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Title: Continuum modeling of rate-dependent granular flows in SPH

Journal Article · · Computational Particle Mechanics
 [1];  [2]
  1. California Inst. of Technology (CalTech), Pasadena, CA (United States). Division of Engineering and Applied Sciences
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

In this paper, 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. In conclusion, this technique may therefore be attractive for modeling the time-dependent evolution of natural and industrial flows.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1406446
Report Number(s):
LLNL-JRNL-692800
Journal Information:
Computational Particle Mechanics, Vol. 4, Issue 1; ISSN 2196-4378
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

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  • Bui, Ha H.; Fukagawa, Ryoichi; Sako, Kazunari
  • International Journal for Numerical and Analytical Methods in Geomechanics, Vol. 32, Issue 12 https://doi.org/10.1002/nag.688
journal August 2008

Cited By (3)

Simulation of quasi-static axisymmetric collapse of granular columns using smoothed particle hydrodynamics and discrete element methods journal August 2018
Smooth particle hydrodynamics studies of wet granular column collapses journal June 2019
The particle finite element method for transient granular material flow: modelling and validation journal February 2020

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