Experimental vs. Simulation model
The experimental data for the cases of Ra=1.95 µm were compared with results of the analytical model and of the numerical simulation, as shown in Figure 8. At the lowest roughness the friction model and the simulation could not describe the actual tribological process. In fact, when the mould surfaces are very smooth, Ra=0.05 µm, the polymer deforms only elastically as it was observed in the numerical simulations.