Table 2 Cordless drill resistance.
From: Non-cuttable material created through local resonance and strain rate effects
Material | Test sample | Duration | Testing Outcome | Penetration | Notes |
|---|---|---|---|---|---|
Our material, aluminum foam with ceramic spheres. 40 mm thick panel \({\rho }_{Proteus}^{areal}\) = 71 kg/m2 | #10 | 64 sec | Significant progress | 35 mm (88%) | |
#11 | 30 sec | Complete penetration | 40 mm (100%) | The drill did not encounter any ceramic sphere on its path. | |
#12 | 66 sec | Significant progress | 30 mm (75%) |
