Investigating the low-velocity impact behaviour of sandwich composite structures with 3D-printed hexagonal honeycomb core—a review

Abstract

This study aims to comprehensively review previous and present research on the dynamic responses of 3D-printed sandwich composite structures. The low-velocity impact and failure mechanisms caused by the impact load and energy absorption capabilities are discussed. Investigating the processes and mechanics of a material is an essential step in addressing the structural failure problems, which are mostly caused by a fracture. The encouraging impact resistance results have prompted researchers to explore the capabilities of structural integrity to optimize performance, which can be accomplished leveraging the enhanced material and architectural combinations of sandwich composites. The ongoing research into low-velocity behavior of fabricated sandwich composite structures with 3D-printed hexagonal honeycomb cores and varying core materials is emphasized in this study.

Review on impact, crushing response and applications of re-entrant core sandwich structures

“…Generally, re-entrant cores were mentioned in the literature as part of the auxetic structures (Bohara et al , 2023; Chordiya et al , 2022; Kueh et al , 2023; Makweche and Dundu, 2022; Nur Ainin et al , 2023; Patekar and Kale, 2022; Xue et al , 2023). The main reviewed aspects of sandwich cores were core design, mechanical properties, manufacturing methods, impact response, blast response and the applications of such structures.…”

Fusedly Deposited Frequency-Selective Composites Fabricated by a Dual-Nozzle 3D Printing as Microwave Filter

“…Additive manufacturing has garnered attention as an innovative manufacturing technique because it can reduce material waste, save energy, and lower prototyping costs. This method, with manufacturing flexibility, has been developed in a variety of applications including electrochemical energy storage devices (lithium-ion batteries [ 1 ], spiral electrodes [ 2 ]), biofabrication (tissues and organs [ 3 , 4 ]), aerospace or lightweight structures (gas turbine engine [ 5 ], honeycomb [ 6 , 7 ], and lattice [ 8 ]), and other research fields. Additive manufacturing depends on the types of materials and additive methods [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ].…”

“…This method, with manufacturing flexibility, has been developed in a variety of applications including electrochemical energy storage devices (lithium-ion batteries [ 1 ], spiral electrodes [ 2 ]), biofabrication (tissues and organs [ 3 , 4 ]), aerospace or lightweight structures (gas turbine engine [ 5 ], honeycomb [ 6 , 7 ], and lattice [ 8 ]), and other research fields. Additive manufacturing depends on the types of materials and additive methods [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. In fused deposition modeling (FDM) [ 6 , 7 , 8 , 9 , 10 ], one of the representative additive manufacturing methods, a polymeric filament is melted and extruded from a nozzle, and then a designed structure is built up one layer at a time.…”

“…Additive manufacturing depends on the types of materials and additive methods [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. In fused deposition modeling (FDM) [ 6 , 7 , 8 , 9 , 10 ], one of the representative additive manufacturing methods, a polymeric filament is melted and extruded from a nozzle, and then a designed structure is built up one layer at a time. In general, due to the method of stacking filaments with a circular cross-section one by one, the layers can be clearly counted by observation of microstructures of the cross section or edge of the structure.…”