Investigation of 3D Printed Pyramidal Lattice Core Continuous Filament Carbon Fiber Reinforced Thermoplastic Matrix Sandwich Panels by Various Production Parameters

Yazıcı M., Bayram T.

ICCS23 - 23rd International Conference on Composite Structures & MECHCOMP6 - 6th International Conference on Mechanics of Composites, Porto, Portugal, 1 - 04 September 2020, vol.1, pp.1

  • Publication Type: Conference Paper / Summary Text
  • Volume: 1
  • City: Porto
  • Country: Portugal
  • Page Numbers: pp.1
  • Bursa Uludag University Affiliated: Yes


Today, sandwich structures produced using carbon fiber reinforced thermoplastic polymers (CFRTP)

with Low density, excellent mechanical properties and application areas are important research subjects

in the composite material studies. In this study, composite sandwich panels having pyramidal lattice

core structures were produced by using a manufactured special 3d printer. The production of CFRP monofilament used in this sandwich structure was realized in an external extruder with a specially designed mold. These sandwich structures typically consist of two parts, but in this study, they are produced by monolithically as combined core and surface plates by using additive manufacturing techniques. In this study, the printer used was specially developed and sandwich composite panels were produced by using particular printing head setup, laser and printing path mechanisms. The effect of printing parameters and printing paths on mechanical performances were investigated. Mechanical performance of these sandwich structures were obtained by using static compression, quasi-static and impact three-point bending experiments. With these developed technologies, their contribution to the development of ultra-lightweight composite structures has been examined.