Viscoelastic-Viscoplastic Modelling of the Scratch Response of PMMA

Table 1

Penetration depth measured for different scratching speeds and different load applied.

𝐹𝑛 in mN	𝑉=0.1 𝜇m/s	𝑉=1 𝜇m/s	𝑉=10 𝜇m/s
20	870 ± 10	800 ± 8	730 ± 9
40	1550 ± 10	1420 ± 8	1280 ± 8
80	2780 ± 12	2540 ± 10	2240 ± 11