PSI - Issue 56

ScienceDirect Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com

www.elsevier.com/locate/procedia

Procedia Structural Integrity 56 (2024) 138–143

© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the SIRAMM23 organizers Abstract The aim of this paper was to observe the behavior of recycled 3D printed polyethylene terephthalate glycol (PETG) specimens and 3D printed raw specimens. In order to extrude the recycled grains into a filament, a Felfil evo filament extruder was used. The recycled filament was extruded from PETG at a temperature of 195°C and with a speed of 7 rpm according to the manufacturers ’ requirements. Subsequently, different colors of the raw filament were printed on tensile specimens using Prusa i3 MK3S Original to compare the results between the recycled filament and the manufactured one. After printing the samples, the tensile tests were performed on the Zwick machine, with a capacity of 5KN. For the determination of the strain state in the test specimens, digital image correlation was used. A good correlation between the results was observed. Digital image correlation helped to better understand of the distribution of true principal strain in the recycled and raw specimens. © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the SIRAMM23 organizers Keywords: polyethylene terephthalate glycol, fused deposition modelling, mechanical behaviour, recycling. Structural Integrity and Reliability of Advanced Materials obtained through Additive Manufacturing (SIRAMM23) Mechanical behavior of recycled FDM printed parts from PETG in the circular economy Sergiu- Valentin Galațanu a , Fátima Nunes Serralha b , Mihai- Petru Mărghitaș a , Corina Șoșdean c, *, Cosmin-Florin Popa a , Linul Emanoil a and Liviu Marșavina a a Department of Mechanics and Strength of Materials, Politehnica University of Timisoara, Mihai Viteazu Bd., 300222 Timisoara, Romania b Instituto Politécnico de Setubal, Campus do IPS – Estefanilha, 2910-761 Setúbal, Portugal c Department of Mechatronics, Politehnica University of Timisoara, Mihai Viteazu Bd., 300222 Timisoara, Romania

* Corresponding author. E-mail address: corina.sosdean@upt.ro

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the SIRAMM23 organizers

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the SIRAMM23 organizers 10.1016/j.prostr.2024.02.048