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Elastic Properties of a Tungsten-Silver Composite by Reconstruction and Computation

Published

Author(s)

A P. Roberts, Edward Garboczi

Abstract

A three-dimensional model of a tungsten-silver composite is statistically constructed from an experimental two-dimensional image. The effective Young's modulus (E) of the model is computed in the temperature range 25-1060 C using a finite element method. The results are in good agreement with experimental data. The reconstructed and overlapping sphere models are examples of bi-continuous (non-particulate) media. The computed moduli of the models are not generally in good agreement with the predictions of the self-consistent method. We have also been possible to evaluate the three-point variational bounds on the Young's moduli of the models using the results of Beran, Molyneaux, Milton, and Phan-Thien. The measured data were close to the upper bound if the properties of the two phases were similar (1/6 < E1 / E2 < 6).
Citation
Journal of the Mechanics and Physics of Solids
Volume
47
Issue
No. 10

Keywords

Building Technology, composite, elastic moduli, finite element, reconstruction

Citation

Roberts, A. and Garboczi, E. (1999), Elastic Properties of a Tungsten-Silver Composite by Reconstruction and Computation, Journal of the Mechanics and Physics of Solids (Accessed June 24, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created August 31, 1999, Updated October 12, 2021