Calculation of Linear and Non‐Linear Elastic Properties of Polycrystalline Materials by Use of a Cluster Model
Author(s) -
H. Kiewel,
H. J. Bunge,
L. Fritsche
Publication year - 1997
Publication title -
texture stress and microstructure
Language(s) - English
Resource type - Journals
eISSN - 1687-5400
pISSN - 1687-5397
DOI - 10.1155/tsm.28.261
Subject(s) - cluster (spacecraft) , crystallite , linear elasticity , materials science , constant (computer programming) , linear relationship , statistical physics , mathematics , thermodynamics , physics , computer science , finite element method , metallurgy , statistics , programming language
In the present paper we have put together some results of a cluster method that allows the calculationof linear and also non-linear effective elastic constants of polycrystalline materials within an iterativeself-consistent scheme. The conceptual idea consists in simulating the real material by a suitably chosencluster of single grains. One can then determine the elastic properties of the material under study byexamining the elastic behavior of the cluster. The method is capable of resolving the effect of the grainshape, that is determined by the coordination number of the grains on the effective constants.
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