Further, dynamic mechanical analysis was conducted under a frequency sweep at room temperature to examine the viscoelastic properties the material exhibited high elastic behaviour. Based on these tests, the material’s deformation and fracture behaviour can be considered elastic-brittle. Quasi-static tensile and compression tests were carried out based on ASTM standards to characterise the elastic-plastic properties of the manufactured material. Nylon reinforced with short carbon fibres was selected, and fused deposition modelling was used to fabricate solid quasi-isotropic structures. The aim of this research is to investigate the dynamic fracture behaviour of AM polymer composites under ballistic impact.
While many studies focused on quasi-static performance of AM materials and structures, investigations on the dynamic performance of these materials are still limited, especially for polymers and composites. Recent technological advancements led to active research in the field of additive manufacturing (AM) thanks to its ability to fabricate complex structures with reduced material waste.
