Self-amplification of solid friction in interleaved assemblies

Self-amplification of solid friction in interleaved assemblies 
Physical Review Letters, 116 (2016) 015502-(1-5)

H. Alarcon, T. Salez, C. Poulard, J.-F. Bloch, E. Raphael, K. Dalnoki-Veress, F. Restagno

It is nearly impossible to separate two interleaved phone books when held by their spines. A full understanding of this astonishing demonstration of solid friction in complex assemblies remains elusive. In this Letter, we report on experiments with controlled booklets and show that the force required increases sharply with the number of sheets. A model captures the effect of the number of sheets, their thickness, and the overlapping distance. Furthermore, the data collapse onto a self-similar master curve with one
dimensionless amplification parameter. In addition to solving a long-standing familiar enigma, this model system provides a framework with which one can accurately measure friction forces and coefficients at low loads, and that has relevance to complex assemblies from the macro- to the nanoscale

Haut de page


À lire aussi...

Lancement des travaux de l’IPGG

Le 1er septembre 2014, Marie-Christine Lemardeley, Jean-Louis Missika, Jean-François Joanny et Patrick Tabeling ont officiellement lancé les (...) 

> Lire la suite...

Résultats de PC FOCUS 2017

PC Focus, grand évènement interne de l’ESPCI Paris, rassemble chaque année sur une journée entière les différents personnels de l’école : élèves, (...) 

> Lire la suite...