Next Article in Journal
Solid Lubrication with MoS2: A Review
Next Article in Special Issue
Non Smooth Contact Dynamics Approach for Mechanical Systems Subjected to Friction-Induced Vibration
Previous Article in Journal
Numerical Simulation of a Slipper Model with Multi-Lands and Grooves for Hydraulic Piston Pumps and Motors in Mixed Lubrication
Article Menu
Issue 7 (July) cover image

Export Article

Open AccessArticle

Estimation of the Normal Contact Stiffness for Frictional Interface in Sticking and Sliding Conditions

DIMA, Department of Mechanical and Aerospace Engineering, “La Sapienza” University of Rome, via Eudossiana 18, 00184 Rome, Italy
Grenoble Alpes University, CNRS, IRD, IFSTTAR, ISTerre, 38000 Grenoble, France
LaMCoS, Contacts and Structural Mechanics Laboratory, University of Lyon, CNRS, INSA Lyon, UMR 5259, 20 rue des Sciences, F-69621 Villeurbanne, France
Author to whom correspondence should be addressed.
Lubricants 2019, 7(7), 56;
Received: 12 June 2019 / Revised: 21 June 2019 / Accepted: 23 June 2019 / Published: 2 July 2019
(This article belongs to the Special Issue Tribology and Contact Dynamics)
PDF [4077 KB, uploaded 2 July 2019]


Modeling of frictional contact systems with high accuracy needs the knowledge of several contact parameters, which are mainly related to the local phenomena at the contact interfaces and affect the complex dynamics of mechanical systems in a prominent way. This work presents a newer approach for identifying reliable values of the normal contact stiffness between surfaces in contact, in both sliding and sticking conditions. The combination of experimental tests, on a dedicated set-up, with finite element modeling, allowed for an indirect determination of the normal contact stiffness. The stiffness was found to increase with increasing contact pressure and decreasing roughness, while the evolution of surface topography and third-body rheology affected the contact stiffness when sliding. View Full-Text
Keywords: contact stiffness; friction; contact dynamics; numerical tribology contact stiffness; friction; contact dynamics; numerical tribology

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Tonazzi, D.; Massi, F.; Salipante, M.; Baillet, L.; Berthier, Y. Estimation of the Normal Contact Stiffness for Frictional Interface in Sticking and Sliding Conditions. Lubricants 2019, 7, 56.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Lubricants EISSN 2075-4442 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top