计算力学学报2017，Vol.34Issue(4)：453-458,6.DOI:10.7511/jslx201704009
纤维增强复合材料热隐身斗篷设计
Thermal invisibility cloak design based on fiber reinforced composite
摘要
Abstract
Although the spatial variation of the material property required for achieving thermal invisibi-lity in the structure,i.e.an invisible cloak for heat flux,can be obtained through transformation thermo-dynamics,the design of the cloak is practically very difficult to be implemented due to the complexity in distribution and local extreme (infinite) in value of the required thermal conductivity of the material.Hence,it is of great engineering significance to explore effective ways to design invisibility cloak for heat by using conventional materials.In this paper,we proposed a way to design annular thermal invisibility cloak by using fiber reinforced composite.The required material property distribution (i.e.thermal conducti-vity) was obtained based on transformation thermodynamics first.Then,through composite microstructure design,the fiber layout (volume fraction and orientation) was determined to match with the required thermal conductivity distribution.Using silver as the reinforcement and air as the matrix,the fiber layout of the annular cloak was obtained,which was easy to be fabricated by ordinary materials.The simulation results showed almost perfect invisible cloak properties,thus validating the proposed design method.关键词
热隐身/隐身斗篷/复合材料/热变换动力学/优化设计Key words
thermal invisibility/invisible cloak/composite materials/transformation thermodynamics/design optimization分类
数理科学引用本文复制引用
刘立悦,刘书田..纤维增强复合材料热隐身斗篷设计[J].计算力学学报,2017,34(4):453-458,6.基金项目
国家自然科学基金(11332004) （11332004）
中航工业产学研合作创兴工程(CXY2013DLLG32)资助项目. （CXY2013DLLG32）
