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Memory effects in friction : the role of sliding heterogeneities
Vincenzo Fazio, Vito Acito, Fabien Amiot, Christian Frétigny and Antoine Chateauminois
Proceedings of the Royal Society A, 2021
Data repository
All the data are supplied as *.txt (ASCII) files.
- Fig.3 : Vector plot of the friction force along a piecewise rectilinear motion where the orientation of the imposed linear motion is changed.
experimental
point contact calculations
- Fig.4 : Orientation of the friction force after a change in the direction of the imposed linear motion.
experimental data
simulation data
- Fig5 : Traces of the normalized friction force after a change at in the direction of the imposed linear motion.
- Fig.6 : Orientation of the velocity field at the surface of the PDMS substrate after a change in the direction of the imposed motion.
velocity field - vector plot
velocity field - coordinates of the contact edge
friction force angle
- Fig.7 : Steady-state circular sliding trajectories. Orientation of the friction force as a function of the normalized radius of the trajectory.
experimental data
simulation data
- Fig.9 : phase diagram for sine wave motions.
experimental data a0=1.3 mm
experimental data a0=1.7 mm
experimental data a0=2.0 mm
theoretical_boundary
- Fig.10 : Vector plots of the velocity field at the surface of the PDMS substrate at two positions along a sinus wave cycle in the stick-slip regime.
position A-vector plot
position A-contact edge
position B-vector plot
position B-contact edge
- Fig.12 : Normalized friction force as a function of the normalized distance during a velocity step.
0.001-0.01 mm/s - experimental
0.001-0.01 mm/s - simulations
0.01-0.001 mm/s - experimental
0.01-0.001 mm/s - simulations
0.1-1 mm/s - experimental
- Fig.13 : Profiles of the normalized sliding velocity across the contact zone during velocity steps
0.001-0.01 mm/s - experimental
0.001-0.01 mm/s - simulations
0.01-0.001 mm/s - experimental
0.01-0.001 mm/s - simulations