Investigation of the tensile strength of polymer materials obtained through 3D printing technologies
2023
Authors
Vasiljević, MarijaPejčić, Danilo
Lekić, Luka
Popović, Mihajlo
Pjević, Miloš
Milovanović, Aleksa
Conference object (Published version)
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The subject of this paper is the experimental testing of 3D-printed polymer materials and their tensile strength. The focus was on testing polymer materials that are easily accessible, cost-effective, and do not have documented mechanical characteristics using inexpensive, hobbyist printers that are significantly cheaper compared to industrial printers. The specimens were manufactured according to the ISO 20753 standard using polylactic acid (PLA). The applied technology for producing these specimens was Fused Filament Fabrication. In this study, the specimens were printed on an Ender 3 printer in a direction perpendicular to the stretching direction to obtain maximum strength. The specimens were designed with a minimal number of walls to support the structure. The variable during this testing was the infill, which ranged from 15% to 100% using a grid geometric structure. After their fabrication, testing was conducted using a Shimadzu AGS - X 100kN universal testing machine with a cros...shead speed of 1mm/min. Multiple tests were performed for each infill percentage to ensure reliable results. As expected, specimens with higher infill percentages exhibited greater tensile strength. However, a higher infill percentage also means increased material costs and product mass. The essence of 3D printing lies in not using 100% infill, as it allows for material and time savings, aiming to produce a balanced product with desirable characteristics and minimal mass.
It is planned that further research will focus on investigating the influence of infill pattern on tensile strength, the impact of temperature on tensile strength, and the adhesive forces between material layers.
Keywords:
Additive technologies / Fused Filament Fabrication (FFF) / Polylactic Acid (PLA) / Infill percentage / Tensile strengthSource:
International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor), 2023, 92-Publisher:
- Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia
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Inovacioni centarTY - CONF AU - Vasiljević, Marija AU - Pejčić, Danilo AU - Lekić, Luka AU - Popović, Mihajlo AU - Pjević, Miloš AU - Milovanović, Aleksa PY - 2023 UR - https://machinery.mas.bg.ac.rs/handle/123456789/7374 AB - The subject of this paper is the experimental testing of 3D-printed polymer materials and their tensile strength. The focus was on testing polymer materials that are easily accessible, cost-effective, and do not have documented mechanical characteristics using inexpensive, hobbyist printers that are significantly cheaper compared to industrial printers. The specimens were manufactured according to the ISO 20753 standard using polylactic acid (PLA). The applied technology for producing these specimens was Fused Filament Fabrication. In this study, the specimens were printed on an Ender 3 printer in a direction perpendicular to the stretching direction to obtain maximum strength. The specimens were designed with a minimal number of walls to support the structure. The variable during this testing was the infill, which ranged from 15% to 100% using a grid geometric structure. After their fabrication, testing was conducted using a Shimadzu AGS - X 100kN universal testing machine with a crosshead speed of 1mm/min. Multiple tests were performed for each infill percentage to ensure reliable results. As expected, specimens with higher infill percentages exhibited greater tensile strength. However, a higher infill percentage also means increased material costs and product mass. The essence of 3D printing lies in not using 100% infill, as it allows for material and time savings, aiming to produce a balanced product with desirable characteristics and minimal mass. It is planned that further research will focus on investigating the influence of infill pattern on tensile strength, the impact of temperature on tensile strength, and the adhesive forces between material layers. PB - Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia C3 - International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor) T1 - Investigation of the tensile strength of polymer materials obtained through 3D printing technologies SP - 92 UR - https://hdl.handle.net/21.15107/rcub_machinery_7374 ER -
@conference{ author = "Vasiljević, Marija and Pejčić, Danilo and Lekić, Luka and Popović, Mihajlo and Pjević, Miloš and Milovanović, Aleksa", year = "2023", abstract = "The subject of this paper is the experimental testing of 3D-printed polymer materials and their tensile strength. The focus was on testing polymer materials that are easily accessible, cost-effective, and do not have documented mechanical characteristics using inexpensive, hobbyist printers that are significantly cheaper compared to industrial printers. The specimens were manufactured according to the ISO 20753 standard using polylactic acid (PLA). The applied technology for producing these specimens was Fused Filament Fabrication. In this study, the specimens were printed on an Ender 3 printer in a direction perpendicular to the stretching direction to obtain maximum strength. The specimens were designed with a minimal number of walls to support the structure. The variable during this testing was the infill, which ranged from 15% to 100% using a grid geometric structure. After their fabrication, testing was conducted using a Shimadzu AGS - X 100kN universal testing machine with a crosshead speed of 1mm/min. Multiple tests were performed for each infill percentage to ensure reliable results. As expected, specimens with higher infill percentages exhibited greater tensile strength. However, a higher infill percentage also means increased material costs and product mass. The essence of 3D printing lies in not using 100% infill, as it allows for material and time savings, aiming to produce a balanced product with desirable characteristics and minimal mass. It is planned that further research will focus on investigating the influence of infill pattern on tensile strength, the impact of temperature on tensile strength, and the adhesive forces between material layers.", publisher = "Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia", journal = "International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor)", title = "Investigation of the tensile strength of polymer materials obtained through 3D printing technologies", pages = "92", url = "https://hdl.handle.net/21.15107/rcub_machinery_7374" }
Vasiljević, M., Pejčić, D., Lekić, L., Popović, M., Pjević, M.,& Milovanović, A.. (2023). Investigation of the tensile strength of polymer materials obtained through 3D printing technologies. in International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor) Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia., 92. https://hdl.handle.net/21.15107/rcub_machinery_7374
Vasiljević M, Pejčić D, Lekić L, Popović M, Pjević M, Milovanović A. Investigation of the tensile strength of polymer materials obtained through 3D printing technologies. in International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor). 2023;:92. https://hdl.handle.net/21.15107/rcub_machinery_7374 .
Vasiljević, Marija, Pejčić, Danilo, Lekić, Luka, Popović, Mihajlo, Pjević, Miloš, Milovanović, Aleksa, "Investigation of the tensile strength of polymer materials obtained through 3D printing technologies" in International conference of experimental and numerical investigations and new technologies (2023 ; Zlatibor) (2023):92, https://hdl.handle.net/21.15107/rcub_machinery_7374 .