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A Passive Thermal Switch with Kirigami‐Inspired Mesostructures
Author(s) -
Heo Hyeonu,
Li Shouhang,
Bao Hua,
Ju Jaehyung
Publication year - 2019
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201900225
Subject(s) - metamaterial , materials science , thermal , finite element method , hinge , mechanical engineering , thermal resistance , work (physics) , composite material , structural engineering , optoelectronics , engineering , thermodynamics , physics
The objective of this work is to design a passive thermal switch with Kirigami‐inspired architected materials composed of bilayer hinges and to analyze thermomechanical and thermal performance at the ON/OFF states based on a composition of materials and geometry of metamaterials. Analytical models are constructed to determine the thermal deformation and heat transport of the metamaterial, followed by finite element‐based simulations. A two‐step design approach − i) selection of multi‐materials and ii) geometric modification of mesostructures provides a robust method for the design of a passive thermal switch with Kirigami‐inspired metamaterials. The mesostructures designed have potential as a passive thermal switch enabling to engineer a large thermal deformation, a small thermal resistance, and a sizable thermal switch ratio. With a systematic approach, this work demonstrates that Kirigami structures with multi‐materials can be potentially used for a tool of thermal transport.