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Smart Metamaterial Based on the Simplex Tensegrity Pattern.

Anna Al Sabouni-Zawadzka1, Wojciech Gilewski2

  • 1Faculty of Civil Engineering, Warsaw University of Technology, 00-661 Warsaw, Poland. a.sabouni@il.pw.edu.pl.

Materials (Basel, Switzerland)
|April 28, 2018
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Summary
This summary is machine-generated.

This study introduces a novel cellular metamaterial based on tensegrity structures. This smart material offers controllable mechanical properties, including unique positive or negative Poisson

Keywords:
metamaterialsmart materialsmart structuretensegrity

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Area of Science:

  • Materials Science and Engineering
  • Mechanical Engineering
  • Structural Mechanics

Background:

  • Tensegrity structures offer unique mechanical properties.
  • Cellular metamaterials are engineered materials with properties not found in naturally occurring materials.
  • Smart structures possess tunable characteristics.

Purpose of the Study:

  • To present a novel cellular metamaterial based on a tensegrity pattern.
  • To investigate the tunable mechanical properties of this metamaterial.
  • To analyze the influence of self-stress and structural member properties on the metamaterial's behavior.

Main Methods:

  • Construction of the metamaterial from supercells composed of 4-strut simplex modules.
  • Utilizing a continuum model for qualitative analysis.
  • Estimating the effects of self-stress and component properties on the overall structure.

Main Results:

  • The proposed metamaterial exhibits characteristics of smart structures.
  • Mechanical properties are controllable via self-stress adjustment and member property modification.
  • The metamaterial demonstrates orthotropic properties and unique Poisson's ratios (positive or negative).

Conclusions:

  • The developed tensegrity-based cellular metamaterial functions as a smart material.
  • Its mechanical characteristics, including Poisson's ratio, are structurally controllable.
  • This research opens avenues for designing advanced smart materials with tailored mechanical responses.