A Passive Thermal Switch with Kirigami-Inspired Mesostructures

被引：27
作者：
Heo, Hyeonu [2 ]
Li, Shouhang [1 ]
Bao, Hua [1 ]
Ju, Jaehyung [1 ]
机构：
[1] Shanghai Jiao Tong Univ, UM SJTU Joint Inst, 800 Dongchuan Rd, Shanghai 200240, Peoples R China
[2] Univ North Texas, Dept Phys, POB 311427, Denton, TX 76203 USA
来源：
ADVANCED ENGINEERING MATERIALS | 2019年 / 21卷 / 06期
关键词：
architected materials; heat transfer; Kirigami structures; thermal management; HEAT SWITCH; DESIGN;
D O I：
10.1002/adem.201900225
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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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页数：9
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