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Continuum modeling of rate-dependent granular flows in SPH

Hurley, Ryan C. and Andrade, José E. (2017) Continuum modeling of rate-dependent granular flows in SPH. Computational Particle Mechanics, 4 (1). pp. 119-130. ISSN 2196-4378.

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We discuss a constitutive law for modeling rate-dependent granular flows that has been implemented in smoothed particle hydrodynamics (SPH). We model granular materials using a viscoplastic constitutive law that produces a Drucker–Prager-like yield condition in the limit of vanishing flow. A friction law for non-steady flows, incorporating rate-dependence and dilation, is derived and implemented within the constitutive law. We compare our SPH simulations with experimental data, demonstrating that they can capture both steady and non-steady dynamic flow behavior, notably including transient column collapse profiles. This technique may therefore be attractive for modeling the time-dependent evolution of natural and industrial flows.

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Additional Information:© 2016 OWZ. Received: 23 May 2016. Revised: 26 July 2016. First Online:13 September 2016. Support by the Air Force Office of Scientific Research Grant # FA9550-12-1-0091 through the University Center of Excellence in High-Rate Deformation Physics of Heterogeneous Materials is gratefully acknowledged. This work was partially performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)FA9550-12-1-0091
Department of Energy (DOE)DE-AC52-07NA27344
Subject Keywords:Granular media; Particulate flow; Smoothed particle hydrodynamics
Issue or Number:1
Record Number:CaltechAUTHORS:20161109-145544827
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Official Citation:Hurley, R.C. & Andrade, J.E. Comp. Part. Mech. (2017) 4: 119. doi:10.1007/s40571-016-0132-5
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:71892
Deposited By: Ruth Sustaita
Deposited On:09 Nov 2016 23:15
Last Modified:03 Oct 2019 16:12

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