Journal
SURFACES
Volume 3, Issue 3, Pages 505-515Publisher
MDPI
DOI: 10.3390/surfaces3030036
Keywords
impulse pressure; graphene-like nanoribbons (GLNR); split Hopkinson pressure bar (SHPB); microstructure; signal processing
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Graphene-like nanoribbons (GLNRs) were fabricated (length-20 mu m; width-2 mu m) and subjected to blast-like pulsed pressure >1.5 GPa (pulse speed approximate to 1 Mach, impulse duration, approximate to mu s) to examine the amount of absorption. GLNRs prepared by the chemical vapor deposition technique via controlled biomass combustion were subjected to investigate the structure-property characteristics using microspectroscopic techniques. Following this, GLNRs were employed to high strain rate (HSR) studies with the help of the technique known as split Hopkinson pressure bar (SHPB) to evaluate numerous dynamic parameters. The parameters were extracted from variations in the stress and strain rates. Their analysis provided insight into the damping response of blast energy within GLNRs. By and large, the impact generated modified the microstructure, exhibiting modifications in the number of layers, conjugated loops, and dynamic disorder. Signal processing analysis carried out for incident and transmitted impulse pressure revealed an interaction mechanism of shock wave with GLNR. Details are presented.
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