Simple auxetic tubular structures

Xin Ren, Jianhu Shen, Hongqi Tian, Yi Min Xie

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Auxetic materials and structures have attracted significant interest because of their uncommon behaviour, i.e. they will shrink (expand) laterally under compression (tension). Auxetic tubular structures have been used as oesophageal stents. Inspired by the recent kirigami method and the pattern scale factor (PSF) adjustment method, we generated several tubular structures. The tensile auxetic performance of these tubes was investigated using validated finite element analysis (FEA) to explore their properties. The results demonstrated that the random cut method was unsuitable for generating auxetic tubular structures. Vertical and horizontal (VH) cut approach was suitable, but the change of the tubular diameter was lower than the tubular structures generated by the PSF adjustment method.

Original languageEnglish
Title of host publication8th Conference on Smart Structures and Materials, SMART 2017 and 6th International Conference on Smart Materials and Nanotechnology in Engineering, SMN 2017
EditorsAlfredo Guemes
PublisherInternational Center for Numerical Methods in Engineering
Pages502-510
Number of pages9
ISBN (Electronic)9788494690938
StatePublished - 2017
Externally publishedYes
Event8th ECCOMAS Thematic Conference on Smart Structures and Materials, SMART 2017 and 6th International Conference on Smart Materials and Nanotechnology in Engineering, SMN 2017 - Madrid, Spain
Duration: 5 Jun 20178 Jun 2017

Publication series

Name8th Conference on Smart Structures and Materials, SMART 2017 and 6th International Conference on Smart Materials and Nanotechnology in Engineering, SMN 2017
Volume2017-January

Conference

Conference8th ECCOMAS Thematic Conference on Smart Structures and Materials, SMART 2017 and 6th International Conference on Smart Materials and Nanotechnology in Engineering, SMN 2017
Country/TerritorySpain
CityMadrid
Period5/06/178/06/17

Keywords

  • Auxetic
  • Pattern scale factor (PSF)
  • Poisson's ratio
  • Random cut
  • Stent
  • Tube
  • Tubular structure

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