Evaluation of the impact performance and energy absorption capabilities of 3D printed composites

Purpose Composites 3D printing has the potential to replace conventional manufacturing processes for engineering applications because it allows of complex shapes with possibility reducing cost. This paper aims analyse performance printed fibre reinforced polymer composites investigate energy absorption capabilities and residual properties before after impact. Design/methodology/approach Various composed carbon fibres Kevlar embedded into both Onyx nylon matrix were using Markforged-Two printers. Specimens different orientations volume fractions (Vf) printed. A drop-weight impact test was performed at energies 2, 5, 8 10 J. Flexural testing evaluate flexural strength, modulus absorbed under bending (AEUB) Additionally, tested two temperatures study their behaviour room sub-ambient temperatures. Failure modes investigated optical high depth field microscopes all composite samples. Findings Kevlar/nylon a unidirectional lay-up 50% Vf exhibited most prominent results AEUB temperature. The high-Vf showed highest ultimate strength best temperature regimes. Originality/value work, findings produced in this are entirely original objective provide further understanding its use many applications.