In-plane elastic moduli and plastic collapse strength of regular hexagonal honeycombs with dual imperfections

Mei Yi Yang, Jong Shin Huang, Chan Pang Sam

研究成果: Article同行評審

11 引文 斯高帕斯(Scopus)

摘要

The in-plane elastic modulus, Poisson's ratio and plastic collapse strength of regular hexagonal honeycombs with dual imperfections of non-straight and variable-thickness cell edges were theoretically derived from a model of curved cell edges with Plateau borders. Finite element analyses (FEA) on the stiffness and strength of regular hexagonal honeycombs with dual imperfections were also performed and then compared to the theoretical modeling. Both analytical and numerical results indicate that the in-plane elastic moduli and plastic collapse strength of regular hexagonal honeycombs with dual imperfections depend on their relative density, the solid distribution in cell edges and the curvature of cell edges. Meanwhile, the effects of dual imperfections on the in-plane elastic moduli and plastic collapse strength of regular hexagonal honeycombs are more drastic as compared to those of each single imperfection. Also, it is found that the normalized in-plane elastic modulus and plastic collapse strength of regular hexagonal honeycombs with dual imperfections are approximately equal to the products of those with each single imperfection.

原文English
頁(從 - 到)43-54
頁數12
期刊International Journal of Mechanical Sciences
50
發行號1
DOIs
出版狀態Published - 2008 1月

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 一般材料科學
  • 凝聚態物理學
  • 材料力學
  • 機械工業

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