Journal Article

FZJ-2025-05174

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Sliding Friction of Hard Sliders on Rubber: Theory and Experiment

Xu, R.FZJ* ; Persson, B. (Corresponding author)FZJ*

2025
Springer International Publishing Cham

This record in other databases:    

Please use a persistent id in citations: doi:10.1007/s11249-025-02064-2  doi:10.34734/FZJ-2025-05174

Abstract: We present a study of sliding friction for rigid triangular steel sliders on soft rubber substrates under both lubricated and dry conditions. For rubber surfaces lubricated with a thin film of sili-cone oil, the measured sliding friction at room temperature agrees well with theoretical predictions obtained from a viscoelastic model originally developed for rolling friction. On the lubricated surface, the sliding friction is primarily due to bulk viscoelastic energy dissipation in the rubber. Themodel, which includes strain-dependent softening of the rubber modulus, accurately predicts the experimental friction curves. At lower temperatures (T = −20○ C and −40○C), the measured friction exceeds the theoretical prediction. We attribute this increase to penetration of the lubricant film bysurface asperities, leading to a larger adhesive contribution. For dry surfaces, the adhesive contribution becomes dominant. By subtracting the viscoelastic component inferred from the lubricatedcase, we estimate the interfacial frictional shear stress. This shear stress increases approximately linearly with the logarithm of the sliding speed, consistent with stress-augmented thermal activationmechanisms.

---

Contributing Institute(s):

1. Quanten-Theorie der Materialien (PGI-1)

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)

---

Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; DEAL Springer ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---