Figure 5
From: Non-cuttable material created through local resonance and strain rate effects
Resistance mechanism to angle grinder cutting. (a) cylindrical sample for CT study, (b) ceramic sphere applied point load to the rim of the rotating disc, inducing vibrations and dynamic interface, (c) CT image (color-coded) showing the interaction between the partially cut sphere and the rotating disc, (d) rotating disc cut the sphere partially and then the cutting ceased to progress, (e) low purity employed alumina ensured sphere fragmentation into particles in the range of 50–500 µm, (f) ceramic sphere applied localized load to the tip of the rotating disc resulting in disc vibrations.
