中国物理B ›› 2017, Vol. 26 ›› Issue (12): 126201-126201.doi: 10.1088/1674-1056/26/12/126201

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Negative linear compressibility of generic rotating rigid triangles

Xiao-Qin Zhou(周晓勤), Lei Zhang(张磊), Lu Yang(杨璐)   

  1. School of Mechanical Science and Engineering, Jilin University, Changchun 130022, China
  • 收稿日期:2017-03-17 修回日期:2017-08-31 出版日期:2017-12-05 发布日期:2017-12-05
  • 通讯作者: Xiao-Qin Zhou E-mail:xqzhou@jlu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 51475208).

Negative linear compressibility of generic rotating rigid triangles

Xiao-Qin Zhou(周晓勤), Lei Zhang(张磊), Lu Yang(杨璐)   

  1. School of Mechanical Science and Engineering, Jilin University, Changchun 130022, China
  • Received:2017-03-17 Revised:2017-08-31 Online:2017-12-05 Published:2017-12-05
  • Contact: Xiao-Qin Zhou E-mail:xqzhou@jlu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 51475208).

摘要: The compressibility properties of systems consisting of generic rotating rigid triangles are analyzed and discussed. It is shown that these systems which are usually associated with auxeticity can exhibit strongly anisotropic properties for certain conformations, which may give rise to the anomalous property of negative linear compressibility (NLC), that is, the system with particular geometry will expand along one direction when loaded hydrostatically. It is also shown that through carefully choosing the geometric features (i.e. the dimensions and the alignment of the rotating triangles as well as the angles between them) and the direction along which the linear compressibility is measured, one may control the magnitude and range of the NLC. All this provides a novel but effective method of manufacturing the systems which can be tailored to achieve particular values of NLC to fit particular practical applications.

关键词: negative linear compressibility, rotating rigid triangles, analytical methods, microstructure

Abstract: The compressibility properties of systems consisting of generic rotating rigid triangles are analyzed and discussed. It is shown that these systems which are usually associated with auxeticity can exhibit strongly anisotropic properties for certain conformations, which may give rise to the anomalous property of negative linear compressibility (NLC), that is, the system with particular geometry will expand along one direction when loaded hydrostatically. It is also shown that through carefully choosing the geometric features (i.e. the dimensions and the alignment of the rotating triangles as well as the angles between them) and the direction along which the linear compressibility is measured, one may control the magnitude and range of the NLC. All this provides a novel but effective method of manufacturing the systems which can be tailored to achieve particular values of NLC to fit particular practical applications.

Key words: negative linear compressibility, rotating rigid triangles, analytical methods, microstructure

中图分类号:  (Mechanical properties of solids)

  • 62.20.-x
61.50.Ah (Theory of crystal structure, crystal symmetry; calculations and modeling) 81.05.Zx (New materials: theory, design, and fabrication)