2D and 3D cubic monocrystalline and polycrystalline materials: their stability and mechanical properties

Autor:	Jasiukiewicz, C., Paszkiewicz, T., Wolski, S.
Rok vydání:	2009
Předmět:	Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
DOI:	10.1088/1742-6596/213/1/012029
Popis:	We consider 2- and 3-dimensional cubic monocrystalline and polycrystalline materials. Expressions for Young's and shear moduli and Poisson's ratio are expressed in terms of eigenvalues of the stiffness tensor. Such a form is well suited for studying properties of these mechanical characteristics on sides of the stability triangles. For crystalline high-symmetry directions lines of vanishing Poisson's ratio are found. These lines demarcate regions of the stability triangle into areas of various auxeticity properties. The simplest model of polycrystalline 2D and 3D cubic materials is considered. In polycrystalline phases the region of complete auxetics is larger than for monocrystalline materials. Comment: 9 pages, 3 figures, in proceedings of the Tenth International School on Theoretical Physics, Symmetry and Structural Properties of Condensed Matter, Myczkowce 2009
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0909.3938 Zobrazit plný text záznamu View this record from Arxiv