A scientific publication titled “Glass Fiber-Reinforced Extrusion 3D-Printed Composites: Experimental and Numerical Study of Mechanical Properties” was co-authored by Econ and released in Polymers scientific journal on 11 January.
Econ is co-author of a study published in the international scientific journal Polymers, which investigates the mechanical properties of glass fiber-reinforced extruded 3D-printed composites using experimental and numerical methods. Polymers is an international, peer-reviewed, open-access scientific journal of polymer science, published online semimonthly by MDPI. It publishes research papers, communications and review articles, providing an interdisciplinary forum for publishing polymer science-related articles.
One of the co-authors of the article published on 11 January is Ph.D.Tamás Turcsán our Simulation Group Leader.
Abstract of the article
Knowledge of the properties of 3D printed bodies in both the industrial and research sectors is essential to make additive manufacturing as attractive as possible compared to traditional manufacturing methods. Recent years brought significant advances in 3D printing materials and 3D printers, but there is still room for improvement regarding printing parameters. This paper discusses four 3D printing parameters that affect the properties of final products made with chopped glass fiber-filled nylon filaments. These parameters are printing temperature, nozzle diameter, layer height, and infill orientation. By fitting a polynomial function to the measured data points, it was also possible to calculate the tensile strength, flexural strength, and Young’s modulus of the 3D-printed samples based on their printing parameters. Pearson correlation analysis was used to determine the impact of each parameter on all three mechanical properties investigated.
The infill orientation and printing temperature significantly affected both strengths and Young’s modulus, while the effect of nozzle diameters and layer heights depended on the infill orientation used. Also, a model was established to predict the three mechanical properties of the samples based on the four major parameters used. As expected from a fiber-reinforced material, the infill orientation affected most significantly the tensile strength, flexural strength, and Young’s modulus. The temperature was also substantial, while the nozzle diameter and layer height effect were situational.
Read the article online here. (In English)