

Paper DOI

10.2495/CON990061

Volume

24

Pages

10

Published

1999

Size

573 kb

Author(s)

A. Haiahem & L. Flamand

Abstract

In rough contacts the load is transmitted through the micro-contacts generated the interactions between the asperities. These micro-contacts are submitted by pressures and important stresses appear in the superficial layers close to the surface which lead to plastic deformation of the asperities. In our experimental work, we study the contact between a rough surface and a flat supphire. The samples used are Nickel electroformaging with quasi-sinusoidal roughness. The elastic and plastic parts of the deformation process of the roughness are determined, the experimental apparatus is composed of the loading system and an interferometric microscope in order to measure deformations. The values of the elastic deformation ar

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