Smart Metamaterial Based on the Simplex Tensegrity Pattern
Anna Al Sabouni-Zawadzka , Wojciech Jerzy Gilewski
AbstractIn the present paper, a novel cellular metamaterial that was based on a tensegrity pattern is presented. The material is constructed from supercells, each of which consists of eight 4-strut simplex modules. The proposed metamaterial exhibits some unusual properties, which are typical for smart structures. It is possible to control its mechanical characteristics by adjusting the level of self-stress or by changing the properties of structural members. A continuum model is used to identify the qualitative properties of the considered metamaterial, and to estimate how the applied self-stress and the characteristics of cables and struts affect the whole structure. The performed analyses proved that the proposed structure can be regarded as a smart metamaterial with orthotropic properties. One of its most important features are unique values of Poisson’s ratio, which can be either positive or negative, depending on the applied control parameters. Moreover, all of the mechanical characteristics of the proposed metamaterial are prone to structural control.
|Journal series||Materials, ISSN 1996-1944, (A 35 pkt)|
|Publication size in sheets||0.65|
|Keywords in English||metamaterial; smart material; smart structure; tensegrity|
|Score|| = 35.0, 11-03-2019, ArticleFromJournal|
= 35.0, 11-03-2019, ArticleFromJournal
|Publication indicators||= 2; : 2017 = 1.285; : 2017 = 2.467 (2) - 2017=3.325 (5)|
|Citation count*||8 (2019-08-15)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.