Impact behavior of nanoengineered, 3D printed plate-lattices

Herein, we investigate the low-velocity impact behavior of polypropylene random copolymer (PPR)/multi-wall carbon nanotube (MWCNT) and high-density polyethylene (HDPE)/MWCNT plate-lattices processed via fused filament fabrication additive manufacturing, utilizing in-house nanoengineered feedstocks. We examine dynamic crushing energy absorption characteristics three typical elementary plate-lattices, namely, simple cubic (SC), body-centered (BCC) face-centered (FCC) as well hybrid (SC-BCC, SC-FCC SC-BCC-FCC) comprising different weight fractions MWCNTs at levels. The results reveal that SC-BCC-FCC nanocomposite plate-lattice offers most favorable response each constituent plate in lattice contributes to load carrying capacity for all direction vectors included plane plate. Furthermore, show impregnating into PPR HDPE significantly influences their attenuation characteristics. Compared with respective unreinforced PPR/6 wt% MWCNT evince higher (70%) than HDPE/6 (47%) due uniform dispersion effective interfacial interaction matrix. Our 3D exhibit a specific (SEA) high 19.9 J/g, demonstrating superior performance over aluminum other conventional lattices.