Tensegrity cell mechanical metamaterial with metal rubber

Qicheng Zhang; Dayi Zhang; Yousef Dobah; Fabrizio Scarpa; Fernando Fraternali; Robert Skelton

doi:10.1063/1.5040850

Tensegrity cell mechanical metamaterial with metal rubber

Qicheng Zhang, Dayi Zhang^*, Yousef Dobah, Fabrizio Scarpa, Fernando Fraternali, Robert Skelton

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

We present here a design of the unit cell of a mechanical metamaterial based on the use of a tensegrity structural configuration with a metal rubber. Tensegrity combines the use of compression and tension-only elements, and allows the creation of structures with high rigidity per unit mass. Metal rubber is a multiscale porous metal material with high energy absorption and vibration damping capabilities under compressive load. The combination of the two structural and material concepts gives rise to a mechanical metamaterial with increased energy absorption and tuneable nonlinearity under quasi-static, vibration, and impact loading. We develop prototypes, models, and perform tests under static and dynamic loading conditions to assess the performance of this mechanical metamaterial.

Original language	English
Article number	031906
Number of pages	5
Journal	Applied Physics Letters
Volume	113
Issue number	3
Early online date	16 Jul 2018
DOIs	https://doi.org/10.1063/1.5040850
Publication status	Published - 17 Jul 2018

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10.1063/1.5040850

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abstract = "We present here a design of the unit cell of a mechanical metamaterial based on the use of a tensegrity structural configuration with a metal rubber. Tensegrity combines the use of compression and tension-only elements, and allows the creation of structures with high rigidity per unit mass. Metal rubber is a multiscale porous metal material with high energy absorption and vibration damping capabilities under compressive load. The combination of the two structural and material concepts gives rise to a mechanical metamaterial with increased energy absorption and tuneable nonlinearity under quasi-static, vibration, and impact loading. We develop prototypes, models, and perform tests under static and dynamic loading conditions to assess the performance of this mechanical metamaterial.",

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AU - Dobah, Yousef

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AU - Skelton, Robert

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