Journal
ADVANCED ENGINEERING MATERIALS
Volume 21, Issue 6, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adem.201900225
Keywords
architected materials; heat transfer; Kirigami structures; thermal management
Categories
Funding
- Shanghai NSF [17ZR1414700]
- Research Incentive Program of Recruited Non-Chinese Foreign Faculty by Shanghai Jiao Tong University
- Startup fund of the University of Michigan - Shanghai Jiao Tong University (UM-SJTU) Joint Institute
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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.
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