Influence of Rectilinear Infill Parameters on Mechanical Behavior of 3D Printed Parts - A FEM Approach

“Eftimie Murgu” University of Resita
Traian Vuia Square, No. 1-4, Resita, Romania
E-mail: v.cojocaru@uem.ro

Abstract: In order to reduce manufacturing time and material consumption, a 3D printed component can be made with a solid shell and an infill matrix for the internal volume. This infill matrix can have different geometries and different degrees of filling. The paper follows the analysis, by finite elements method, of the stresses and deformations that appear in a sample with rectilinear infill. The influence of infill parameters on the mechanical properties of the parts is studied using 18 distinct geometries. The variation of maximum equivalent von Mises stresses correlated with total material consummation (volume) show that, at similar material consumption, the part with a high number of cells has a higher strength.

Keywords: 3D-printing, infill, FEM, mechanical properties.

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References

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