Figure 7
From: Modification of the contact surfaces for improving the puncture resistance of laminar structures
Sample and experimental configurations: (a) Front surface coated with high-vacuum grease or GO solution, (b) cross-section of the aluminium sheet, (c) thickness of the high-vacuum grease layer, (d) original front surface of the aluminium sheet, (e) high-vacuum grease coated front surface of the aluminium sheet, and (f) schematic diagram of the drop-weight impact tests.
