In the contact of a cone with a rough plane the mean pressure in the contact area is constant. In particular, above a critical ratio of the opening angle of the cone with respect to the rms gradient of surface roughness, the mean pressure is the same of that for nominally flat contact, no matter how large is the normal load. We introduce a new variable, namely, the local density of contact area, whose integral over the smooth nominal contact domain gives the real contact area. The results given by the theoretical model agree with the numerical simulations of the same problem presented in the paper.
Elastic indentation of a rough surface by a conical punch / Borri-Brunetto, Mauro; Ciavarella, Michele. - In: MECCANICA. - ISSN 0025-6455. - STAMPA. - (2018). [10.1007/s11012-018-0877-4]
|Titolo:||Elastic indentation of a rough surface by a conical punch|
|Data di pubblicazione:||2018|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1007/s11012-018-0877-4|
|Appare nelle tipologie:||1.1 Articolo in rivista|