Stress correlations in granular materials: An entropic formulation
Repository Usage Stats
We study the response of dry granular materials to external stress using experiment, simulation, and theory. We derive a Ginzburg-Landau functional that enforces mechanical stability and positivity of contact forces. In this framework, the elastic moduli depend only on the applied stress. A combination of this feature and the positivity constraint leads to stress correlations whose shape and magnitude are extremely sensitive to the nature of the applied stress. The predictions from the theory describe the stress correlations for both simulations and experiments semiquantitatively. © 2009 The American Physical Society.
Published Version (Please cite this version)
Lois, G, J Zhang, TS Majmudar, S Henkes, B Chakraborty, CS O'Hern and RP Behringer (2009). Stress correlations in granular materials: An entropic formulation. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 80(6). p. 60303. 10.1103/PhysRevE.80.060303 Retrieved from https://hdl.handle.net/10161/4281.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
Unless otherwise indicated, scholarly articles published by Duke faculty members are made available here with a CC-BY-NC (Creative Commons Attribution Non-Commercial) license, as enabled by the Duke Open Access Policy. If you wish to use the materials in ways not already permitted under CC-BY-NC, please consult the copyright owner. Other materials are made available here through the author’s grant of a non-exclusive license to make their work openly accessible.