Design and Manufacturing of a Metal-Based Mechanical Metamaterial with Tunable Damping Properties
In the present work, a novel concept for metallic metamaterials is presented, motivated by the creation of next-generation reversible damping systems that can be exposed to various environmental conditions. For this purpose, a unit cell is designed that consists of a parallel arrangement of a spring...
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MDPI AG
2022-08-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/16/5644 |
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| author | Konstantin Kappe Jan P. Wahl Florian Gutmann Silviya M. Boyadzhieva Klaus Hoschke Sarah C. L. Fischer |
| author_facet | Konstantin Kappe Jan P. Wahl Florian Gutmann Silviya M. Boyadzhieva Klaus Hoschke Sarah C. L. Fischer |
| author_sort | Konstantin Kappe |
| collection | DOAJ |
| description | In the present work, a novel concept for metallic metamaterials is presented, motivated by the creation of next-generation reversible damping systems that can be exposed to various environmental conditions. For this purpose, a unit cell is designed that consists of a parallel arrangement of a spring and snap-fit mechanism. The combination of the two concepts enables damping properties one order of magnitude higher than those of the constituting metal material. The spring element stores elastic energy while the snap-fit allows to absorb and dissipate energy and to reach a second stable state. Different configurations of single unit cells and connected cell assemblies are manufactured by laser powder bed fusion using Ti6Al4V powder. The dimensioning is supported by finite element modelling and the characteristic properties of the unit cells are studied in cyclic compression experiments. The metamaterial exhibits damping properties in the range of polymeric foams while retaining its higher environmental resistance. By variation of selected geometrical parameters, either bistable or self-recovering characteristics are achieved. Therefore, a metamaterial as an assembly of the described unit cells could offer a high potential as a structural element in future damping or energy storage systems operating at elevated temperatures and extreme environmental conditions. |
| first_indexed | 2024-03-09T04:10:06Z |
| format | Article |
| id | doaj.art-dda758103f584652985b22b321529635 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T04:10:06Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-dda758103f584652985b22b3215296352023-12-03T14:01:47ZengMDPI AGMaterials1996-19442022-08-011516564410.3390/ma15165644Design and Manufacturing of a Metal-Based Mechanical Metamaterial with Tunable Damping PropertiesKonstantin Kappe0Jan P. Wahl1Florian Gutmann2Silviya M. Boyadzhieva3Klaus Hoschke4Sarah C. L. Fischer5Fraunhofer Institute for High-Speed Dynamics (EMI), Ernst-Zermelo-Str. 4, 79104 Freiburg, GermanyFraunhofer Institute for High-Speed Dynamics (EMI), Ernst-Zermelo-Str. 4, 79104 Freiburg, GermanyFraunhofer Institute for High-Speed Dynamics (EMI), Ernst-Zermelo-Str. 4, 79104 Freiburg, GermanyFraunhofer Institute for Nondestructive Testing (IZFP), Campus E3 1, 66123 Saarbrücken, GermanyFraunhofer Institute for High-Speed Dynamics (EMI), Ernst-Zermelo-Str. 4, 79104 Freiburg, GermanyFraunhofer Institute for Nondestructive Testing (IZFP), Campus E3 1, 66123 Saarbrücken, GermanyIn the present work, a novel concept for metallic metamaterials is presented, motivated by the creation of next-generation reversible damping systems that can be exposed to various environmental conditions. For this purpose, a unit cell is designed that consists of a parallel arrangement of a spring and snap-fit mechanism. The combination of the two concepts enables damping properties one order of magnitude higher than those of the constituting metal material. The spring element stores elastic energy while the snap-fit allows to absorb and dissipate energy and to reach a second stable state. Different configurations of single unit cells and connected cell assemblies are manufactured by laser powder bed fusion using Ti6Al4V powder. The dimensioning is supported by finite element modelling and the characteristic properties of the unit cells are studied in cyclic compression experiments. The metamaterial exhibits damping properties in the range of polymeric foams while retaining its higher environmental resistance. By variation of selected geometrical parameters, either bistable or self-recovering characteristics are achieved. Therefore, a metamaterial as an assembly of the described unit cells could offer a high potential as a structural element in future damping or energy storage systems operating at elevated temperatures and extreme environmental conditions.https://www.mdpi.com/1996-1944/15/16/5644energy dissipationenergy absorptionbistabilitymetamaterialsadditive manufacturingdamping |
| spellingShingle | Konstantin Kappe Jan P. Wahl Florian Gutmann Silviya M. Boyadzhieva Klaus Hoschke Sarah C. L. Fischer Design and Manufacturing of a Metal-Based Mechanical Metamaterial with Tunable Damping Properties Materials energy dissipation energy absorption bistability metamaterials additive manufacturing damping |
| title | Design and Manufacturing of a Metal-Based Mechanical Metamaterial with Tunable Damping Properties |
| title_full | Design and Manufacturing of a Metal-Based Mechanical Metamaterial with Tunable Damping Properties |
| title_fullStr | Design and Manufacturing of a Metal-Based Mechanical Metamaterial with Tunable Damping Properties |
| title_full_unstemmed | Design and Manufacturing of a Metal-Based Mechanical Metamaterial with Tunable Damping Properties |
| title_short | Design and Manufacturing of a Metal-Based Mechanical Metamaterial with Tunable Damping Properties |
| title_sort | design and manufacturing of a metal based mechanical metamaterial with tunable damping properties |
| topic | energy dissipation energy absorption bistability metamaterials additive manufacturing damping |
| url | https://www.mdpi.com/1996-1944/15/16/5644 |
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