Table 2.

Global coefficients of friction as a function of the Young’s modulus of the stratum corneum, indenter size an local coefficients of friction for both idealised and anatomical models

Analysis			Idealised		Anatomical
E SC [MPa]	R 1 [mm]	μ l	Sliding distance [mm]	μ g	Sliding distance [mm]	μ g
0.6	0.1	0	1.937	0.000	2.010	0.007
0.6	0.25	0	1.929	0.000	2.010	0.003
0.6	0.5	0	1.959	0.000	2.009	0.001
0.6	0.1	0.1	1.983	0.076	2.013	0.130
0.6	0.25	0.1	2.003	0.088	2.010	0.109
0.6	0.5	0.1	2.021	0.091	2.010	0.100
0.6	0.1	0.2	1.999	0.157	2.010	0.259
0.6	0.25	0.2	2.010	0.176	2.010	0.216
0.6	0.5	0.2	1.995	0.181	2.008	0.199
0.6	0.1	0.3	1.988	0.237	2.002	0.395
0.6	0.25	0.3	2.010	0.265	2.010	0.325
0.6	0.5	0.3	2.022	0.269	1.121	0.297a
370	0.1	0	1.993	0.000	2.015	0.034
370	0.25	0	1.966	0.000	2.005	0.002
370	0.5	0	1.973	0.000	2.010	0.001
370	0.1	0.1	1.997	0.069	2.019	0.148
370	0.25	0.1	2.001	0.088	2.007	0.111
370	0.5	0.1	1.996	0.096	2.005	0.101
370	0.1	0.2	1.170	0.157	2.004	0.291
370	0.25	0.2	1.996	0.181	2.009	0.225
370	0.5	0.2	2.002	0.194	2.010	0.206
370	0.1	0.3	0.882	0.258	2.009	0.388
370	0.25	0.3	1.001	0.278	2.011	0.343
370	0.5	0.3	1.980	0.291	2.005	0.310

^aValue estimated with quadratic regression of μ _g(μ _l) for R ₁ = 0.5 mm and E _SC = 0.6 MPa