Figure 4

Force–time curves in OSD and TSD for different cantilever stiffness of 1.6, 5.9, 13 kN/m, respectively, with the humidity of 10% and environment temperature of 16 degrees Celsius. (a) Curve in OSD and a loading displacement of 200 μm with different cantilever stiffness (diameter D = 4.8 mm, detaching velocity v = 625 μm/s); (b) Curve in TSD, first detaching displacement of 175 μm and a loading displacement of 200 μm with different cantilever stiffness (diameter D = 4.8 mm, detaching velocity v = 625 μm/s).