Search Results - "Luding, Stefan"

Cohesive, frictional powders: contact models for tension by Luding, Stefan

“…The contacts between cohesive, frictional particles with sizes in the range 0.1–10 μm are the subject of this study. Discrete element model (DEM) simulations…”
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Elastic–plastic intermittent re-arrangements of frictionless, soft granular matter under very slow isotropic deformations by Luding, Stefan

“…How do soft granular materials (or dense amorphous systems) respond to externally applied deformations at different rates and for different system sizes? This…”
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Memory of jamming–multiscale models for soft and granular matter by Kumar, Nishant, Luding, Stefan

“…Soft, disordered, micro-structured materials are ubiquitous in nature and industry, and are different from ordinary fluids or solids, with unusual, interesting…”
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How does static granular matter re-arrange for different isotropic strain rate? by Luding, Stefan

“…The question of how soft granular matter, or dense amorphous systems, re-arrange their microstructure under isotropic compression and de-compression, at…”
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Fluid–particle flow simulations using two-way-coupled mesoscale SPH–DEM and validation by Robinson, Martin, Ramaioli, Marco, Luding, Stefan

“…[Display omitted] •We present a simulation method for fluid–particle flows using coupled SPH and DEM.•Purely particle-based method, no prescribed…”
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Elastic wave propagation in dry granular media: Effects of probing characteristics and stress history by Cheng, Hongyang, Luding, Stefan, Saitoh, Kuniyasu, Magnanimo, Vanessa

“…Elastic wave propagation provides a noninvasive way to examine polydisperse, frictional granular materials. The discrete element method (DEM) allows for a…”
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Wet granular flow control through liquid induced cohesion by Jarray, Ahmed, Magnanimo, Vanessa, Luding, Stefan

“…Liquid induced cohesion has a significant effect on the flow characteristics of wet granular assemblies. The strength of capillary forces between the particles…”
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The influence of material and process parameters on powder spreading in additive manufacturing by Shaheen, Mohamad Yousef, Thornton, Anthony R., Luding, Stefan, Weinhart, Thomas

“…Additive manufacturing (AM) or 3D printing is beginning to mature from a rapid prototyping to an industrial production technology. However, there are still a…”
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An iterative Bayesian filtering framework for fast and automated calibration of DEM models by Cheng, Hongyang, Shuku, Takayuki, Thoeni, Klaus, Tempone, Pamela, Luding, Stefan, Magnanimo, Vanessa

“…The nonlinear, history-dependent macroscopic behavior of a granular material is rooted in the micromechanics between constituent particles and irreversible,…”
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Influence of coarse-graining parameters on the analysis of DEM simulations of silo flow by Weinhart, Thomas, Labra, Carlos, Luding, Stefan, Ooi, Jin Y.

“…The discrete element method (DEM) is used extensively for the simulation of granular materials and in powder technology. Averaging or coarse graining (CG)…”
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A general(ized) local rheology for wet granular materials by Roy, Sudeshna, Luding, Stefan, Weinhart, Thomas

“…We study the rheology of dry and wet granular materials in the steady quasistatic regime using the discrete element method in a split-bottom ring shear cell…”
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Effect of cohesion on shear banding in quasistatic granular materials by Singh, Abhinendra, Magnanimo, Vanessa, Saitoh, Kuniyasu, Luding, Stefan

“…Cohesive powders have widely different bulk behavior due to their peculiar interactions. We use discrete element simulations to investigate the effect of…”
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Un-jamming due to energetic instability: statics to dynamics by Luding, Stefan, Jiang, Yimin, Liu, Mario

“…Jamming/un-jamming, the transition between solid- and fluid-like behavior in granular matter, is an ubiquitous phenomenon in need of a sound understanding. As…”
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CG-enriched concurrent multi-scale modeling of dynamic surface interactions between discrete particles and solid continua by Cheng, Hongyang, Luding, Stefan, Weinhart, Thomas

“…The interaction between granular materials and deformable structures is relevant to many industries, such as mining, construction, and powder processing…”
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The role of gravity or pressure and contact stiffness in granular rheology by Singh, Abhinendra, Magnanimo, Vanessa, Saitoh, Kuniyasu, Luding, Stefan

“…The steady-state shear rheology of granular materials is investigated in slow quasistatic and inertial flows. The effect of gravity (thus the local pressure)…”
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Tuning the bulk properties of bidisperse granular mixtures by small amount of fines by Kumar, Nishant, Magnanimo, Vanessa, Ramaioli, Marco, Luding, Stefan

“…We study the bulk properties of isotropic bidisperse granular mixtures using discrete element simulations. The focus is on the influence of the size (radius)…”
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Additional Transition Line in Jammed Asymmetric Bidisperse Granular Packings by Petit, Juan C., Kumar, Nishant, Luding, Stefan, Sperl, Matthias

“…We present numerical evidence for an additional discontinuous transition, upon compression, inside the jammed regime for an asymmetric bidisperse granular…”
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Steady state rheology of homogeneous and inhomogeneous cohesive granular materials by Shi, Hao, Roy, Sudeshna, Weinhart, Thomas, Magnanimo, Vanessa, Luding, Stefan

“…This paper aims to understand the effect of different particle/contact properties like friction, softness and cohesion on the compression/dilation of sheared…”
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Stochastic Model for Energy Propagation in Disordered Granular Chains by Taghizadeh, Kianoosh, Shrivastava, Rohit Kumar, Luding, Stefan

“…Energy transfer is one of the essentials of mechanical wave propagation (along with momentum transport). Here, it is studied in disordered one-dimensional…”
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Effect of Particle Size and Cohesion on Powder Yielding and Flow by Shi, Hao, Mohanty, Rahul, Chakravarty, Somik, Cabiscol, Ramon, Morgeneyer, Martin, Zetzener, Harald, Ooi, Jin Y., Kwade, Arno, Luding, Stefan, Magnanimo, Vanessa

“…The bulk properties of powders depend on material characteristics and size of the primary particles. During storage and transportation processes in the powder…”
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