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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Gutmann, Florian
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Topics
Publications (11/11 displayed)
- 2024Acoustic Nondestructive Characterization of Metal Pantographs for Material and Defect Identificationcitations
- 2024Simulation-based approach to estimate influencing factors on acoustic resonance spectra of additively manufactured mechanical metamaterials
- 2023Miniaturization of non-assembly metallic pin-joints by LPBF-based additive manufacturing as perfect pivots for pantographic metamaterialscitations
- 2023Manufacturing size effect on the structural and mechanical properties of additively manufactured Ti-6Al-4V microbeamscitations
- 2022Design and Manufacturing of a Metal-Based Mechanical Metamaterial with Tunable Damping Propertiescitations
- 20222D numerical simulation of auxetic metamaterials based on force and deformation consistencycitations
- 2021Strain rate sensitivity of the additive manufacturing material Scalmalloy®citations
- 2021Strain Rate Sensitivity of the Additive Manufacturing Material Scalmalloy®citations
- 2021Strain rate sensitivity of the aluminium-magnesium-scandium alloy - Scalmalloy®
- 2021Strain rate sensitivity of the additive manufacturing material Scalmalloy [Registered Trade Mark]citations
- 2020Properties of a superelastic NiTi shape memory alloy using laser powder bed fusion and adaptive scanning strategiescitations
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article
Design and Manufacturing of a Metal-Based Mechanical Metamaterial with Tunable Damping Properties
Abstract
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. ; 15 ; 16