In this work, an investigation of the relationship between two printing parameters, i.e. infill pattern, and infill density were conducted on the Polylactic Acid (PLA) material. Three infill densities, 25%, 50%, and 75%, and three infill patterns, grid, tri-hexagon, and concentric, were chosen. The tensile test, ASTM D638, was employed to obtain the material properties based on these two printing parameters. An open-source 3D printing slicer software, Cura, was used to manufacture the tensile specimens. The Young's modulus, yield strength, and ultimate strength were recorded and examined.

In this paper, the compressive behavior of 3D printed column structure using the Miura-origami pattern is investigated. Polylactic Acid (PLA) material was used to make the specimen with various printing parameters, i.e. infill pattern and density. Moreover, six kinds of origami patterns with different folding angles and wall thicknesses were tested. Finally, the elastic and plastic deformation behavior under compressive load is examined. In addition, this study is expected to give an impact on developing an innovative engineering design by the use of the Miura-Ori pattern.

This paper presents the finite element analysis (FEA) of 3D printed Miura origami column under uniaxial compressive loading condition. The finite element model (FEM) was developed under the elastic-perfectly plastic material model. Investigation on the yield strength and compressive modulus with two varied parameters, i.e. angle and thickness of the Miura origami column was conducted. Abaqus 6.14 software was used to conduct the simulation of the compression test. The simulation result is then compared with and examined to the referred experimental data.