Open AccessThe effects of design parameters on the elastic properties of PLA-Graphite composites fabricated by 3D printing
Author(s) -
Viktor Rubashevskyi,
Sergiy Shukayev
Publication year - 2021
Publication title -
progresivna tehnìka, tehnologìâ ta ìnženerna osvìta
Language(s) - English
Resource type - Journals
ISSN - 2409-7160
DOI - 10.20535/2409-7160.2021.xxii.238966
Subject(s) - materials science , composite material , factorial experiment , graphite , ultimate tensile strength , elastic modulus , ceramic , 3d printing , elasticity (physics) , fused deposition modeling , young's modulus , composite number , computer science , machine learning
. Recently, in 3D printing, consumables such as polymers, metals, and ceramics are being replaced with composites, which makes it possible to enhance the mechanical and other important properties of products.
The purpose of this study is to investigate the effects that the orientation and thickness of the layers of printed samples made of composite monofilament based on PLA+ with a 5% content of layered graphite, and other such parameters, have on the elastic properties of the printed samples. The samples, developed in accordance with the DSTU EN ISO 527-2: 2018 standard, were printed using the FDM technology with three different orientation angles (0o, 45o, 90o) and three layer thicknesses (0,1 mm, 0,2 mm, 0,3 mm) for each angle. Tensile tests were performed using the complete factorial experiment design (consisting of two factors at three levels, with nine tests in total). Based on the results of these tests, a regression model was developed to describe the relationship between the (effective) modulus of elasticity and the selected design parameters.