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Title: A Fabrication Strategy for Reconfigurable Millimeter–Scale Metamaterials

Journal Article · · Advanced Functional Materials
 [1];  [2];  [3];  [4];  [5];  [6];  [4]; ORCiD logo [7]
  1. Columbia Univ., New York, NY (United States)
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  3. AMOLF, Amsterdam (Netherlands)
  4. Harvard Univ., Cambridge, MA (United States)
  5. Harvard Univ., Cambridge, MA (United States); Univ. of Massachusetts, Lowell, MA (United States)
  6. Univ. of Colorado, Boulder, CO (United States)
  7. AMOLF, Amsterdam (Netherlands); Eindhoven Univ. of Technology (Netherlands)

Rather than depending on material composition to primarily dictate performance metrics, metamaterials can leverage geometry to achieve specific properties of interest. For example, reconfigurable metamaterials have enabled programmable shape transformations, tunable mechanical properties, and energy absorption. While several methods exist to fabricate such structures, they often place severe restrictions on manufacturing materials, or require significant manual assembly. Moreover, these arrays are typically composed of unit cells that are either macro–scale or micro–scale in dimension. Here, the fabrication gap is bridged, and laminate manufacturing is used to develop a method for designing reconfigurable metamaterials at the millimeter–scale, that is compatible with a wide range of materials, and that requires minimal manual assembly. In addition to showing the versatility of this fabrication method, how the use of laminate manufacturing affects the behavior of these multi–component arrays is also characterized. To this end, a numerical model that captures the deformations exhibited by the structures is developed, and an analytic model that predicts the strain of the structure under compressive stress is built. Overall, this approach can be leveraged to develop millimeter–scale metamaterials for applications that require reconfigurable materials, such as in the design of tunable acoustics, photonic waveguides, and electromagnetic devices.

Research Organization:
Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0014664
OSTI ID:
1981336
Journal Information:
Advanced Functional Materials, Journal Name: Advanced Functional Materials Journal Issue: 46 Vol. 31; ISSN 1616-301X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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