Researchers from the University of Twente have succeeded in clearly identifying why droplets on soft, squishy surfaces react differently than on hard surfaces. A water droplet, for example, moves very differently over jelly than over glass, but the science of how this works has never been investig...
The results of this study have shown that better residual stress distribution is obtained for the lower initial surface roughness and higher conditions of loading when the friction coefficient's value is neglected. The present paper is a continuation of our previous contribution [22]. Therefore, ...
(friction and hardness) so that the virtual surfaces can be identified as different to each other (e.g., the user of the haptic device should feel that they were touching surfaces with different levels of friction); and (d) if the individual characteristics of participants have an impact on...
internal friction angle, tensile strength = 4.0 MPa; Young’s modulus E = 3.0 GPa; and Poisson’s ratio ν = 0.24. Under basic conditions, initial and residual crack apertures were assumed to be 10, with crack shear and normal stiffness at 100 GPa/m. The simulated rock crack propagation ...
However, for the sample treated for 12 h, the wear surface appeared less developed, with more areas exhibiting a smoother texture (see Figure 4g–i). The observed surfaces did not show significant differences from each other. Based on the photographic documentation, it cannot be confirmed that ...