Deformation Behaviour and Energy Absorption of 3D Printed Polymeric Gyroid Structures

This study investigates the deformation behaviour of gyroid lattice structures fabricated via fused deposition modelling 3D printing technology, utilising neat acrylonitrile butadiene styrene and short carbon fibre-reinforced ABS thermoplastics.Initially, a 3D model of the gyroid cellular structure was generated using K3DSurf mathematical software and subsequently 3D printed.The 3D printing layer thickness during the 3D printing process was 150 m, and the diameter of the filaments was 1.75 mm in diameter.The study employs quasi static uniaxial compression testing to analyse the behaviour of these gyroid lattice structures.The compression tests were performed according to the American Society for Testing and Materials D1621-00 standard.Results indicate distinct deformation behaviours depending on the material used, with short carbon fibre reinforced ABS gyroid cellular structures exhibiting higher strain values and, more energy absorption capabilities compared to neat ABS counterparts.Furthermore, the study highlights the challenges and opportunities associated with fabricating and characterising complex lattice structures, shedding light on their potential applications in engineering disciplines.