Modeling and Testing of Flexible Structures with Selected Planar Patterns Used in Biomedical Applications
Flexible structures (FS) are thin shells with a pattern of holes. The stiffness of the structure in the normal direction is reduced by the shape of gaps rather than by the choice of the material based on mechanical properties such as Young’s modulus. This paper presents virtual prototyping of 3D pri...
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MDPI AG
2020-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/1/140 |
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| author | Pavel Marsalek Martin Sotola David Rybansky Vojtech Repa Radim Halama Martin Fusek Jiri Prokop |
| author_facet | Pavel Marsalek Martin Sotola David Rybansky Vojtech Repa Radim Halama Martin Fusek Jiri Prokop |
| author_sort | Pavel Marsalek |
| collection | DOAJ |
| description | Flexible structures (FS) are thin shells with a pattern of holes. The stiffness of the structure in the normal direction is reduced by the shape of gaps rather than by the choice of the material based on mechanical properties such as Young’s modulus. This paper presents virtual prototyping of 3D printed flexible structures with selected planar patterns using laboratory testing and computer modeling. The objective of this work is to develop a non-linear computational model evaluating the structure’s stiffness and its experimental verification; in addition, we aimed to identify the best of the proposed patterns with respect to its stiffness: load-bearing capacity ratio. Following validation, the validated computational model is used for a parametric study of selected patterns. Nylon—Polyamide 12—was chosen for the purposes of this study as an appropriate flexible material suitable for 3D printing. At the end of the work, a computational model of the selected structure with modeling of load-bearing capacity is presented. The obtained results can be used in the design of external biomedical applications such as orthoses, prostheses, cranial remoulding helmets padding, or a new type of adaptive cushions. This paper is an extension of the conference paper: “Modeling and Testing of 3D Printed Flexible Structures with Three-pointed Star Pattern Used in Biomedical Applications” by authors Repa et al. |
| first_indexed | 2024-03-10T13:38:54Z |
| format | Article |
| id | doaj.art-944ed03f0e7843c388bb58cb0fb4f1bf |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T13:38:54Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-944ed03f0e7843c388bb58cb0fb4f1bf2023-11-21T03:13:18ZengMDPI AGMaterials1996-19442020-12-0114114010.3390/ma14010140Modeling and Testing of Flexible Structures with Selected Planar Patterns Used in Biomedical ApplicationsPavel Marsalek0Martin Sotola1David Rybansky2Vojtech Repa3Radim Halama4Martin Fusek5Jiri Prokop6Deparment of Applied Mechanics, Faculty of Mechanical Engineering, VŠB—Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicDeparment of Applied Mechanics, Faculty of Mechanical Engineering, VŠB—Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicDeparment of Applied Mechanics, Faculty of Mechanical Engineering, VŠB—Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicDeparment of Applied Mechanics, Faculty of Mechanical Engineering, VŠB—Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicDeparment of Applied Mechanics, Faculty of Mechanical Engineering, VŠB—Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicDeparment of Applied Mechanics, Faculty of Mechanical Engineering, VŠB—Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech RepublicDepartment of Surgical Studies, Faculty of Medicine, University of Ostrava, Dvorakova 7, 701 03 Ostrava, Czech RepublicFlexible structures (FS) are thin shells with a pattern of holes. The stiffness of the structure in the normal direction is reduced by the shape of gaps rather than by the choice of the material based on mechanical properties such as Young’s modulus. This paper presents virtual prototyping of 3D printed flexible structures with selected planar patterns using laboratory testing and computer modeling. The objective of this work is to develop a non-linear computational model evaluating the structure’s stiffness and its experimental verification; in addition, we aimed to identify the best of the proposed patterns with respect to its stiffness: load-bearing capacity ratio. Following validation, the validated computational model is used for a parametric study of selected patterns. Nylon—Polyamide 12—was chosen for the purposes of this study as an appropriate flexible material suitable for 3D printing. At the end of the work, a computational model of the selected structure with modeling of load-bearing capacity is presented. The obtained results can be used in the design of external biomedical applications such as orthoses, prostheses, cranial remoulding helmets padding, or a new type of adaptive cushions. This paper is an extension of the conference paper: “Modeling and Testing of 3D Printed Flexible Structures with Three-pointed Star Pattern Used in Biomedical Applications” by authors Repa et al.https://www.mdpi.com/1996-1944/14/1/140wearableflexiblestructurestiffnessbiomedicalmechanics |
| spellingShingle | Pavel Marsalek Martin Sotola David Rybansky Vojtech Repa Radim Halama Martin Fusek Jiri Prokop Modeling and Testing of Flexible Structures with Selected Planar Patterns Used in Biomedical Applications Materials wearable flexible structure stiffness biomedical mechanics |
| title | Modeling and Testing of Flexible Structures with Selected Planar Patterns Used in Biomedical Applications |
| title_full | Modeling and Testing of Flexible Structures with Selected Planar Patterns Used in Biomedical Applications |
| title_fullStr | Modeling and Testing of Flexible Structures with Selected Planar Patterns Used in Biomedical Applications |
| title_full_unstemmed | Modeling and Testing of Flexible Structures with Selected Planar Patterns Used in Biomedical Applications |
| title_short | Modeling and Testing of Flexible Structures with Selected Planar Patterns Used in Biomedical Applications |
| title_sort | modeling and testing of flexible structures with selected planar patterns used in biomedical applications |
| topic | wearable flexible structure stiffness biomedical mechanics |
| url | https://www.mdpi.com/1996-1944/14/1/140 |
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