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REVIEW ARTICLES: Computational Micromechanics

Estimates of Elastic Modulus for Media of Randomly Packed Granules

[+] Author and Article Information
Ching S. Chang

Department of Civil Engineering, University of Massachusetts, Amherst MA 01003

Ching L. Liao

Department of Construction Engineering and Technology, National Taiwan Institute of Technology, Taiwan ROC

Appl. Mech. Rev 47(1S), S197-S206 (Jan 01, 1994) doi:10.1115/1.3122814 History: Online April 29, 2009

Abstract

The model of static hypothesis is not readily available for granular material treated as a collection of particles. Unlike other types of material, the internal stresses in a granular system are concentrated at discrete inter-particle contacts. In this paper, we propose a static hypothesis and a micromechanical description of strain considering the packing structure. The upper and lower estimates of the elastic moduli for granular materials are derived in explicit terms of the inter-particle properties.

Copyright © 1994 by American Society of Mechanical Engineers
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