Computational approach in formulating mechanical characteristics of 3D star honeycomb auxetic structure

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Abstract

Auxetic materials exhibit a unique characteristic due to the altered microstructure. Different structures have been used to model thesematerials. This paper treats a development of finite element model and theoretical formulation of 3Dstar honeycomb structure of these materials. Various shape parameters of the structural cell were evaluated with respect to the basic mechanical properties of the cell. Finite element and analytical approach for various geometrical parameters were numerically used to formulate the characteristics of the material. The study aims at quantifying mechanical properties for any domain in which auxetic material is of interest for variations in geometrical parameters. It is evident that mechanical properties of the material could be controlled by changing the base wall angle of the configuration. The primary outcome of the study is a design guideline for the use of 3D star honeycomb auxetic cellular structure in structural applications.

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Rad, M. S., Ahmad, Z., & Alias, A. (2015). Computational approach in formulating mechanical characteristics of 3D star honeycomb auxetic structure. Advances in Materials Science and Engineering, 2015. https://doi.org/10.1155/2015/650769

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