Scalable 3D printing for topological mechanical metamaterials
| العنوان: | Scalable 3D printing for topological mechanical metamaterials |
|---|---|
| المؤلفون: | Achilles Bergne, Guido Baardink, Evripides G. Loukaides, Anton Souslov |
| المصدر: | Bergne, A, Baardink, G, Loukaides, E G & Souslov, A 2022, ' Scalable 3D printing for topological mechanical metamaterials ', Extreme Mechanics Letters, vol. 57, 101911 . https://doi.org/10.1016/j.eml.2022.101911 |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Topological softness, Ball-and-spring networks, Mechanics of Materials, Additive manufacturing, Mechanical Engineering, Soft Condensed Matter (cond-mat.soft), FOS: Physical sciences, Chemical Engineering (miscellaneous), Bioengineering, Condensed Matter - Soft Condensed Matter, Engineering (miscellaneous) |
| الوصف: | Mechanical metamaterials are structures designed to exhibit an exotic response, such as topological soft modes at a surface. Here we explore single-material 3D prints of these topological structures by translating a ball-and-spring model into a physical prototype. By uniaxially compressing the 3D-printed solid having marginal rigidity, we observe that the surfaces are consistently softer than the bulk. However, we also find that either of two opposite surfaces can be the softest, in contrast to the topologically robust predictions of the linear model. Finite-element simulations allow us to bridge this gap. We explore how the printing geometry and deformation amplitude could affect surface softness. For small strains, we find qualitative agreement with the ball-and-spring model but, surprisingly, nonlinear deformations can select which side is softest. Our work contextualizes the predictions of topological mechanics for real 3D materials and their potential for cushioning applications. 11 pages, including 5 main figures and 2 supplementary figures. See https://youtu.be/4vA8DIyccLo for Supplementary Video |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ce54c0d6109f0cbbb642c5d1156dc37 https://orbit.dtu.dk/en/publications/f7e1fb9a-6826-49df-992f-4c8ffd850475 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....2ce54c0d6109f0cbbb642c5d1156dc37 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |