Comparison of CAD and Voxel-Based Modelling Methodologies for the Mechanical Simulation of Extrusion-Based 3D Printed Scaffolds
Porous structures are of great importance in tissue engineering. Most scaffolds are 3D printed, but there is no single methodology to model these printed parts and to apply finite element analysis to estimate their mechanical behaviour. In this work, voxel-based and geometry-based modelling methodol...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-09-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/19/5670 |
| _version_ | 1797516043314266112 |
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| author | Gisela Vega Rubén Paz Andrew Gleadall Mario Monzón María Elena Alemán-Domínguez |
| author_facet | Gisela Vega Rubén Paz Andrew Gleadall Mario Monzón María Elena Alemán-Domínguez |
| author_sort | Gisela Vega |
| collection | DOAJ |
| description | Porous structures are of great importance in tissue engineering. Most scaffolds are 3D printed, but there is no single methodology to model these printed parts and to apply finite element analysis to estimate their mechanical behaviour. In this work, voxel-based and geometry-based modelling methodologies are defined and compared in terms of computational efficiency, dimensional accuracy, and mechanical behaviour prediction of printed parts. After comparing the volumes and dimensions of the models with the theoretical and experimental ones, they are more similar to the theoretical values because they do not take into account dimensional variations due to the printing temperature. This also affects the prediction of the mechanical behaviour, which is not accurate compared to reality, but it makes it possible to determine which geometry is stiffer. In terms of comparison of modelling methodologies, based on process efficiency, geometry-based modelling performs better for simple or larger parts, while voxel-based modelling is more advantageous for small and complex geometries. |
| first_indexed | 2024-03-10T06:56:44Z |
| format | Article |
| id | doaj.art-2f5104d9492f489ba464044ee6b3878b |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T06:56:44Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-2f5104d9492f489ba464044ee6b3878b2023-11-22T16:25:18ZengMDPI AGMaterials1996-19442021-09-011419567010.3390/ma14195670Comparison of CAD and Voxel-Based Modelling Methodologies for the Mechanical Simulation of Extrusion-Based 3D Printed ScaffoldsGisela Vega0Rubén Paz1Andrew Gleadall2Mario Monzón3María Elena Alemán-Domínguez4Mechanical Engineering Department, Campus de Tafira Baja, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas, SpainMechanical Engineering Department, Campus de Tafira Baja, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas, SpainWolfson School of Mechanical and Manufacturing Engineering, Loughborough University, Loughborough LE11 3TU, UKMechanical Engineering Department, Campus de Tafira Baja, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas, SpainMechanical Engineering Department, Campus de Tafira Baja, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas, SpainPorous structures are of great importance in tissue engineering. Most scaffolds are 3D printed, but there is no single methodology to model these printed parts and to apply finite element analysis to estimate their mechanical behaviour. In this work, voxel-based and geometry-based modelling methodologies are defined and compared in terms of computational efficiency, dimensional accuracy, and mechanical behaviour prediction of printed parts. After comparing the volumes and dimensions of the models with the theoretical and experimental ones, they are more similar to the theoretical values because they do not take into account dimensional variations due to the printing temperature. This also affects the prediction of the mechanical behaviour, which is not accurate compared to reality, but it makes it possible to determine which geometry is stiffer. In terms of comparison of modelling methodologies, based on process efficiency, geometry-based modelling performs better for simple or larger parts, while voxel-based modelling is more advantageous for small and complex geometries.https://www.mdpi.com/1996-1944/14/19/5670tissue engineeringscaffoldmaterial extrusion additive manufacturing3D geometry modellingfinite element analysismechanical properties |
| spellingShingle | Gisela Vega Rubén Paz Andrew Gleadall Mario Monzón María Elena Alemán-Domínguez Comparison of CAD and Voxel-Based Modelling Methodologies for the Mechanical Simulation of Extrusion-Based 3D Printed Scaffolds Materials tissue engineering scaffold material extrusion additive manufacturing 3D geometry modelling finite element analysis mechanical properties |
| title | Comparison of CAD and Voxel-Based Modelling Methodologies for the Mechanical Simulation of Extrusion-Based 3D Printed Scaffolds |
| title_full | Comparison of CAD and Voxel-Based Modelling Methodologies for the Mechanical Simulation of Extrusion-Based 3D Printed Scaffolds |
| title_fullStr | Comparison of CAD and Voxel-Based Modelling Methodologies for the Mechanical Simulation of Extrusion-Based 3D Printed Scaffolds |
| title_full_unstemmed | Comparison of CAD and Voxel-Based Modelling Methodologies for the Mechanical Simulation of Extrusion-Based 3D Printed Scaffolds |
| title_short | Comparison of CAD and Voxel-Based Modelling Methodologies for the Mechanical Simulation of Extrusion-Based 3D Printed Scaffolds |
| title_sort | comparison of cad and voxel based modelling methodologies for the mechanical simulation of extrusion based 3d printed scaffolds |
| topic | tissue engineering scaffold material extrusion additive manufacturing 3D geometry modelling finite element analysis mechanical properties |
| url | https://www.mdpi.com/1996-1944/14/19/5670 |
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