Logo CXI

3D trends 2022

Nov 3rd – 4th

  • slider 1
  • slider 2
  • slider 3
  • slider 4
  • slider 5

Mechanical performance of hollow sphere infill structures under compression load

Wolfgang Förster


Infill structures of additive manufactured components give not only stability, but can be used as a design feature regarding lightweight and mechanical properties. Therefore, an infill structure was investigated which consists of hollow spheres in a hexagonal closed packing. As an additional characteristic, the contact between the spheres is modelled as an intersection. A script-based design approach was used for generating the structure within a cylinder. Thus, the sphere diameter, the sphere wall thickness and the outer shell thickness can be varied. The deformation behavior was studied using compression tests on the additive manufactured cylindrical specimens.