Simulation of material microstructure using a 3D Voronoi tesselation: Calculation of effective thermal expansion coefficient of polycrystalline materials

Journal Article · Thu Dec 01 00:00:00 EST 1994 · Acta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-7151(94)90170-8· OSTI ID:6802797

Kumar, S ^[1]; Kurtz, S K ^[2]

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1. Univ. of Cincinnati, OH (United States). Materials Science and Engineering
2. Pennsylvania State Univ., University Park, PA (United States)

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 thermo-elastic 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.

• OSTI ID: 6802797
• Journal Information: Acta Metallurgica et Materialia; (United States), Vol. 42:12; ISSN 0956-7151
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANTIMONY
MICROSTRUCTURE
THERMAL EXPANSION
BISMUTH
CADMIUM
URANIUM
ZINC
MATHEMATICAL MODELS
POLYCRYSTALS
THEORETICAL DATA
ACTINIDES
CRYSTALS
DATA
ELEMENTS
EXPANSION
INFORMATION
METALS
NUMERICAL DATA
360102* - Metals & Alloys- Structure & Phase Studies
360104 - Metals & Alloys- Physical Properties