Force Chains, Microelasticity and Macroelasticity

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  • 19 August 2001
Abstract
Some recent experiments and theories suggest that (near) static granular and nanoscale materials exhibit departures from elastic behavior even at infinitesimal loadings. It is demonstrated, through a study of the forces and stress fields in finite discrete systems, that (at least some of) the pertinent phenomena are consistent with elasticity, the apparent non-elastic behavior being a manifestation of finite size, small (including sub-particle) scale effects, and small scale anisotropy. Other findings can be attributed to large scale anisotropy, disorder, and boundary conditions.

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