Geometric effects on micropolar elastic honeycomb structure with negative Poisson's ratio using the finite element method

D. U. Yang, S. Lee, F. Y. Huang

Research output: Contribution to journalArticlepeer-review

53 Scopus citations

Abstract

A two-dimensional triangular finite element formulation including an extra degree of freedom was derived on the basis of Eringen's micropolar elasticity theory. The linear triangular element and a corresponding computer program were developed to investigate the relation between the Poisson's ratio of re-entrant honeycomb structure using various structural geometric parameters. According to our numerical results, the honeycomb structure can exhibit a negative Poisson's ratio with the appropriate re-entrant angle. We also found that the Poisson's ratio values varied when changing the honeycomb structure cell rib length and width.

Original languageEnglish
Pages (from-to)187-205
Number of pages19
JournalFinite Elements in Analysis and Design
Volume39
Issue number3
DOIs
StatePublished - Jan 2003

Keywords

  • Finite element
  • Honeycomb
  • Micropolar
  • Poisson's ratio

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