Accession Number ADA574031
Title Multiscale Phenomena in the Solid-Liquid Transition State of a Granular Material.
Publication Date Nov 2011
Media Count 8p
Personal Author R. P. Behringer
Abstract This project, with Antoinette Tordesillas of U of Melbourne, investigated models for the upper soil surface and its response to applied loads. We have examined key aspects above, experimentally and with computer simulations. We developed new micromechanically-based continuum models with predictive capabilities for multiscale phenomena in the soil/granular liquid- solid regime, based on the experiments and simulations. The Duke work involved detailed experiments that provided detailed information about the collective and local properties of granular materials subject to shear and compression. We have shown that the jamming of granular materials is fundamentally different than for other frictionless particular systems. In collaboration with Antoinette Tordesillas, and using our photoelastic experiments, we have developed and tested a new stability method for characterizing granular materials, specifically at the level of clusters and networks.
Keywords Force chains
Granular materials
Jamming
Networks
Soil mechanics
Soil stability


 
Source Agency Non Paid ADAS
NTIS Subject Category 48E - Soil Sciences
50D - Soil & Rock Mechanics
71M - Miscellaneous Materials
46E - Structural Mechanics
Corporate Author Duke Univ., Durham, NC.
Document Type Technical report
Title Note Final rept. 1 Apr 2007-31 Mar 2010.
NTIS Issue Number 1318
Contract Number W911NF-07-1-0131

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