Publications de Gianluca Costagliola

Experimental and numerical study of the effect of surface patterning on the frictional properties of polymer surfaces

Jean-François Molinari, Gianluca Costagliola

We describe benchmark experiments to evaluate the frictional properties of laser patterned low-density polyethylene as a function of sliding velocity, normal force, and humidity. The pattern is a square lattice of square cavities with sub-mm spacing. We fi ...

2022

Investigation of Contact Clusters Between Rough Surfaces

Jean-François Molinari, Shijun Yin, Gianluca Costagliola

We investigate the persistence of micro-contacts between two elastic random rough surfaces by means of a simple model for quasi-static sliding. Contact clusters are calculated with the Boundary Element Method, then surfaces are repeatedly displaced to stud ...

SPRINGER/PLENUM PUBLISHERS2022

A Simple Mechanistic Model for Friction of Rough Partially Lubricated Surfaces

Jean-François Molinari, Tobias Brink, Gianluca Costagliola, Julie Richard

We report experimental measurements of friction between an aluminum alloy sliding over steel with various lubricant densities. Using the topography scans of the surfaces as input, we calculate the real contact area using the boundary element method and the ...

2021

Modeling and simulation in tribology across scales: An overview

Jean-François Molinari, Guillaume Anciaux, Ramin Aghababaei, Vladislav Yastrebov, Gianluca Costagliola

2018