SIMULATION OF MATERIAL MICROSTRUCTURE USING A 3D VORONOI TESSELLATION - CALCULATION OF EFFECTIVE THERMAL-EXPANSION COEFFICIENT OF POLYCRYSTALLINE MATERIALS

被引：46

作者：

KUMAR, S ^{[1
]}

KURTZ, SK ^{[1
]}

机构：

[1] PENN STATE UNIV, MAT RES LAB, UNIVERSITY PK, PA 16802 USA

来源：

ACTA METALLURGICA ET MATERIALIA | 1994年 / 42卷 / 12期

关键词：

D O I：

10.1016/0956-7151(94)90170-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The three-dimensional Poisson-Voronoi model is used to simulate a topologically equivalent material microstructure. A finite element package has been written to use this model to calculate the effective thermal expansion coefficient of the polycrystalline aggregate using the single crystal thermoelastic properties. The results have been found to be close to the experimental values and the values calculated from the Hashin's exact equation for hexagonal, tetragonal and trigonal materials.

引用

页码：3917 / 3927

页数：11

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