A multi-layer active elastic metamaterial with tuneable and simultaneously negative mass and stiffness
- Submitting institution
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The University of Sheffield
- Unit of assessment
- 12 - Engineering
- Output identifier
- 2641
- Type
- D - Journal article
- DOI
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10.1088/0964-1726/23/7/075020
- Title of journal
- Smart Materials and Structures
- Article number
- 075020
- First page
- -
- Volume
- 23
- Issue
- 7
- ISSN
- 0964-1726
- Open access status
- Out of scope for open access requirements
- Month of publication
- June
- Year of publication
- 2014
- URL
-
-
- Supplementary information
-
-
- Request cross-referral to
- -
- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
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1
- Research group(s)
-
-
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- The first experimental demonstration of an artificially structured elastic material (i.e. metamaterial) is reported, in which digital feedback control is used to create a response in which both the density and stiffness are effectively negative across a desired frequency band. Unlike previous designs, the use of digital feedback control means that these parameters are tuneable on-demand, so that the metamaterial can respond to changes in environment or user requirements. This makes them applicable to a number of sectors, for example in novel applications “such as earthquake cloaks”, as noted by one reviewer of the paper.
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -