Study of walls’ influence on the mechanical properties of 3D printed onyx parts: Experimental, analytical and numerical investigations
The usage of additive manufacturing techniques has increased dramatically in recent years. Fabricated parts are no longer simple prototypes, but rather structural components whose mechanical characteristics must be understood before printing. One of the weaknesses of 3D printing is the high variabil...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-08-01
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| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023063958 |
| _version_ | 1797732836456792064 |
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| author | Daouda Nikiema Ndèye Awa Sène Pascale Balland Alain Sergent |
| author_facet | Daouda Nikiema Ndèye Awa Sène Pascale Balland Alain Sergent |
| author_sort | Daouda Nikiema |
| collection | DOAJ |
| description | The usage of additive manufacturing techniques has increased dramatically in recent years. Fabricated parts are no longer simple prototypes, but rather structural components whose mechanical characteristics must be understood before printing. One of the weaknesses of 3D printing is the high variability of dimensional, geometric, and mechanical properties, which is due to the combination of various printing parameters, including the number of walls, roofs, and floors, filling patterns, and printing layer thickness.This study aims to predict the mechanical properties of onyx printed parts as a function of the number of walls and a solid pattern through an analytical approach based on the rule of mixtures and numerical finite element simulation. The influence of the number of walls on the mechanical properties of onyx printed parts was characterised by uniaxial tensile tests. The results show that walls have a significant impact on the final mechanical properties of the parts. The study found that the higher the number of walls, the greater the mechanical properties of the parts. The rule of mixtures approach allowed us to predict the mechanical properties with good accuracy, with prediction errors observed ranging from 1% to 10% depending on the number of walls in the parts. The numerical simulation using finite elements was carried out using the properties of the walls and the solid pattern obtained from tensile testing, enabling a comparison between the experimental test and the rule of mixtures. The results show that the mechanical properties obtained by the rule of mixtures and numerical simulation are consistent with the physical tensile test. |
| first_indexed | 2024-03-12T12:20:17Z |
| format | Article |
| id | doaj.art-09d607b1ec8c469198faca589429a265 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-12T12:20:17Z |
| publishDate | 2023-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-09d607b1ec8c469198faca589429a2652023-08-30T05:53:58ZengElsevierHeliyon2405-84402023-08-0198e19187Study of walls’ influence on the mechanical properties of 3D printed onyx parts: Experimental, analytical and numerical investigationsDaouda Nikiema0Ndèye Awa Sène1Pascale Balland2Alain Sergent3Université Savoie Mont Blanc, SYMME, F-74000, Annecy, France; Corresponding author.Ecole Supérieure Polytechnique, Laboratoire Eau, Energie, Environnement et Procédés Industriels (LE3PI), Université Cheikh Anta Diop de Dakar, SenegalUniversité Savoie Mont Blanc, SYMME, F-74000, Annecy, FranceUniversité Savoie Mont Blanc, SYMME, F-74000, Annecy, FranceThe usage of additive manufacturing techniques has increased dramatically in recent years. Fabricated parts are no longer simple prototypes, but rather structural components whose mechanical characteristics must be understood before printing. One of the weaknesses of 3D printing is the high variability of dimensional, geometric, and mechanical properties, which is due to the combination of various printing parameters, including the number of walls, roofs, and floors, filling patterns, and printing layer thickness.This study aims to predict the mechanical properties of onyx printed parts as a function of the number of walls and a solid pattern through an analytical approach based on the rule of mixtures and numerical finite element simulation. The influence of the number of walls on the mechanical properties of onyx printed parts was characterised by uniaxial tensile tests. The results show that walls have a significant impact on the final mechanical properties of the parts. The study found that the higher the number of walls, the greater the mechanical properties of the parts. The rule of mixtures approach allowed us to predict the mechanical properties with good accuracy, with prediction errors observed ranging from 1% to 10% depending on the number of walls in the parts. The numerical simulation using finite elements was carried out using the properties of the walls and the solid pattern obtained from tensile testing, enabling a comparison between the experimental test and the rule of mixtures. The results show that the mechanical properties obtained by the rule of mixtures and numerical simulation are consistent with the physical tensile test.http://www.sciencedirect.com/science/article/pii/S24058440230639583D printingWalls effectMechanical propertiesTensile testRule of mixturesFinite element simulation |
| spellingShingle | Daouda Nikiema Ndèye Awa Sène Pascale Balland Alain Sergent Study of walls’ influence on the mechanical properties of 3D printed onyx parts: Experimental, analytical and numerical investigations Heliyon 3D printing Walls effect Mechanical properties Tensile test Rule of mixtures Finite element simulation |
| title | Study of walls’ influence on the mechanical properties of 3D printed onyx parts: Experimental, analytical and numerical investigations |
| title_full | Study of walls’ influence on the mechanical properties of 3D printed onyx parts: Experimental, analytical and numerical investigations |
| title_fullStr | Study of walls’ influence on the mechanical properties of 3D printed onyx parts: Experimental, analytical and numerical investigations |
| title_full_unstemmed | Study of walls’ influence on the mechanical properties of 3D printed onyx parts: Experimental, analytical and numerical investigations |
| title_short | Study of walls’ influence on the mechanical properties of 3D printed onyx parts: Experimental, analytical and numerical investigations |
| title_sort | study of walls influence on the mechanical properties of 3d printed onyx parts experimental analytical and numerical investigations |
| topic | 3D printing Walls effect Mechanical properties Tensile test Rule of mixtures Finite element simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023063958 |
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