Investigation of the temperature effect on the mechanical properties of 3D printed composites

Year 2021, Volume: 5 Issue: 2, 188 - 193, 15.08.2021

Hamed Tanabi

https://doi.org/10.35860/iarej.862304

Cited By: 8

Abstract

Short fiber reinforced additively manufactured components are lightweight yet durable materials with a wide range of potential applications in various industries such as aerospace and automotive. The fabricated specimens may be subjected to various thermal conditions ranging from -20 up to 60 °C during their service life. This study aims to investigate the of effect temperature on mechanical properties of the 3D printed short glass-fiber-reinforced polyamide 6 (GFPA6) composites and ABS as an unreinforced polymer. In accordance with ASTM D638, tensile test specimens were fabricated using Fused Deposition Modeling (FDM) technique. The fabricated samples were subjected to tensile load to investigate the stiffness and strength while temperatures set to -20, 20, 40, and 60 °C. The mechanisms of failure were identified based on fracture surface microscopic analysis. The glass fiber reinforced PA6 showed higher stiffness and strength up to 56% and 59% compare to ABS. At elevated temperatures, specimens showed a large deformation with a significant decline in tensile strength. It was observed that the dominant failure mechanism for ABS was the breakage of the deposed filaments while fiber pull-out was the dominant failure mechanism for GFPA6 material.

Keywords

Additive manufacturing, FDM, Fiber reinforcement, Structural analysis, 3D print

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