discrete element modelling
Steps towards numerical verification of the terahertz in-line measurement of tablet mixing by means of discrete element modelling
... 2.3 Discrete element modelling and ray-tracing There is a growing interest towards mechanistic modelling based on solid and gas phase motions such as DEM and computational fluid dynamics in ...
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DISCRETE ELEMENT MODELLING OF PARTICLE DEGARDATION OF RAILWAY BALLAST MATERIAL WITH PFC3D SOFTWARE
... (and discrete element modelling within it) already allows assembled elements to be built on not just from a sphere or multiple spheres (‘clumps’), but polyhedra ...
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Discrete element modelling of the in-plane and out-of-plane behaviour of dry-joint masonry wall constructions
... Investigations into the suitability of the model to capture mechanisms A and B2, which often recur in the investigation of historical buildings after an earthquake (Figure 17), were undertaken. The mechanical behaviour ...
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Discrete element modelling (DEM) for masonry infilled steel frames with multiple window openings subjected to lateral load variations
... This paper emphasizes and creates awareness of the be- haviour discrepancy of infilled steel frames, with similar percentages of openings, but different multiple openings’ positions as well as load conditions. A two ...
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Particle breakage criteria in discrete element modelling
... the discrete element method (DEM) has used the octahedral shear stress within a sphere together with a Weibull distribution of strengths and a size effect on average strength, to determine whether fracture ...
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Hybrid finite discrete element modelling of blast induced excavation damaged zone in the top heading of deep tunnels
... finite-discrete element method (FEM/DEM) is introduced to model the excavation damage zone induced by blast in a deep ...finite-discrete element method, ...of modelling blast-induced ...
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Feeder Type Optimisation for the Plain Flow Discharge Process of an Underground Hopper by Discrete Element Modelling
... Evaluated results from the DEM simulation have shown that the proposed solution reduces the performance of the drag chain conveyor. However, the effectiveness of reducing the drag resistance parameters was not ...
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A study of geogrid reinforced ballast using laboratory pull out tests and discrete element modelling
... The discrete element method (DEM) has then been used to model the interaction between ballast and geogrid by simulating large box pull-out tests and comparing with experimental ...
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DISCRETE ELEMENT MODELLING OF THE IMPACT PARAMETERS OF A SELECTED FRUIT: MODEL VALIDATION AND EFFECT OF DAMPING
... Although only selected damping values were studied in impact simulation of the apple fruit on a hard surface the agreement in the features of the curve representing the behaviour of[r] ...
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Discrete element modelling of rock communition in a cone crusher using a bonded particle model
... that discrete element method modelling (DEM) of rock size reduction can be achieved by two approaches: the population balance model (PBM) and the bonded particle model ...DEM modelling cone ...
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Discrete element modelling of a rock cone crusher
... the discrete element method to model the performance of a cone crusher comminution machine has been explored using the particle replacement method (PRM) to represent the size reduction of rocks experienced ...
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Discrete element modelling of material non coaxiality in simple shear flows
... In past DEM simulations, the shear cell commonly consisted of four geometrically rigid line-walls forming a parallelogram, which is similar to that of the laboratory simple shear devices where the soil specimens are ...
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Discrete element modelling and cavity expansion analysis of cone penetration testing
... the discrete element method (DEM) in three dimensions to simulate cone penetration testing (CPT) of granular materials in a calibration ...finite element methods to study CPT ...
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Discrete element modelling of one dimensional compression of cemented sand
... 11 Normal compression lines for simulations with parallel bonds that prevent particle fracture, showing the effects of increasing bond strength.. One-dimensional compression simulations [r] ...
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Discrete element modelling of flexible fibre packing
... Each particle can be considered as a series of connected sub-ele- ments which are sphero-cylinders. A joint is a shared sphere, but as the particle deforms the joint effectively has two overlapping spheres; a linear ...
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Discrete element modelling of creep of asphalt mixtures
... finite element programs, however this approach does not focus on the micromechanical behaviour of the ...the discrete element method (DEM), which is commonly used to model the behaviour of granular ...
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Discrete element modelling of particulate flow in die filling and powder transfer
... within discrete element method framework is ...parameters, modelling parameters, die geometry, die orientation, and shoe volume on die filling and powder transfer have been ...
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Impact of shape representation schemes used in discrete element modelling of particle packing
... Distinct Element Method (DEM) first proposed by Cundall and Strack (1979) has become a standard numerical simulation methodology for modellers dealing with all kinds of ...
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Discrete element modelling of uniaxial constant strain rate tests on asphalt mixtures
... Cundall [1] introduced a simple computer program to model the progressive failure of a system of discrete blocks. In that paper, the basic theories of DEM were described. Since then, DEM has been widely used to ...
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Discrete element modelling of a flexible membrane for triaxial testing of granular material at high pressures
... For a row of membrane particles, the total horizontal force is the product of the confining pressure and vertical surface area; this force is distributed equally to all the particles in the row. This ensures that the ...
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