منابع مشابه
Constitutive relations for cohesionless frictional granular materials
Based on the micro-mechanical model recently developed by Nemat-Nasser S. (J. Mech. Phys. Solids 48 (2000) 1541), a three-dimensional continuum mechanics model is presented for the deformation of granular materials which carry the applied load through frictional contacts. The model incorporates the anisotropy (or fabric) which develops as a frictional granular mass is deformed in shear, and inc...
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چکیده ندارد.
15 صفحه اولCracking condition of cohesionless porous materials in drying processes.
The invasion of air into porous systems in drying processes is often localized in soft materials, such as colloidal suspensions and granular pastes, and it typically develops in the form of cracks before ordinary drying begins. To investigate such processes, we construct an invasion percolation model on a deformable lattice for cohesionless elastic systems, and with this model we derive the con...
متن کاملThe Limiting Ideal Theory for Shear-index Cohesionless Granular Materials
To model cohesionless granular flow using continuum theory, the usual approach is to assume the cohesionless Coulomb-Mohr yield condition. However, this yield condition assumes that the angle of internal friction is constant, when according to experimental evidence for most powders the angle of internal friction is not constant along the yield locus, but decreases for decreasing normal stress c...
متن کاملExperimental and theoretical study of rapid flows of cohesionless granular materials down inclined chutes
A theoretical and experimental study is performed of rapid, fully developed flows of cohesionless granular materials down inclined chutes with a rough base. Two flow types are studied in detail: (1) immature sliding flow, where a stagnant zone forms on the base of the chute, and (2) fully developed sliding flow, where no such zone is formed. A simple phenomenological theory is developed that pr...
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ژورنال
عنوان ژورنال: Journal of Waterway, Port, Coastal, and Ocean Engineering
سال: 2005
ISSN: 0733-950X,1943-5460
DOI: 10.1061/(asce)0733-950x(2005)131:3(115)