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A contact dynamics approach to the Granular Element Method

Lim, Keng-Wit and Krabbenhoft, Kristian and Andrade, José E. (2014) A contact dynamics approach to the Granular Element Method. Computer Methods in Applied Mechanics and Engineering, 268 . pp. 557-573. ISSN 0045-7825. https://resolver.caltech.edu/CaltechAUTHORS:20140320-104636713

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Abstract

We present a contact dynamics (CD) approach to the Granular Element Method (GEM) Andrade et al. (2012) [1], abbreviated here as CD–GEM. By combining particle shape flexibility through Non-Uniform Rational Basis Splines, properties of implicit time-integration discretization (e.g., larger time steps) and non-penetrating constraints, as well as a reduction to a static formulation in the limit of an infinite time step, CD–GEM targets system properties and deformation regimes in which the classical discrete element method either performs poorly or simply fails; namely, in granular systems comprising of rigid or highly stiff angular particles and subjected to quasi-static or intense dynamic flow conditions. The integration of CD and GEM is made possible while significantly simplifying implementation and maintaining comparable performance with existing CD approaches.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.cma.2013.10.004 DOIArticle
http://www.sciencedirect.com/science/article/pii/S0045782513002569PublisherArticle
Additional Information:© 2013 Elsevier B.V. Received 27 February 2013; Received in revised form 25 July 2013; Accepted 5 October 2013; Available online 23 October 2013.
Subject Keywords:Discrete element method; Granular Element Method; Contact dynamics; NURBS
Record Number:CaltechAUTHORS:20140320-104636713
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140320-104636713
Official Citation:Keng-Wit Lim, Kristian Krabbenhoft, José E. Andrade, A contact dynamics approach to the Granular Element Method, Computer Methods in Applied Mechanics and Engineering, Volume 268, 1 January 2014, Pages 557-573, ISSN 0045-7825, http://dx.doi.org/10.1016/j.cma.2013.10.004. (http://www.sciencedirect.com/science/article/pii/S0045782513002569)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:44407
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:21 Mar 2014 16:24
Last Modified:03 Oct 2019 06:17

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