Characterisation of mechanical properties of materials used in 3D printing

The mechanical properties of 19 materials used in 3D printing were experimentally tested. Mechanical properties (mostly elastic modulus and strength, but not only) were obtained and compared for filaments, single-extruded fibres, and dog-bone type specimens printed with printing angles 0, 90° and intermediate angles. Thus, anisotropy of properties was considered. The density, modulus of elasticity, and tensile strength values were compared for all mentioned types of specimens. This research was supported by ERDF Project No. 1.1.1.1/19/A/031 "OPTITOOL, Decision Tool for Optimal Design of Smart Polymer Nanocomposite Structures Produced by 3D Printing".