Origami Metamaterials for Tunable Thermal Expansion

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  • Elisa Boatti
    John A. Paulson School of Engineering and Applied Science Harvard University Cambridge MA 02138 USA
  • Nikolaos Vasios
    John A. Paulson School of Engineering and Applied Science Harvard University Cambridge MA 02138 USA
  • Katia Bertoldi
    Kavli Institute Harvard University Cambridge MA 02138 USA

書誌事項

公開日
2017-05-03
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#am
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/adma.201700360
公開者
Wiley

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説明

<jats:p>Materials with engineered thermal expansion, capable of achieving targeted area/volume changes in response to variations in temperature, are important for a number of aerospace, optical, energy, and microelectronic applications. While most of the proposed structures with engineered coefficient of thermal expansion consist of bi‐material 2D or 3D lattices, here it is shown that origami metamaterials also provide a platform for the design of systems with a wide range of thermal expansion coefficients. Experiments and simulations are combined to demonstrate that by tuning the geometrical parameters of the origami structure and the arrangement of plates and creases, an extremely broad range of thermal expansion coefficients can be obtained. Differently from all previously reported systems, the proposed structure is tunable in situ and nonporous.</jats:p>

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