Compression behaviour of pa2200 lattice structures

Abstract

This paper is aimed at studying lattice structures for medical applications. This concerns all steps from the design phase, which includes geometry optimization through finite element analysis, fabrication through additive manufacturing, part quality control and mechanical testing at compression. The experimental planning includes several variation factors, from design (such as geometry or dimension of key parameters) to additive manufacturing (such as the thickness of the manufacturing layer). Five specimens of each topology (diamond, octet-truss and cube, with 5 and 10 mm for the strut diameter and 60-70% porosity) were manufactured with 0,06 and 0,1 mm printing layers. A difference between the additive manufacturing processes was determined after measuring 30 of the fabricated specimens. Compressive testing showed different behaviour for each geometry.