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Packing and Structure in Systems Containing Rod-Like Particles

Published online by Cambridge University Press:  21 February 2011

Larry A. Chick
Affiliation:
Battelle, Pacific Northwest Laboratories (K2-44), Richland, WA 99352
Christopher Viney
Affiliation:
Department of Materials Science and Engineering (FB-1O), and the Advanced Materials Technology Program, University of Washington, Seattle, WA 98195
Ilhan A. Aksay
Affiliation:
Department of Materials Science and Engineering (FB-1O), and the Advanced Materials Technology Program, University of Washington, Seattle, WA 98195
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Abstract

A non-discrete Monte Carlo algorithm is used to model the packing of static rods. The results establish that inter-rod contact results solely from rod motion, not from space-filling effects. As the concentration of static rods is increased, clusters of aligned rods form and grow. The effects of rod motion are inferred through thermodynamic analysis. At sufficiently high rod concentrations, rod motion is expected to cause structural coarsening wherein the rods rearrange into larger but fewer clusters. These results should be considered when modeling the structure and mechanical behavior of whisker- and chopped-fiber-reinforced composites.

Type
Research Article
Copyright
Copyright © Materials Research Society 1989

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