Thermomechanical response of metallic sandwich tubes with prismatic cores considering active cooling

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• 作者：Kai Zhang (1)
  Zichen Deng (1)
  Huajiang Ouyang (2)
  Jiaxi Zhou (3)
  Bo Wang (1)
  
• 关键词：Sandwich tube ; Effective thermal conductivity ; Active cooling ; Transient temperature ; Thermal response
• 刊名：Archive of Applied Mechanics (Ingenieur Archiv)
• 出版年：2014
• 出版时间：August 2014
• 年：2014
• 卷：84
• 期：8
• 页码：1145-1164
• 全文大小：2,949 KB
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• 作者单位：Kai Zhang (1)
  Zichen Deng (1)
  Huajiang Ouyang (2)
  Jiaxi Zhou (3)
  Bo Wang (1)
  
  1. School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, 81 mailbox, Chang鈥檃n Campus, Xi鈥檃n, 710072, China
  2. School of Engineering, University of Liverpool, Liverpool, L69 3GH, UK
  3. College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, China
  
• ISSN：1432-0681

文摘

In this paper, the transient temperature distribution and the thermomechanical response of sandwich tubes with prismatic cores are analyzed considering active cooling. The effective thermal conductivities of prismatic cores with active cooling are derived. By using the effective thermal conductivities, the transient temperature fields of the tubes are predicted and are found to be very close to the results of finite element simulations, which confirms the correctness of the effective thermal conductivity. Based on the high-order sandwich shell theory, the thermal structural responses of sandwich structures are studied and compared with the results of finite element simulations. The reduction of the thermal structural responses as a result of active cooling is studied to demonstrate the advantages of prismatic cellular materials. The design of replacing the solid metal with cellular materials which has the capability of active cooling can reduce the temperature and the thermal structural response of the structure.