GDR MePhy

The aim of the workshop was to present recent advances and important results in the study of frictional adhesion in soft materials, as well as give a picture of results now firmly established.
How does friction and/or adhesion take place in soft or visco-elastic materials, such as elastomers?
What is the relationship between adhesion and friction ?
35 participants attended the workshop, several discussions were focused on the nature of dissipation in experiments such as peeling or sliding with various materials : viscoelastic adhesive, poroelastic gels or soft elastomer, at different scales, and on substrates chemically treated.

Keynote lecture were be presented by Manoj Chaudhury (Lehigh Univ, Pennsylvania, USA) and Hugh Brown (University of Wollongong, New South Wales, Australia).

The language of the wokshop was english.

Pdf of some presentations

• Brown Hugh (U. Wollongong) Some experiments on slip, adhesion and friction
• Chakrabarti Aditi (U. Lehigh) Elasticity mediated long-range attraction of particles
• Mao Bosi (CRPP) Friction and syneresis in agar plates
• Chateauminois Antoine (SIMM) Contact and friction of rubber with model rough surfaces
• Ronsin Olivier (INSP) Friction of hydrogels

• 9h30-9h45 Welcoming coffee
• 9h45-10h25 Brown Hugh (U. Wollongong) Some experiments on slip, adhesion and friction

1. 10h25-10h45 Chennevière Alexis (LPS Orsay) end-tethered polymer chains dynamics and slip at interfaces
2. 10h45-11h05 Chakrabarti Aditi (U. Lehigh) Elasticity mediated long-range attraction of particles

• 11h05-11h20 Discussion – Coffee

1. 11h20-11h40 Elziere Paul (SIMM) Laminated glass: a dynamic rupture of adhesion
2. 11h40-12h00 Barthel Etienne (SIMM) 2D buckle with mixity dependent adhesion: a quasi analytical model
3. 12h00-12h10 Mao Bosi (CRPP) Friction and syneresis in agar plates

• 12h10-13h30 Lunch – Coffee
• 13h30-14h10 Manoj Chaudhury (U. Lehigh) Studies on Adhesion, Friction and Their Relation

1. 14h10-14h30 Prevost Alexis (L. Jean Perrin) Probing Locally the Onset of Slippage at a Model Multicontact Interface
2. 14h30-14h50 Chateauminois Antoine (SIMM) Contact and friction of rubber with model rough surfaces
3. 14h50-15h10 Poulard Christophe (LPS Orsay) First order transition for rough adhesive contact

• 15h10-15h40 Discussion – Coffee

1. 15h40-16h00 Ronsin Olivier (INSP) Friction of hydrogels
2. 16h00-16h20 Ponce Suomi (PMMH) Friction in the peeling test
3. 16h20-16h40 Villey Richard (SIMM) Effect of non-linear rheology on peeling
4. 16h40-17h00 Ciccotti Matteo (SIMM) Dissipation mechanisms in the peeling of soft adhesives

Buffet lunch was provided on site at ESPCI as a way to foster interaction and discussion.

Where and When

35 participants