In-plane elastic constants and strengths of circular cell honeycombs

Ting Chun Lin, Ting Jung Chen, Jong Shin Huang

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

The in-plane elastic modulus, Poisson's ratio, brittle crushing strength and plastic yielding strength of honeycombs with hexagonally packed circular cells are analyzed theoretically. The resulting theoretical expressions are compared with the numerical results obtained from a series of finite element analyses for circular cell honeycombs with various relative densities, leading to a good correlation. It is also found that the in-plane mechanical properties of circular cell honeycombs are significantly affected by the ratio of cell-wall thickness to cell radius. Though the elastic constants along the two principal directions of circular cell honeycombs are the same, the brittle crushing strength and plastic yielding strength along the two principal directions are not identical. Furthermore, the in-plane mechanical properties of circular cell honeycombs are compared to those of regular hexagonal honeycombs with straight and uniform-thickness cell walls to evaluate their microstructural efficiency.

Original languageEnglish
Pages (from-to)1380-1386
Number of pages7
JournalComposites Science and Technology
Volume72
Issue number12
DOIs
Publication statusPublished - 2012 Jul 23

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Engineering(all)

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