Machines. Technologies. Materials.
Vol. 19 (2025), Issue 7, pg(s) 268-271

MATERIALS

Relationship between mechanical parameters of shear and tensile strength of polymer materials obtained by FDM extrusion of objects

  • 1 Bulgarian Academy of Science, IICT, Sofia, Bulgaria

Abstract

This work examines the relationship between two of the most important mechanical parameters: shear and tensile strength in 3D printed polymer test specimens using Fused Deposition Modeling. Different types of materials were used, including those that are mechanically strong, easy to print, flexible, and heat-resistant, to determine their behavior. The study was conducted by testing test specimens printed with the same characteristics of percentage filling and pattern, layer height, and printing direction. The ratio between the shear strength and tensile strength of seven polymer materials with 30 % infill in percent was calculated. The values were compared with those of metals and polymers with 100 % density, and an estimate of the coefficient between the two parameters was made.

Keywords

References

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