Figure 5
Measured friction coefficients of shark skin under dry and wet conditions with small applied preload and high preload in different directions.
The friction coefficients with small applied preload and high preload are shown in open circles and points, respectively. Rostral, caudal, and lateral directions in dependence of the substrate roughness were tested. Schematics above the graph illustrate the sliding direction in relation to the shark skin orientation with its anisotropic arrangement of denticles.
