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A model for size-effects in steadily flowing granular media: formulation and basic validation Ken Kamrin, MIT |
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“Buoyancy” in granular medium: how deep can an object sink in sand? Qingfan Shi, Beijing Institute of Technology |
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David Henann, Brown University, United States |
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Damage evolution in a bonded nonwoven glass fiber network under cyclic compression Thomas Siegmund, Purdue University, United States |
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Decoding the chemomechanics of friction and scratch in complex granular hydrated oxides Rouzbeh Shahsavari, Rice University, United States |
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Effects of microscale rolling friction on dense virtual particle assemblies Zamir Syed, Iowa State University, United States |
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Kamran Karimi, CMU, United States |
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Experimental assessment of fracture of individual sand particles at different loading rates Niranjan Parab, Purdue University, United States |
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Experiments and simulations of the interaction of high velocity granular slugs with structures Ashish Goel, University of Cambridge, United Kingdom |
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Flow of granular materials with slip boundary condition Xinran Zhao, Carnegie Mellon University, Pittsburgh, PA, United States |
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Friction in inertial granular flows: microscopic and macroscopic origins Ryan Hurley, California Institute of Technology, United States |
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Granular micromechanics model for cementitious materials Payam Poorsolhjouy, University of Kansas, United States |
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Height fluctuations of granular river beds modeled as a stochastic process Prashant Purohit, University of Pennsylvania, United States |
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High hops on sand influenced by added mass effects Jeffrey Aguilar, Georgia Tech, United States |
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Imaging forces in a three-dimensional granular material Jonathan Bares, Duke University, United States |
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Zhijie Wang, University of Michigan, United States |
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Meso-scale modeling of granular material including grain fracture using grain morphology Anne Turner, University of Tennesse – Knoxville, United States |
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Microscopic origin of macroscopic strength in granular materials Alex Jerves, California Institute of Technology, United States |
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Yi Fan, The Dow Chemical Company |
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Nanomechanical characterization of clay micro flocs Guoping Zhang, University of Massachusetts Amherst, Amherst, MA 01003, United States |
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Numerical simulation of a two-component mixture (fluid-particles) between two plates Xinran Zhao, Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15236, United States |
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Predicting polydisperse granular segregation Austin Isner, Northwestern University, United States |
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Corentin Coulais, Paris Sud University, FAST Lab, France |
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Shear-rate-independent collisional diffusion in granular materials Paul B. Umbanhowar, Northwestern University, United States |
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Thermomechanics-based granular micromechanics rate dependent coupled damage-plasticity model Anil Misra, University of Kansas, United States |
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Materials of a disordered particulate composition, such as granular matter and colloids, are ubiquito us in industry and as geomaterials in nature. These materials display a number of distinctive phenomena, which differentiate them from ordered materials. Macroscopically, they are capable of behaving both solid-like (elasticity, visco-plastic behavior, shear-banding) and fluid-like (rate-sensitive rheological behavior) depending on loading an d the internal material state. This variety stems from a rich microstructural involvement, whose underlying mechanisms and connections to the continuum scale remain unresolved issues of current research. While full discrete simulation offers one approach to modeling these materials, it is generally computationally intractable for large bodies and long times. On the other hand, scale-free continuum approaches can be imprecise due to the crucial role of micro-level fluctuations and finite size-effects. These observations highlight the need for developing multiscale approaches, aimed at bridging the discrete microscale response to the macroscale. This session shall focus on the mechanics of particulate materials at length-scales ranging from the discrete particle-size to the continuum scale -- using theory, simulation, and experimental characterization -- aimed at building accurate multiscaling techniques as well as gaining a deeper general understanding of these materials for the purposes of improved modeling.