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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...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9865300/ https://www.ncbi.nlm.nih.gov/pubmed/36677181 http://dx.doi.org/10.3390/mi14010120 |
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author | Cojocaru, Vasile Frunzaverde, Doina Miclosina, Calin-Octavian |
author_facet | Cojocaru, Vasile Frunzaverde, Doina Miclosina, Calin-Octavian |
author_sort | Cojocaru, Vasile |
collection | PubMed |
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 Y and Z 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. |
format | Online Article Text |
id | pubmed-9865300 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-98653002023-01-22 On the Behavior of Honeycomb, Grid and Triangular PLA Structures under Symmetric and Asymmetric Bending Cojocaru, Vasile Frunzaverde, Doina Miclosina, Calin-Octavian Micromachines (Basel) Article 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 Y and Z 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. MDPI 2022-12-31 /pmc/articles/PMC9865300/ /pubmed/36677181 http://dx.doi.org/10.3390/mi14010120 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Cojocaru, Vasile Frunzaverde, Doina Miclosina, Calin-Octavian On the Behavior of Honeycomb, Grid and Triangular PLA Structures under Symmetric and Asymmetric Bending |
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 | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9865300/ https://www.ncbi.nlm.nih.gov/pubmed/36677181 http://dx.doi.org/10.3390/mi14010120 |
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