Feasible packing of granular materials in discrete-element modelling of cone-penetration testing
نویسندگان
چکیده
منابع مشابه
Packing of compressible granular materials
3D computer simulations and experiments are employed to study random packings of compressible spherical grains under external confining stress. In the rigid ball limit, we find a continuous transition in which the stress vanishes as (straight phi-straight phi(c))(beta), where straight phi is the (solid phase) volume density. The value of straight phi(c) depends on whether the grains interact vi...
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In the present paper, discrete element method (DEM) is used to study wave propagation phenomenon in granular soils. The effect of factors such as coefficient of friction, frequency, normal stiffness and soil gradation on the wave velocity is studied. Using the wall motion based on the sinusoidal function is the method of loading used in this simulation, through which the pressure wave is transf...
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متن کاملNumerical simulation of particulate materials using discrete element modelling
Discrete element method (DEM) is a numerical technique pioneered by Cundall for problems in rock mechanics where the continuity between the separate elements does not exist. Discrete numerical simulations with particles are currently used in several different scientific disciplines. The DEM is capable of handling a wide range of material behaviour, inter-body interaction force laws and arbitrar...
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ژورنال
عنوان ژورنال: Geomechanics and Geoengineering
سال: 2018
ISSN: 1748-6025,1748-6033
DOI: 10.1080/17486025.2018.1435912