四叶草仿生结构的低膨胀超材料技术研究

IF 1.9 3区 工程技术 Q3 ENGINEERING, MANUFACTURING
Meng Wang, Xin Shen, Yipeng Wu, Beibei Sun
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引用次数: 0

摘要

一种具有超低膨胀特性的新型超材料结构已经研制成功,其单向热膨胀系数小于 1 × 10-7/°C。超材料结构是通过将材料技术与机械设计技术相结合,人为设计出的一种新型复合材料,可实现传统材料无法达到的性能。利用超材料设计方法,选择两种热膨胀系数相差较大的材料,设计并实现负膨胀单元结构。将设计的负膨胀结构与传统的正膨胀结构相结合,通过两者热变形特性的相互补偿,最终实现超低膨胀特性。通过材料建模和仿真分析,验证了新型超材料结构的超低热膨胀特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Research on low-expansion metamaterial technique of four-leaf clover bionic structure
A new metamaterial structure has been developed with ultra-low expansion characteristics, featuring a unidirectional thermal expansion coefficient of less than 1 × 10−7/°C. Metamaterial structure is a new type of composite material designed artificially, by combining material technology with mechanical design technology, to achieve properties that cannot be achieved by conventional materials. Using the metamaterial design method, two materials with a large difference in thermal expansion coefficient are selected to design and realize the negative expansion unit structure. Combining the designed negative expansion structure and the conventional structure with positive expansion, the ultra-low expansion characteristics are finally realized through the mutual compensation of the thermal deformation properties of the two. The ultra-low thermal expansion characteristics of the novel metamaterial structures are verified through material modeling and simulation analysis.
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来源期刊
CiteScore
5.10
自引率
30.80%
发文量
167
审稿时长
5.1 months
期刊介绍: Manufacturing industries throughout the world are changing very rapidly. New concepts and methods are being developed and exploited to enable efficient and effective manufacturing. Existing manufacturing processes are being improved to meet the requirements of lean and agile manufacturing. The aim of the Journal of Engineering Manufacture is to provide a focus for these developments in engineering manufacture by publishing original papers and review papers covering technological and scientific research, developments and management implementation in manufacturing. This journal is also peer reviewed. Contributions are welcomed in the broad areas of manufacturing processes, manufacturing technology and factory automation, digital manufacturing, design and manufacturing systems including management relevant to engineering manufacture. Of particular interest at the present time would be papers concerned with digital manufacturing, metrology enabled manufacturing, smart factory, additive manufacturing and composites as well as specialist manufacturing fields like nanotechnology, sustainable & clean manufacturing and bio-manufacturing. Articles may be Research Papers, Reviews, Technical Notes, or Short Communications.
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