Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6707492 | Composite Structures | 2014 | 22 Pages |
Abstract
Light weight structures with tailored mechanical properties have evolved beyond regular hexagonal/circular honeycomb topology. For applications which demand anisotropic mechanical properties, elliptical-celled structures offer interesting features. This paper characterizes the anisotropic in-plane elastic response of coated thin elliptical tubes in different array patterns viz. close-packed, diagonal and rectangular patterns under compression. This paper also extends earlier works on elliptical close-packed structure to a more general case of coated tubes. Theoretical framework using thin ring theory provides formulae in terms of geometric and material parameters. These are compared with a series of FE simulations using contact elements. The FE results are presented as graphs to aid in design.
Keywords
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Physical Sciences and Engineering
Engineering
Civil and Structural Engineering
Authors
Tejas P. Gotkhindi, K.R.Y. Simha,