On the Behavior of Honeycomb, Grid and Triangular PLA Structures under Symmetric and Asymmetric Bending
Additive manufacturing technologies enable the production of components with lightweight cores, by means of infills with various patterns and densities. Together with reduced mass and material consumption, infill geometries must ensure that strength and stiffness conditions are fulfilled. For the pr...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/14/1/120 |
| _version_ | 1797438621643440128 |
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| author | Vasile Cojocaru Doina Frunzaverde Calin-Octavian Miclosina |
| author_facet | Vasile Cojocaru Doina Frunzaverde Calin-Octavian Miclosina |
| author_sort | Vasile Cojocaru |
| collection | DOAJ |
| description | Additive manufacturing technologies enable the production of components with lightweight cores, by means of infills with various patterns and densities. Together with reduced mass and material consumption, infill geometries must ensure that strength and stiffness conditions are fulfilled. For the proper correlation of the infill type with the loading case of the part, the mechanical behavior of the infill along all three principal axes of inertia has to be known. In this paper, the behavior in symmetric and asymmetric bending of three infill geometries, commonly used in 3D printing processes (honeycomb, grid and triangles) is analyzed. The variations of deflections as a function of force orientation are presented, showing that honeycomb and triangular structures exhibit similar behaviors along the <i>Y</i> and <i>Z</i> principal axes of inertia. Furthermore, the displacements obtained for the three types of structures are compared, in relation to the consumed volume of material. The larger displacements of the grid structure compared to the honeycomb and triangular structures are highlighted. |
| first_indexed | 2024-03-09T11:40:41Z |
| format | Article |
| id | doaj.art-dd77cfe5a7484949a1d5c185653aecc1 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T11:40:41Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-dd77cfe5a7484949a1d5c185653aecc12023-11-30T23:33:29ZengMDPI AGMicromachines2072-666X2022-12-0114112010.3390/mi14010120On the Behavior of Honeycomb, Grid and Triangular PLA Structures under Symmetric and Asymmetric BendingVasile Cojocaru0Doina Frunzaverde1Calin-Octavian Miclosina2Department of Engineering Science, Babeș-Bolyai University, Traian Vuia Square 1-4, 320085 Reșița, RomaniaDepartment of Engineering Science, Babeș-Bolyai University, Traian Vuia Square 1-4, 320085 Reșița, RomaniaDepartment of Engineering Science, Babeș-Bolyai University, Traian Vuia Square 1-4, 320085 Reșița, RomaniaAdditive manufacturing technologies enable the production of components with lightweight cores, by means of infills with various patterns and densities. Together with reduced mass and material consumption, infill geometries must ensure that strength and stiffness conditions are fulfilled. For the proper correlation of the infill type with the loading case of the part, the mechanical behavior of the infill along all three principal axes of inertia has to be known. In this paper, the behavior in symmetric and asymmetric bending of three infill geometries, commonly used in 3D printing processes (honeycomb, grid and triangles) is analyzed. The variations of deflections as a function of force orientation are presented, showing that honeycomb and triangular structures exhibit similar behaviors along the <i>Y</i> and <i>Z</i> principal axes of inertia. Furthermore, the displacements obtained for the three types of structures are compared, in relation to the consumed volume of material. The larger displacements of the grid structure compared to the honeycomb and triangular structures are highlighted.https://www.mdpi.com/2072-666X/14/1/120additive manufacturingfused filament fabrication (FFF)polylactic acid (PLA)honeycombgridtriangular |
| spellingShingle | Vasile Cojocaru Doina Frunzaverde Calin-Octavian Miclosina On the Behavior of Honeycomb, Grid and Triangular PLA Structures under Symmetric and Asymmetric Bending Micromachines additive manufacturing fused filament fabrication (FFF) polylactic acid (PLA) honeycomb grid triangular |
| title | On the Behavior of Honeycomb, Grid and Triangular PLA Structures under Symmetric and Asymmetric Bending |
| title_full | On the Behavior of Honeycomb, Grid and Triangular PLA Structures under Symmetric and Asymmetric Bending |
| title_fullStr | On the Behavior of Honeycomb, Grid and Triangular PLA Structures under Symmetric and Asymmetric Bending |
| title_full_unstemmed | On the Behavior of Honeycomb, Grid and Triangular PLA Structures under Symmetric and Asymmetric Bending |
| title_short | On the Behavior of Honeycomb, Grid and Triangular PLA Structures under Symmetric and Asymmetric Bending |
| title_sort | on the behavior of honeycomb grid and triangular pla structures under symmetric and asymmetric bending |
| topic | additive manufacturing fused filament fabrication (FFF) polylactic acid (PLA) honeycomb grid triangular |
| url | https://www.mdpi.com/2072-666X/14/1/120 |
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