Vibrational Collapse of Hexapod Packings
| Autor: | Jingqiu Ding, Achim Menges, Hu Zheng, Karola Dierichs, Yuchen Zhao, Robert Behringer, Jonathan Barés |
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| Přispěvatelé: | Department of Physics & Center for Nonlinear and Complex Systems, Duke University [Durham], Nanjing University (NJU), Laboratoire de Mécanique et Génie Civil (LMGC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Physique et Mécanique des Milieux Divisés (PMMD), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institute for Computational Design, University of Stuttgart |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Physics
Work (thermodynamics) Hexapod QC1-999 Collapse (topology) Mechanics [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] 01 natural sciences 010305 fluids & plasmas Exponential function Vibration Column (typography) 0103 physical sciences Relaxation (physics) Statistical physics Current (fluid) 010306 general physics Astrophysics::Galaxy Astrophysics |
| Zdroj: | Powders and Grains 2017 Powders and Grains 2017, Jul 2017, Montpellier, France EPJ Web of Conferences, Vol 140, p 06011 (2017) HAL |
| Popis: | International audience; Columns made of convex noncohesive grains like sand collapse after being released from a confining container. However, structures built from non-convex grains can be stable without external support. In the current experiments, we investigate the effect of vibration on destroying such columns. The change of column height during vertical vibration, can be well characterized by stretched exponential relaxation when the column is short, which is in agreement with previous work, while a faster collapse happens when the column is tall. We investigate the collapse after the fast process including its dependence on column geometry, and on interparticle and basal friction. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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